首页 > 最新文献

2014 International Conference on Communication and Signal Processing最新文献

英文 中文
High density impulse noise removal using BDND filtering algorithm 基于BDND滤波算法的高密度脉冲噪声去除
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950186
Gophika Thanakumar, S. Murugappriya, G. Suresh
Switching median filters outperform standard median filters in the removal of impulse noise. This is because, it considers only the noisy pixels and performs filtering operation on that pixels without considering noise-free pixels. The Boundary Discriminative Noise Detection (BDND) filter is proven to operate effectively under different impulse noise models. It initially classifies pixels into three groups as (a) low intensity impulse noise (b) high intensity impulse noise (c) uncorrupted pixels. Then noise detection and filtering steps are performed. Pixel misclassification is the main drawback of BDND filtering algorithm. So we modify the filtering step of this algorithm and named it as modified boundary discriminative noise detection (MBDND). The two modifications incorporated are as follows: (1) Expansion of filtering window. (2) Incorporating spatial and intensity information. By introducing these modifications into the algorithm, it is found that there is increase in the performance and the quality of image has improved. Results are compared with other median filters like Center Weighted Median Filter (CWMF), Progressive Switching Median Filter (PSMF), Adaptive Threshold Median Filter (ATMF) and it is found that MBDND performs well even at high noise density (90%).
开关中值滤波器在去除脉冲噪声方面优于标准中值滤波器。这是因为,它只考虑有噪声的像素,而不考虑无噪声的像素,对这些像素进行滤波操作。边界判别噪声检测(BDND)滤波器在不同的脉冲噪声模型下都能有效地工作。它最初将像素分为三组:(a)低强度脉冲噪声(b)高强度脉冲噪声(c)未损坏像素。然后进行噪声检测和滤波步骤。像素误分类是BDND滤波算法的主要缺点。为此,我们对该算法的滤波步骤进行了改进,并将其命名为改进边界判别噪声检测(MBDND)。引入的两个修改是:(1)扩大过滤窗口。(2)结合空间和强度信息。通过在算法中引入这些改进,算法的性能得到了提高,图像的质量得到了改善。将结果与中心加权中值滤波器(CWMF)、渐进切换中值滤波器(PSMF)、自适应阈值中值滤波器(ATMF)等其他中值滤波器进行比较,发现MBDND即使在高噪声密度(90%)下也表现良好。
{"title":"High density impulse noise removal using BDND filtering algorithm","authors":"Gophika Thanakumar, S. Murugappriya, G. Suresh","doi":"10.1109/ICCSP.2014.6950186","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950186","url":null,"abstract":"Switching median filters outperform standard median filters in the removal of impulse noise. This is because, it considers only the noisy pixels and performs filtering operation on that pixels without considering noise-free pixels. The Boundary Discriminative Noise Detection (BDND) filter is proven to operate effectively under different impulse noise models. It initially classifies pixels into three groups as (a) low intensity impulse noise (b) high intensity impulse noise (c) uncorrupted pixels. Then noise detection and filtering steps are performed. Pixel misclassification is the main drawback of BDND filtering algorithm. So we modify the filtering step of this algorithm and named it as modified boundary discriminative noise detection (MBDND). The two modifications incorporated are as follows: (1) Expansion of filtering window. (2) Incorporating spatial and intensity information. By introducing these modifications into the algorithm, it is found that there is increase in the performance and the quality of image has improved. Results are compared with other median filters like Center Weighted Median Filter (CWMF), Progressive Switching Median Filter (PSMF), Adaptive Threshold Median Filter (ATMF) and it is found that MBDND performs well even at high noise density (90%).","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"29 17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122984193","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: 4
Design of CPW fed monopole microstrip patch antenna for Wi-Fi application 用于Wi-Fi应用的CPW馈电单极微带贴片天线设计
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950183
S. Chidambara Krishnan, S. Arunmozhi
A novel compact microstrip monopole antenna with coplanar waveguide (CPW)-feed is designed. The proposed antenna consists of inverted L-strip along with L shaped strip over conventional monopole antenna to lower the height and breadth of antenna. The space around radiator is saved by having ground that is vertically extended on either side of the antenna. The prototype with overall size of 23.2 mm ×22.5 mm ×0.8 mm achieves good impedance matching, constant gain, stable radiation patterns for the Wi-Fi frequency of 3.6 GHz.
设计了一种新型的共面波导馈电微带单极天线。该天线由倒L形带和L形带组成,以降低天线的高度和宽度。通过在天线的两侧垂直延伸地面,可以节省散热器周围的空间。整体尺寸为23.2 mm ×22.5 mm ×0.8 mm的样机在3.6 GHz的Wi-Fi频率下实现了良好的阻抗匹配、恒定的增益、稳定的辐射模式。
{"title":"Design of CPW fed monopole microstrip patch antenna for Wi-Fi application","authors":"S. Chidambara Krishnan, S. Arunmozhi","doi":"10.1109/ICCSP.2014.6950183","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950183","url":null,"abstract":"A novel compact microstrip monopole antenna with coplanar waveguide (CPW)-feed is designed. The proposed antenna consists of inverted L-strip along with L shaped strip over conventional monopole antenna to lower the height and breadth of antenna. The space around radiator is saved by having ground that is vertically extended on either side of the antenna. The prototype with overall size of 23.2 mm ×22.5 mm ×0.8 mm achieves good impedance matching, constant gain, stable radiation patterns for the Wi-Fi frequency of 3.6 GHz.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122953962","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
Compress-and-forward relaying with polar codes for LTE-A system LTE-A系统用极性编码的压缩转发中继
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949953
N. Madhusudhanan, L. Nithyanandan
Deploying compress-and-forward relay nodes is a promising and better solution for LTE-A networks to meet the capacity and coverage requirements of 4G and beyond systems. However, selecting a relay plays an important role in enhancing the benefits. In this paper, a compress-and-forward relay is proposed using polar codes which achieves better performance than turbo codes, but more importantly with less time complexity and reduced processing delay. Simulation results proved a major improvement of the system performance in terms of block error rate and processing delay.
部署压缩转发中继节点是LTE-A网络满足4G及以上系统的容量和覆盖要求的一种有前途的更好的解决方案。然而,选择接力在提高效益方面起着重要作用。本文提出了一种使用极性码的压缩转发中继,它比turbo码具有更好的性能,更重要的是它具有更小的时间复杂度和更小的处理延迟。仿真结果表明,在块错误率和处理延迟方面,系统性能有了很大的提高。
{"title":"Compress-and-forward relaying with polar codes for LTE-A system","authors":"N. Madhusudhanan, L. Nithyanandan","doi":"10.1109/ICCSP.2014.6949953","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949953","url":null,"abstract":"Deploying compress-and-forward relay nodes is a promising and better solution for LTE-A networks to meet the capacity and coverage requirements of 4G and beyond systems. However, selecting a relay plays an important role in enhancing the benefits. In this paper, a compress-and-forward relay is proposed using polar codes which achieves better performance than turbo codes, but more importantly with less time complexity and reduced processing delay. Simulation results proved a major improvement of the system performance in terms of block error rate and processing delay.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"442 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123276717","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: 9
Performance analysis of selection combining diversity scheme in generalised Rayleigh fading channels 广义瑞利衰落信道中选择组合分集方案的性能分析
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949986
Sirisha Malluri, V. K. Pamula
Closed form expressions for the probability of outage, the level crossing rate and average fade duration of L-branch selection combiner in generalised Rayleigh (GR) distribution are presented for independent and identically distributed (i.i.d.) channels. Further the average bit error probability for M-ary phase shift keying modulation scheme also derived. These results are compared with Rayleigh distribution in each case.
针对独立和同分布信道,给出了广义瑞利(GR)分布下l支路选择组合器的中断概率、平交率和平均衰落持续时间的封闭表达式。此外,还推导出了任意相移键控调制方案的平均误码率。在每种情况下,这些结果与瑞利分布进行了比较。
{"title":"Performance analysis of selection combining diversity scheme in generalised Rayleigh fading channels","authors":"Sirisha Malluri, V. K. Pamula","doi":"10.1109/ICCSP.2014.6949986","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949986","url":null,"abstract":"Closed form expressions for the probability of outage, the level crossing rate and average fade duration of L-branch selection combiner in generalised Rayleigh (GR) distribution are presented for independent and identically distributed (i.i.d.) channels. Further the average bit error probability for M-ary phase shift keying modulation scheme also derived. These results are compared with Rayleigh distribution in each case.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122145710","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
Conventional Band (C-band) Wavelength Division Multiplexed Passive Optical Network (WDM-PON) 常规波段(c波段)波分复用无源光网络(WDM-PON)
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949866
Vivek Kachhatiya, S. Prince
We propose a Conventional Band (C-band) Wavelength Division Multiplexed Passive Optical Network (WDM-PON) architecture which comprises of WDM Mux/DeMux, tunable receivers, tunable transmitter. C-band WDM-PON prototype is demonstrated/simulated to provide 20Gb/s downstream and 20Gb/s upstream bandwidth. This prototype system offers minimum loss budget of 21.3 dB and support 40Km link distance with 1:8 split ratio.
我们提出了一种传统波段(c波段)波分多路无源光网络(WDM- pon)架构,该架构由波分复用/多路复用、可调谐接收器、可调谐发射器组成。演示/仿真c波段WDM-PON原型,提供20Gb/s下行和20Gb/s上行带宽。该原型系统的最小损耗预算为21.3 dB,支持40Km链路距离,1:8分割比。
{"title":"Conventional Band (C-band) Wavelength Division Multiplexed Passive Optical Network (WDM-PON)","authors":"Vivek Kachhatiya, S. Prince","doi":"10.1109/ICCSP.2014.6949866","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949866","url":null,"abstract":"We propose a Conventional Band (C-band) Wavelength Division Multiplexed Passive Optical Network (WDM-PON) architecture which comprises of WDM Mux/DeMux, tunable receivers, tunable transmitter. C-band WDM-PON prototype is demonstrated/simulated to provide 20Gb/s downstream and 20Gb/s upstream bandwidth. This prototype system offers minimum loss budget of 21.3 dB and support 40Km link distance with 1:8 split ratio.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":" 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113952095","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
An approach to assure QoS for dynamically reconfigurable component-based software systems 一种保证基于组件的动态可重构软件系统QoS的方法
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950070
R. Reeta, Prof.A. K. Mariappan
The main concept of dynamic reconfiguration is to make a system to change from one configuration to another during run time, without shutting down and rebooting the system. This is very helpful to avoid downtime during software maintenance. Providing various quality of services (QoS) namely, adaptability, availability and maintainability are the major challenges faced during dynamic reconfiguration for component based systems. This work argues that the main benefit to make dynamic reconfiguration for component systems is to minimize application disruption. A quantitative evaluation for QoS assurance to the proposed work is conducted in two steps. First, reconfigurable component model is implemented using reconfiguration strategies. Second, each reconfiguration strategy is tested using reconfiguration benchmark results and then, testing results are evaluated. Thus the QoS characteristics can be achieved using some constraints under some acceptable environment.
动态重新配置的主要概念是使系统在运行期间从一种配置更改为另一种配置,而无需关闭和重新启动系统。这对于避免软件维护期间的停机非常有帮助。提供各种服务质量(QoS),即适应性、可用性和可维护性,是基于组件的系统动态重构过程中面临的主要挑战。这项工作认为,对组件系统进行动态重新配置的主要好处是尽量减少应用程序中断。本文分两个步骤对所提工作的QoS保证进行了定量评估。首先,采用重构策略实现可重构组件模型。其次,利用重构基准测试结果对每种重构策略进行测试,并对测试结果进行评估。因此,可以在某种可接受的环境下使用一些约束来实现QoS特性。
{"title":"An approach to assure QoS for dynamically reconfigurable component-based software systems","authors":"R. Reeta, Prof.A. K. Mariappan","doi":"10.1109/ICCSP.2014.6950070","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950070","url":null,"abstract":"The main concept of dynamic reconfiguration is to make a system to change from one configuration to another during run time, without shutting down and rebooting the system. This is very helpful to avoid downtime during software maintenance. Providing various quality of services (QoS) namely, adaptability, availability and maintainability are the major challenges faced during dynamic reconfiguration for component based systems. This work argues that the main benefit to make dynamic reconfiguration for component systems is to minimize application disruption. A quantitative evaluation for QoS assurance to the proposed work is conducted in two steps. First, reconfigurable component model is implemented using reconfiguration strategies. Second, each reconfiguration strategy is tested using reconfiguration benchmark results and then, testing results are evaluated. Thus the QoS characteristics can be achieved using some constraints under some acceptable environment.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121048587","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
A simple architecture for 40 Gbps optical CSRZ - QDPSK transmitter 40gbps光CSRZ - QDPSK发射机的简单结构
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950111
G. M. Anoja Derlin Rose, C. Rimmya, M. Ganesh Madhan
Carrier Suppressed Return to Zero - Quadrature Differential Phase shift keying (CSRZ - QDPSK) is one of the promising modulation formats for 40 Gbps optical networks. In this paper, a novel scheme with reduced number of MZMs for CSRZ - QDPSK transmitter is demonstrated. A CSRZ Pulse Carver generates pulses from either of the in-phase and quadrature-phase components and is modulated using a Mach Zehnder Modulator. The proposed method achieves the same performance compared to the conventional schemes with reduced number of components at the transmitter end.
载波抑制归零-正交差分相移键控(CSRZ - QDPSK)是40gbps光网络中最有前途的调制格式之一。本文提出了一种减少mzm数的CSRZ - QDPSK发射机方案。CSRZ脉冲切割器从同相和正交相分量中产生脉冲,并使用马赫曾德尔调制器进行调制。该方法通过减少发射端器件数量,达到了与传统方案相同的性能。
{"title":"A simple architecture for 40 Gbps optical CSRZ - QDPSK transmitter","authors":"G. M. Anoja Derlin Rose, C. Rimmya, M. Ganesh Madhan","doi":"10.1109/ICCSP.2014.6950111","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950111","url":null,"abstract":"Carrier Suppressed Return to Zero - Quadrature Differential Phase shift keying (CSRZ - QDPSK) is one of the promising modulation formats for 40 Gbps optical networks. In this paper, a novel scheme with reduced number of MZMs for CSRZ - QDPSK transmitter is demonstrated. A CSRZ Pulse Carver generates pulses from either of the in-phase and quadrature-phase components and is modulated using a Mach Zehnder Modulator. The proposed method achieves the same performance compared to the conventional schemes with reduced number of components at the transmitter end.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122463262","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
Signal detection for Spatially Multiplexed multi input multi output (MIMO) systems 空间复用多输入多输出(MIMO)系统的信号检测
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949914
Komal Punia, Emy Mariam George, K. Vinoth Babu, G. Ramachandra Reddy
High-data-rate transmission can be achieved by Spatially Multiplexed (SM) MIMO systems. Spatial demultiplexing at the receiver end is a difficult task. Thus, several research works has been developed for demultiplexing and decoding. In this paper three signal detection methods namely Zero-Forcing (ZF), Minimum Mean Squared Error (MMSE) and Maximum Likelihood (ML) are implemented. In Zero-Forcing method, noise enhancement is the problem. The complexity of implementing ZF and MMSE is much low but their performance is remarkably inferior to ML detection. Many active researchers are done to develop the signal detection methods based on the ML detection criterion while still aimed to achieve a near-optimal performance with low complexity. The comparative study of three methods is done in relevance to three digital modulation schemes namely Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK) and 16-Quadrature Amplitude Modulation (QAM). Simulation results also state that ML gives better performance as compared to ZF and MMSE detection methods.
空间复用(SM) MIMO系统可以实现高数据速率传输。接收端的空间解复用是一项困难的任务。因此,一些研究工作已经发展为解复用和解码。本文实现了零强迫(Zero-Forcing, ZF)、最小均方误差(Minimum Mean Squared Error, MMSE)和最大似然(Maximum Likelihood, ML)三种信号检测方法。在零强迫方法中,噪声增强是一个问题。实现ZF和MMSE的复杂性要低得多,但它们的性能明显不如ML检测。许多活跃的研究人员都在开发基于机器学习检测标准的信号检测方法,同时仍然旨在以低复杂度实现接近最优的性能。针对二值相移键控(BPSK)、正交相移键控(QPSK)和16正交调幅(QAM)三种数字调制方案,对三种方法进行了比较研究。仿真结果还表明,与ZF和MMSE检测方法相比,ML具有更好的性能。
{"title":"Signal detection for Spatially Multiplexed multi input multi output (MIMO) systems","authors":"Komal Punia, Emy Mariam George, K. Vinoth Babu, G. Ramachandra Reddy","doi":"10.1109/ICCSP.2014.6949914","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949914","url":null,"abstract":"High-data-rate transmission can be achieved by Spatially Multiplexed (SM) MIMO systems. Spatial demultiplexing at the receiver end is a difficult task. Thus, several research works has been developed for demultiplexing and decoding. In this paper three signal detection methods namely Zero-Forcing (ZF), Minimum Mean Squared Error (MMSE) and Maximum Likelihood (ML) are implemented. In Zero-Forcing method, noise enhancement is the problem. The complexity of implementing ZF and MMSE is much low but their performance is remarkably inferior to ML detection. Many active researchers are done to develop the signal detection methods based on the ML detection criterion while still aimed to achieve a near-optimal performance with low complexity. The comparative study of three methods is done in relevance to three digital modulation schemes namely Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK) and 16-Quadrature Amplitude Modulation (QAM). Simulation results also state that ML gives better performance as compared to ZF and MMSE detection methods.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124175752","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
Performance of cooperative communication aided MC-CDMA system using transmitter preprocessing based on vector quantized CSI 基于矢量量化CSI的发射机预处理协同通信辅助MC-CDMA系统性能研究
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6950138
Ananya Ravi, P. Nagaradjane, Nagarajan Velmurugan
In this contribution, we investigate the performance of a cooperative communication aided downlink (DL) multi-carrier code division multiple access (MC-CDMA) system with the aid of transmitter preprocessing (TP) realized based on vector quantized (VQ) channel state information (CSI) acquired via feedback channels. In our work, we assume that each of the K destination mobile stations (DMS) is supported by a group of mobile stations (MSs) acting as relays to achieve the relay diversity. Specifically, we employ preprocessing at the base station (BS) to suppress the multi-user interference (MUI) at the relays that precludes in achieving the relay diversity. Further, inter-relay interference (IRI) at the destination mobile stations (DMSs) is mitigated with the support of the preprocessing operated at the relays. To be specific, the preprocessing operated at the BS is based on the maximum-signal-to-interference-plus-noise ratio (MSINR) approach, while that operated at the relays is based on the classical minimum-mean-square error principle. Both the preprocessing approaches are formulated based on the VQ-CSI acquired via feedback channels. Our study demonstrates that TP-aided cooperative DL MC-CDMA system results in better achievable bit-error-rate (BER) as the TP assists in achieving the relay diversity by eliminating the DL-MUI and IRI at the relays and the DMSs, respectively. Furthermore, our study reveals that the attainable BER of the VQ-CSI based TP remains close to that attained with the perfect CSI based TP.
在这篇论文中,我们研究了一种基于矢量量化(VQ)信道状态信息(CSI)实现的发射机预处理(TP)的协同通信辅助下行(DL)多载波码分多址(MC-CDMA)系统的性能。在我们的工作中,我们假设K个目标移动站(DMS)中的每一个都由一组移动站(ms)作为中继来支持,以实现中继分集。具体来说,我们在基站(BS)上使用预处理来抑制中继上的多用户干扰(MUI),这种干扰妨碍了中继分集的实现。此外,在中继操作的预处理支持下,目的移动站(dms)的中继间干扰(IRI)得到缓解。具体而言,在BS上进行的预处理基于最大信噪比(MSINR)方法,而在继电器上进行的预处理基于经典的最小均方误差原理。这两种预处理方法都是基于通过反馈通道获取的VQ-CSI制定的。我们的研究表明,TP辅助的协同DL MC-CDMA系统可以获得更好的可实现误码率(BER),因为TP分别通过消除中继和dms上的DL- mui和IRI来帮助实现中继分集。此外,我们的研究表明,基于VQ-CSI的TP可获得的误码率仍然接近于基于完美CSI的TP所获得的误码率。
{"title":"Performance of cooperative communication aided MC-CDMA system using transmitter preprocessing based on vector quantized CSI","authors":"Ananya Ravi, P. Nagaradjane, Nagarajan Velmurugan","doi":"10.1109/ICCSP.2014.6950138","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6950138","url":null,"abstract":"In this contribution, we investigate the performance of a cooperative communication aided downlink (DL) multi-carrier code division multiple access (MC-CDMA) system with the aid of transmitter preprocessing (TP) realized based on vector quantized (VQ) channel state information (CSI) acquired via feedback channels. In our work, we assume that each of the K destination mobile stations (DMS) is supported by a group of mobile stations (MSs) acting as relays to achieve the relay diversity. Specifically, we employ preprocessing at the base station (BS) to suppress the multi-user interference (MUI) at the relays that precludes in achieving the relay diversity. Further, inter-relay interference (IRI) at the destination mobile stations (DMSs) is mitigated with the support of the preprocessing operated at the relays. To be specific, the preprocessing operated at the BS is based on the maximum-signal-to-interference-plus-noise ratio (MSINR) approach, while that operated at the relays is based on the classical minimum-mean-square error principle. Both the preprocessing approaches are formulated based on the VQ-CSI acquired via feedback channels. Our study demonstrates that TP-aided cooperative DL MC-CDMA system results in better achievable bit-error-rate (BER) as the TP assists in achieving the relay diversity by eliminating the DL-MUI and IRI at the relays and the DMSs, respectively. Furthermore, our study reveals that the attainable BER of the VQ-CSI based TP remains close to that attained with the perfect CSI based TP.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125284274","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
Hybrid antenna selection at transmitter (HAST) scheme for future broadband wireless system 面向未来宽带无线系统的发射端混合天线选择方案
Pub Date : 2014-04-03 DOI: 10.1109/ICCSP.2014.6949893
Krishna Bala, K. Nallagatja, G. R. Vinoth Babu, Bibin Reddy, John Baby
In this paper, a new adaptive HAST scheme is proposed for Space Frequency Block Coded (SFBC)-Orthogonal Frequency Division Multiplexing (OFDM) system. This HAST scheme uses subcarrier by subcarrier antenna selection. The performance of the proposed scheme is analyzed for different antenna configurations with average Signal to Noise Ratio (SNR) gain and Bit Error Rate (BER) parameters. The simulation results prove that the performance of conventional SFBC-OFDM system is greatly improved with the proposed scheme.
针对空间频率块编码(SFBC)-正交频分复用(OFDM)系统,提出了一种新的自适应HAST方案。该方案采用子载波对子载波天线进行选择。采用平均信噪比(SNR)增益和误码率(BER)参数,分析了该方案在不同天线配置下的性能。仿真结果表明,该方案大大提高了传统SFBC-OFDM系统的性能。
{"title":"Hybrid antenna selection at transmitter (HAST) scheme for future broadband wireless system","authors":"Krishna Bala, K. Nallagatja, G. R. Vinoth Babu, Bibin Reddy, John Baby","doi":"10.1109/ICCSP.2014.6949893","DOIUrl":"https://doi.org/10.1109/ICCSP.2014.6949893","url":null,"abstract":"In this paper, a new adaptive HAST scheme is proposed for Space Frequency Block Coded (SFBC)-Orthogonal Frequency Division Multiplexing (OFDM) system. This HAST scheme uses subcarrier by subcarrier antenna selection. The performance of the proposed scheme is analyzed for different antenna configurations with average Signal to Noise Ratio (SNR) gain and Bit Error Rate (BER) parameters. The simulation results prove that the performance of conventional SFBC-OFDM system is greatly improved with the proposed scheme.","PeriodicalId":149965,"journal":{"name":"2014 International Conference on Communication and Signal Processing","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125374183","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
期刊
2014 International Conference on Communication and Signal Processing
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