首页 > 最新文献

2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)最新文献

英文 中文
Cyclic prefixed versus zero-padded-coherent optical OFDM systems' based MMSE equalization 基于循环前缀与零填充的相干光OFDM系统的MMSE均衡
O. Oyerinde
This paper investigates the effects of zero padding and cyclic prefixing in channel equalization for coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. Two equalization-based algorithms, namely zero forcing (ZF) and minimum mean square error (MMSE) based equalizers are employed for the system The computer simulation results show that the zero padded (ZP)-CO-OFDM system outperforms its counterpart, the CP-CO-OFDM system. These results indicate that the ZP-CO-OFDM system can mitigate effects of the fiber link such as chromatic dispersion and polarization mode dispersion better than the CP-CO-OFDM system. The results also show that the MMSE based equalizer only slightly outperforms the ZF-based equalizer, that has associated low computational complexity, in the ZP-CO-OFDM system.
研究了零填充和循环前缀在相干光正交频分复用(CO-OFDM)系统信道均衡中的作用。系统采用了零强制(ZF)和最小均方误差(MMSE)两种均衡算法。计算机仿真结果表明,零填充(ZP)-CO-OFDM系统优于CP-CO-OFDM系统。结果表明,与CP-CO-OFDM系统相比,ZP-CO-OFDM系统可以更好地缓解光纤链路的色散和偏振模色散等影响。结果还表明,在ZP-CO-OFDM系统中,基于MMSE的均衡器仅略优于基于zf的均衡器,后者具有较低的计算复杂度。
{"title":"Cyclic prefixed versus zero-padded-coherent optical OFDM systems' based MMSE equalization","authors":"O. Oyerinde","doi":"10.1109/ICSPCS.2017.8270470","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270470","url":null,"abstract":"This paper investigates the effects of zero padding and cyclic prefixing in channel equalization for coherent optical orthogonal frequency division multiplexing (CO-OFDM) system. Two equalization-based algorithms, namely zero forcing (ZF) and minimum mean square error (MMSE) based equalizers are employed for the system The computer simulation results show that the zero padded (ZP)-CO-OFDM system outperforms its counterpart, the CP-CO-OFDM system. These results indicate that the ZP-CO-OFDM system can mitigate effects of the fiber link such as chromatic dispersion and polarization mode dispersion better than the CP-CO-OFDM system. The results also show that the MMSE based equalizer only slightly outperforms the ZF-based equalizer, that has associated low computational complexity, in the ZP-CO-OFDM system.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114936786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multi-channel speech enhancement in driving environment 驾驶环境下的多通道语音增强
Weiyun Jin, Jie Wei, Xiaofeng Zhong
Speech enhancement algorithms based on microphone array have been applied to intelligent speech communication systems, such as vehicle systems, teleconferencing and hearing aids. This paper proposed an improved generalized sidelobe canceller(GSC) algorithm to eliminate the intense noise interference of the speech, which is recorded in the driving environment. First, it introduced low-frequency suppression; then, it utilized source location to improve the blocking matrix, thus effectively reducing the speech leakage; finally, the multi-band spectral subtraction algorithm was combined for denoising model. Experimental results show that the proposed microphone array based speech enhancement method has a significant performance in terms of both SNR and intelligibility.
基于麦克风阵列的语音增强算法已经应用于智能语音通信系统,如车载系统、电话会议和助听器。本文提出了一种改进的广义旁瓣抵消(GSC)算法,用于消除驾驶环境中录制的语音的强烈噪声干扰。首先,引入了低频抑制;然后利用信源定位对分组矩阵进行改进,有效降低了语音泄漏;最后,结合多波段谱减法对模型进行去噪。实验结果表明,所提出的基于麦克风阵列的语音增强方法在信噪比和可理解性方面都有显著的性能。
{"title":"Multi-channel speech enhancement in driving environment","authors":"Weiyun Jin, Jie Wei, Xiaofeng Zhong","doi":"10.1109/ICSPCS.2017.8270478","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270478","url":null,"abstract":"Speech enhancement algorithms based on microphone array have been applied to intelligent speech communication systems, such as vehicle systems, teleconferencing and hearing aids. This paper proposed an improved generalized sidelobe canceller(GSC) algorithm to eliminate the intense noise interference of the speech, which is recorded in the driving environment. First, it introduced low-frequency suppression; then, it utilized source location to improve the blocking matrix, thus effectively reducing the speech leakage; finally, the multi-band spectral subtraction algorithm was combined for denoising model. Experimental results show that the proposed microphone array based speech enhancement method has a significant performance in terms of both SNR and intelligibility.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"64 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114107772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
EE-CAN: Energy efficient clustering in aerial networks EE-CAN:空中网络中的能效集群
S. Chandrasekharan, K. Sithamparanathan, R. Evans
Aerial networks based on Low Altitude Platforms (LAP) provides an excellent method to rapidly deploy flexible communications infrastructure during large-scale emergency and public events. In such situations, it is of utmost importance to extend the lifetime of the battery operated hand-held devices serving on the ground. In this paper, we propose a novel clustering technique to improve the energy efficiency of the terrestrial nodes served by the aerial base-station under uncertain channel conditions on the ground. The proposed technique is analysed by means of simulations and the results are compared with well-known clustering algorithms. The results show that the proposed clustering mechanism significantly improves the energy efficiency of the terrestrial nodes under certain conditions.
基于低空平台(LAP)的空中网络为大规模突发事件和公共事件中快速部署灵活的通信基础设施提供了一种极好的方法。在这种情况下,延长在地面服务的电池供电手持设备的寿命是至关重要的。本文提出了一种新的聚类技术,以提高地面信道不确定条件下航空基站服务的地面节点的能量效率。通过仿真对该方法进行了分析,并与常用的聚类算法进行了比较。结果表明,在一定条件下,提出的聚类机制显著提高了地面节点的能量效率。
{"title":"EE-CAN: Energy efficient clustering in aerial networks","authors":"S. Chandrasekharan, K. Sithamparanathan, R. Evans","doi":"10.1109/ICSPCS.2017.8270497","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270497","url":null,"abstract":"Aerial networks based on Low Altitude Platforms (LAP) provides an excellent method to rapidly deploy flexible communications infrastructure during large-scale emergency and public events. In such situations, it is of utmost importance to extend the lifetime of the battery operated hand-held devices serving on the ground. In this paper, we propose a novel clustering technique to improve the energy efficiency of the terrestrial nodes served by the aerial base-station under uncertain channel conditions on the ground. The proposed technique is analysed by means of simulations and the results are compared with well-known clustering algorithms. The results show that the proposed clustering mechanism significantly improves the energy efficiency of the terrestrial nodes under certain conditions.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127259442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Modelling dynamic body motion using IMUs positioned on the torso 使用放置在躯干上的imu模拟动态身体运动
Alanna Vial, D. Stirling, M. Ros, P. Vial, M. Field
This study investigated the application of Symbolic Aggregate approXimation (SAX) to modelling dynamic body motion using a single inertial measurement unit (IMU). In addition this study demonstrates how IMUs located at different positions around the body produce comparable results. This study investigates the output of multiple IMU sensors, employed to monitor movement. Next a comparison of the sternum, pelvis, head and lower back sensor locations is conducted by analysing the measured rotation and position IMU data. Additionally, the classifier has been improved by increasing the information in the training data to avoid incorrect classification of similar activities. The results obtained in this study also prove that the sternum and head sensors provided comparable data to the pelvis sensor when using TSBs for classification, especially when used to classify dynamic activities. To pre-process the data, sub-dimensional motif discovery was employed to find features within the data from multiple IMUs. This improves on previous studies which illustrated difficulty classifying fast movements using the sternum IMU. This data was also approximated using SAX and classified by comparing Time Series Bitmaps (TSB's) to find the least Euclidean distance between the reference TSB's and the sliding window TSB's.
本文研究了符号聚合近似(SAX)在单惯性测量单元(IMU)下动态物体运动建模中的应用。此外,该研究还展示了位于身体周围不同位置的imu如何产生可比较的结果。本研究探讨了用于监测运动的多个IMU传感器的输出。接下来,通过分析测量的旋转和位置IMU数据,对胸骨、骨盆、头部和下背部的传感器位置进行比较。此外,通过增加训练数据中的信息来改进分类器,以避免对相似活动的错误分类。本研究的结果也证明,胸骨和头部传感器在使用tsb进行分类时,特别是在用于动态活动分类时,提供了与骨盆传感器相当的数据。为了对数据进行预处理,采用子维motif发现方法在多个imu的数据中寻找特征。这改进了先前的研究,这些研究表明使用胸骨IMU很难对快速运动进行分类。该数据也使用SAX进行近似,并通过比较时间序列位图(TSB’s)进行分类,以找到参考TSB’s和滑动窗口TSB’s之间的最小欧几里得距离。
{"title":"Modelling dynamic body motion using IMUs positioned on the torso","authors":"Alanna Vial, D. Stirling, M. Ros, P. Vial, M. Field","doi":"10.1109/ICSPCS.2017.8270465","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270465","url":null,"abstract":"This study investigated the application of Symbolic Aggregate approXimation (SAX) to modelling dynamic body motion using a single inertial measurement unit (IMU). In addition this study demonstrates how IMUs located at different positions around the body produce comparable results. This study investigates the output of multiple IMU sensors, employed to monitor movement. Next a comparison of the sternum, pelvis, head and lower back sensor locations is conducted by analysing the measured rotation and position IMU data. Additionally, the classifier has been improved by increasing the information in the training data to avoid incorrect classification of similar activities. The results obtained in this study also prove that the sternum and head sensors provided comparable data to the pelvis sensor when using TSBs for classification, especially when used to classify dynamic activities. To pre-process the data, sub-dimensional motif discovery was employed to find features within the data from multiple IMUs. This improves on previous studies which illustrated difficulty classifying fast movements using the sternum IMU. This data was also approximated using SAX and classified by comparing Time Series Bitmaps (TSB's) to find the least Euclidean distance between the reference TSB's and the sliding window TSB's.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125369825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Receiver cooperative MIMO-OFDM capacity with quantization error and spatial correlation 具有量化误差和空间相关性的接收机协同MIMO-OFDM容量
D. Umehara, R. Saiki
Let us consider that space division multiplexing (SDM) signal is transmitted at a base station (BS) with a number of antennae to mobile terminals (MTs) with fewer antennae. It will be intractable for a MT to demultiplex the SDM signal by space filtering in the case of less degrees of freedom at the MT. Receiver cooperative multiple-input and multiple-output (RC-MIMO) is applied to demultiplex the SDM signal with the enhancement of degrees of freedom at the MT by sharing the other SDM signals received at the surrounding MTs with pulse code modulated radio over higher-frequency radio (PCM-RoHR). In this paper, we show the capacity of RC-MIMO with PCM-RoHR by taking its fading spatial correlation and quantization error into consideration with numerical analysis.
假设空分多路复用(SDM)信号是由拥有多个天线的基站(BS)传送至拥有较少天线的移动终端(MTs)。在MT处自由度较小的情况下,通过空间滤波对SDM信号进行解复用是难以解决的问题。接收机合作多输入多输出(RC-MIMO)通过在高频无线电(PCM-RoHR)上与周围MT处接收的其他SDM信号共享,从而在MT处提高自由度,将SDM信号解复用。本文通过数值分析,考虑了PCM-RoHR的衰落空间相关性和量化误差,证明了RC-MIMO的容量。
{"title":"Receiver cooperative MIMO-OFDM capacity with quantization error and spatial correlation","authors":"D. Umehara, R. Saiki","doi":"10.1109/ICSPCS.2017.8270514","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270514","url":null,"abstract":"Let us consider that space division multiplexing (SDM) signal is transmitted at a base station (BS) with a number of antennae to mobile terminals (MTs) with fewer antennae. It will be intractable for a MT to demultiplex the SDM signal by space filtering in the case of less degrees of freedom at the MT. Receiver cooperative multiple-input and multiple-output (RC-MIMO) is applied to demultiplex the SDM signal with the enhancement of degrees of freedom at the MT by sharing the other SDM signals received at the surrounding MTs with pulse code modulated radio over higher-frequency radio (PCM-RoHR). In this paper, we show the capacity of RC-MIMO with PCM-RoHR by taking its fading spatial correlation and quantization error into consideration with numerical analysis.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114783434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
On a new nonlinear image filtering technique 一种新的非线性图像滤波技术
D. Kouri, Michael M. Zhang, Desheng Zhang
A generalization of the varying weight trimmed mean (VWTM) filter is proposed for the removal of both additive and impulse noise from corrupted images by introducing the center pixel to the original VWTM filter. Unlike many traditional nonlinear filters, one key feature of the VWTM filter is that the weights of the pixels to be averaged are not constant. They vary based on their differences to the median value. By adding the weight varying center pixel to the VWTM filtering formalism, the center pixel is therefore involved in adjusting its filtering output. Studies of the proposed filtering technique with several other methods show that the present method, in comparison, is extremely robust and efficient for removing noise from highly corrupted images.
将变权裁剪均值(VWTM)滤波器推广到原VWTM滤波器中,通过引入中心像素来去除损坏图像中的加性噪声和脉冲噪声。与许多传统的非线性滤波器不同,VWTM滤波器的一个关键特征是要平均的像素的权重不是恒定的。它们根据与中位数的差异而变化。通过将权值变化的中心像素添加到VWTM滤波形式中,中心像素参与调整其滤波输出。将所提出的滤波技术与其他几种方法进行比较表明,本方法对于从高度损坏的图像中去除噪声具有很强的鲁棒性和有效性。
{"title":"On a new nonlinear image filtering technique","authors":"D. Kouri, Michael M. Zhang, Desheng Zhang","doi":"10.1109/ICSPCS.2017.8270495","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270495","url":null,"abstract":"A generalization of the varying weight trimmed mean (VWTM) filter is proposed for the removal of both additive and impulse noise from corrupted images by introducing the center pixel to the original VWTM filter. Unlike many traditional nonlinear filters, one key feature of the VWTM filter is that the weights of the pixels to be averaged are not constant. They vary based on their differences to the median value. By adding the weight varying center pixel to the VWTM filtering formalism, the center pixel is therefore involved in adjusting its filtering output. Studies of the proposed filtering technique with several other methods show that the present method, in comparison, is extremely robust and efficient for removing noise from highly corrupted images.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131132725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Implementation of a two stage fully-blind self-adapted spectrum sensing algorithm 一种两阶段全盲自适应频谱感知算法的实现
Thomas Jordbru, Mohamed Hamid, Linga Reddy Cenkeramaddi, Henning Idsøe, B. Beferull-Lozano
In this paper, an experimental validation of a combined two-stage detector called 2EMC is carried out. The detector is proposed in [1]. The 2EMC is composed of energy detector as a primary stage and maximum-minimum eigenvalue detector as a secondary stage. The 2EMC outperforms the two individual detectors in terms of the probability of detection for the same probability of false alarm. Regarding the complexity measured in the sensing time, the 2EMC sensing time is bounded by the sensing times of the two individual detectors. 2EMC incorporates noise estimation that is used by the energy detector, which makes it fully-blind and self-adapted detector. The noise estimator performance is expressed in terms of the normalized mean square error (NMSE). The 2EMC is implemented using USRPs and signals transmitted wirelessly. Measurements results show functionality and validate the theoretical findings.
本文对一种名为2EMC的组合式两级探测器进行了实验验证。该探测器是在b[1]中提出的。电磁兼容由能量检测器作为一级和最大-最小特征值检测器作为二级组成。对于相同的虚警概率,2EMC在检测概率方面优于两个单独的检测器。对于传感时间测量的复杂性,2EMC传感时间由两个单独检测器的传感次数限定。电磁兼容融合了能量检测器所使用的噪声估计,使其成为全盲自适应检测器。噪声估计器的性能用归一化均方误差(NMSE)表示。2EMC使用usrp和无线传输的信号来实现。测量结果显示了该方法的功能性,并验证了理论结果。
{"title":"Implementation of a two stage fully-blind self-adapted spectrum sensing algorithm","authors":"Thomas Jordbru, Mohamed Hamid, Linga Reddy Cenkeramaddi, Henning Idsøe, B. Beferull-Lozano","doi":"10.1109/ICSPCS.2017.8270477","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270477","url":null,"abstract":"In this paper, an experimental validation of a combined two-stage detector called 2EMC is carried out. The detector is proposed in [1]. The 2EMC is composed of energy detector as a primary stage and maximum-minimum eigenvalue detector as a secondary stage. The 2EMC outperforms the two individual detectors in terms of the probability of detection for the same probability of false alarm. Regarding the complexity measured in the sensing time, the 2EMC sensing time is bounded by the sensing times of the two individual detectors. 2EMC incorporates noise estimation that is used by the energy detector, which makes it fully-blind and self-adapted detector. The noise estimator performance is expressed in terms of the normalized mean square error (NMSE). The 2EMC is implemented using USRPs and signals transmitted wirelessly. Measurements results show functionality and validate the theoretical findings.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130386589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Uplink control channel for 5G new RAT 5G新RAT上行控制通道
Lihui Wang, Yuki Matsumura, K. Takeda, Xiaolin Hou, Satoshi Nagata
In this paper, designs for the New Radio (NR) physical uplink control channel (NR PUCCH) spanning 1 orthogonal frequency division multiplexing (OFDM) symbol duration (short-PUCCH) is investigated. Two short-PUCCH formats i.e., Format A, in which demodulation reference signal (DMRS) and uplink control information (UCI) are FDMed, and Format B, in which DMRS and UCI are TDMed, are proposed and evaluated by computer simulation. For Format A, various DMRS overheads can be realized by adjusting the numbers of DMRS subcarriers and that of UCI subcarriers for the given 1 OFDM symbol. For Format B, we assume no FDM between DMRS and UCI, so that discrete Fourier transform (DFT)-spread OFDM (DFT-s-OFDM) waveform is applicable; in order to adjust DMRS overhead, we locate more than one OFDM symbols within the given 1 OFDM symbol duration by using higher subcarrier spacing (SCS) for the short-PUCCH with Format B. The link-level evaluation results and link-budget analysis show that Format A offers better link-level performance than Format B, while better link-budget performance is achieved by Format B, with taking into account the peak-to-average power ratio (PAPR) power back-off margin.
本文研究了跨越1个正交频分复用(OFDM)码长(short-PUCCH)的新无线电(NR)物理上行控制信道(NR PUCCH)的设计。提出了两种短pucch格式,即以解调参考信号(DMRS)和上行控制信息(UCI)为FDMed的格式A和以DMRS和UCI为TDMed的格式B,并通过计算机仿真对其进行了评估。对于A格式,对于给定的1个OFDM符号,可以通过调整DMRS子载波的数量和UCI子载波的数量来实现各种DMRS开销。对于格式B,我们假设DMRS和UCI之间没有FDM,因此适用离散傅立叶变换(DFT)-扩频OFDM (DFT-s-OFDM)波形;为了调整DMRS开销,我们在给定的1个OFDM符号持续时间内,通过使用更高的子载波间距(SCS)对带有格式B的短pucch定位多个OFDM符号。链路级评估结果和链路预算分析表明,考虑到峰值平均功率比(PAPR)功率回退余量,格式A具有比格式B更好的链路级性能,而格式B具有更好的链路预算性能。
{"title":"Uplink control channel for 5G new RAT","authors":"Lihui Wang, Yuki Matsumura, K. Takeda, Xiaolin Hou, Satoshi Nagata","doi":"10.1109/ICSPCS.2017.8270481","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270481","url":null,"abstract":"In this paper, designs for the New Radio (NR) physical uplink control channel (NR PUCCH) spanning 1 orthogonal frequency division multiplexing (OFDM) symbol duration (short-PUCCH) is investigated. Two short-PUCCH formats i.e., Format A, in which demodulation reference signal (DMRS) and uplink control information (UCI) are FDMed, and Format B, in which DMRS and UCI are TDMed, are proposed and evaluated by computer simulation. For Format A, various DMRS overheads can be realized by adjusting the numbers of DMRS subcarriers and that of UCI subcarriers for the given 1 OFDM symbol. For Format B, we assume no FDM between DMRS and UCI, so that discrete Fourier transform (DFT)-spread OFDM (DFT-s-OFDM) waveform is applicable; in order to adjust DMRS overhead, we locate more than one OFDM symbols within the given 1 OFDM symbol duration by using higher subcarrier spacing (SCS) for the short-PUCCH with Format B. The link-level evaluation results and link-budget analysis show that Format A offers better link-level performance than Format B, while better link-budget performance is achieved by Format B, with taking into account the peak-to-average power ratio (PAPR) power back-off margin.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131086708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Real time speech emotion recognition using RGB image classification and transfer learning 基于RGB图像分类和迁移学习的实时语音情感识别
Melissa N. Stolar, M. Lech, R. Bolia, Michael Skinner
This paper describes a real-time Speech Emotion Recognition (SER) task formulated as an image classification problem. The shift to an image classification paradigm provided the advantage of using an existing Deep Neural Network (AlexNet) pre-trained on a very large number of images, and thus eliminating the need for a lengthy network training process. Two alternative multi-class SER systems, AlexNet-SVM and FTAlexNet, were investigated. Both systems were shown to achieve state-of-the-art results when tested on a popular Berlin Emotional Speech (EMO-DB) database. Transformation from speech to image classification was achieved by creating RGB images depicting speech spectrograms. The ALEXNet-SVM method passes the spectrogram images as inputs to a pre-trained Convolutional Neural Network (AlexNet) to provide features for the Support Vector Machine (SVM) classifier, whereas the FTAlexNet method simply applies the images to a fine tuned AlexNet to provide emotional class labels. The FTAlexNet offers slightly higher accuracy compared to the AlexNet-SVM, while the AlexNet-SVM requires a lower number of computations due to the elimination of the neural network training procedure. A real-time demo is given on: https://www.youtube.com/watch?v=fuMpF3cUqDU&t=6s.
本文将实时语音情感识别(SER)任务表述为图像分类问题。向图像分类范式的转变提供了使用现有深度神经网络(AlexNet)对大量图像进行预训练的优势,从而消除了对冗长的网络训练过程的需要。研究了AlexNet-SVM和FTAlexNet两种可选的多类SER系统。在流行的柏林情感演讲(EMO-DB)数据库中进行的测试显示,这两种系统都取得了最先进的结果。通过创建描绘语音谱图的RGB图像来实现从语音到图像分类的转换。AlexNet -SVM方法将频谱图图像作为输入传递给预训练的卷积神经网络(AlexNet),为支持向量机(SVM)分类器提供特征,而FTAlexNet方法只是将图像应用于微调的AlexNet,以提供情感类标签。与AlexNet-SVM相比,FTAlexNet提供了略高的精度,而AlexNet-SVM由于消除了神经网络训练过程,需要更少的计算量。实时演示在:https://www.youtube.com/watch?v=fuMpF3cUqDU&t=6s上给出。
{"title":"Real time speech emotion recognition using RGB image classification and transfer learning","authors":"Melissa N. Stolar, M. Lech, R. Bolia, Michael Skinner","doi":"10.1109/ICSPCS.2017.8270472","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270472","url":null,"abstract":"This paper describes a real-time Speech Emotion Recognition (SER) task formulated as an image classification problem. The shift to an image classification paradigm provided the advantage of using an existing Deep Neural Network (AlexNet) pre-trained on a very large number of images, and thus eliminating the need for a lengthy network training process. Two alternative multi-class SER systems, AlexNet-SVM and FTAlexNet, were investigated. Both systems were shown to achieve state-of-the-art results when tested on a popular Berlin Emotional Speech (EMO-DB) database. Transformation from speech to image classification was achieved by creating RGB images depicting speech spectrograms. The ALEXNet-SVM method passes the spectrogram images as inputs to a pre-trained Convolutional Neural Network (AlexNet) to provide features for the Support Vector Machine (SVM) classifier, whereas the FTAlexNet method simply applies the images to a fine tuned AlexNet to provide emotional class labels. The FTAlexNet offers slightly higher accuracy compared to the AlexNet-SVM, while the AlexNet-SVM requires a lower number of computations due to the elimination of the neural network training procedure. A real-time demo is given on: https://www.youtube.com/watch?v=fuMpF3cUqDU&t=6s.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125109626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 39
Passive detection of BPSK radar signals with unknown parameters using multi-sensor arrays 多传感器阵列无源探测未知参数BPSK雷达信号
Peter Q. C. Ly, S. Sirianunpiboon, S. D. Elton
This paper develops a multi-sensor generalised likelihood ratio test (GLRT) detector to robustly detect the presence of radar signals with binary phase shift keying (BPSK) modulation with completely unknown parameters in noise using the output of a multi-sensor array. The performance of the proposed detector is evaluated through simulations and compared against two cyclostationary detectors. Simulation results demonstrate that the proposed multi-sensor GLRT detector offers more robust detection of BPSK signals in low signal-to-noise ratio conditions and at lower false alarm rates compared to the multi-sensor cyclostationary methods.
本文开发了一种多传感器广义似然比检验(GLRT)检测器,用于鲁棒检测噪声中参数完全未知的二元相移键控(BPSK)调制雷达信号。通过仿真评估了该探测器的性能,并与两种循环平稳探测器进行了比较。仿真结果表明,与多传感器周期平稳方法相比,所提出的多传感器GLRT检测器在低信噪比条件下对BPSK信号具有更强的鲁棒性和更低的虚警率。
{"title":"Passive detection of BPSK radar signals with unknown parameters using multi-sensor arrays","authors":"Peter Q. C. Ly, S. Sirianunpiboon, S. D. Elton","doi":"10.1109/ICSPCS.2017.8270503","DOIUrl":"https://doi.org/10.1109/ICSPCS.2017.8270503","url":null,"abstract":"This paper develops a multi-sensor generalised likelihood ratio test (GLRT) detector to robustly detect the presence of radar signals with binary phase shift keying (BPSK) modulation with completely unknown parameters in noise using the output of a multi-sensor array. The performance of the proposed detector is evaluated through simulations and compared against two cyclostationary detectors. Simulation results demonstrate that the proposed multi-sensor GLRT detector offers more robust detection of BPSK signals in low signal-to-noise ratio conditions and at lower false alarm rates compared to the multi-sensor cyclostationary methods.","PeriodicalId":268205,"journal":{"name":"2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115834879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
期刊
2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1