Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359985
Qianguo Chen
With the rapid development of the online education, various E-learning platform have generated tremendous amount of data, which provide the basis for quantitative analysis of learning behavior. The purpose of this study was to investigate the relationship between students characteristic and online learning behavior. Based on the learning data from the courses offered by Chongqing E-learning Academy for Leadership platform, this study analyzed the differences of cadres' learning behavior from nine aspects: learners' age, gender, rank, unit, login times, studying times, learning completion, the correlation of the gender and rank between with the elective course, and the correlation of the age and rank between with the elective course. The results showed that the login times and the learning times are related with the month, the completion rate is related with the units and the average number of elective courses are relate with the gender and rank.
随着在线教育的快速发展，各种在线学习平台产生了大量的数据，这些数据为学习行为的定量分析提供了依据。摘要本研究旨在探讨学生特质与网络学习行为的关系。本研究基于重庆E-learning Academy for Leadership平台提供的课程学习数据，从学习者的年龄、性别、职级、单位、登录次数、学习次数、学习完成情况、性别、职级之间与选修课程的相关关系、年龄、职级之间与选修课程的相关关系等9个方面分析干部学习行为的差异。结果表明:登录次数、学习次数与月份相关，完成率与单位相关，平均选修课程数与性别、等级相关。
{"title":"Learning behavior analysis and prediction based on e-learning platform data","authors":"Qianguo Chen","doi":"10.1109/ICCT.2017.8359985","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359985","url":null,"abstract":"With the rapid development of the online education, various E-learning platform have generated tremendous amount of data, which provide the basis for quantitative analysis of learning behavior. The purpose of this study was to investigate the relationship between students characteristic and online learning behavior. Based on the learning data from the courses offered by Chongqing E-learning Academy for Leadership platform, this study analyzed the differences of cadres' learning behavior from nine aspects: learners' age, gender, rank, unit, login times, studying times, learning completion, the correlation of the gender and rank between with the elective course, and the correlation of the age and rank between with the elective course. The results showed that the login times and the learning times are related with the month, the completion rate is related with the units and the average number of elective courses are relate with the gender and rank.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116530235","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}
Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359617
Suwen Song, Jun Lin, Jing Tian, Zhongfeng Wang
Non-binary low-density parity-check (NB-LDPC) codes perform much better than their binary counterparts, when codeword length is moderate or high-order modulation is used. However, the implementation of a NB-LDPC decoder usually suffers from excessive hardware complexity and large memory requirement. Many new algorithms and decoding schedules have been introduced in recent literatures to reduce the decoding complexity in further. However, the complexity of current decoding algorithms for NB-LDPC codes is still high. In this paper, a two-extra-column trellis min-sum algorithm (TEC-TMSA) is proposed. The TEC-TMSA combines the two-extra-column method and the trellis min-sum algorithm in an intelligent way. Since only the minimum value of a row needs to be sorted out for configuration constructions, the computational complexity of the proposed TEC-TMSA is much lower than that of the TMSA. Furthermore, we develop a novel location-fixed selection scheme, which significantly decreases the number of required comparison operations in the TEC-TMSA with negligible performance loss.
{"title":"A reduced complexity decoding algorithm for NB-LDPC codes","authors":"Suwen Song, Jun Lin, Jing Tian, Zhongfeng Wang","doi":"10.1109/ICCT.2017.8359617","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359617","url":null,"abstract":"Non-binary low-density parity-check (NB-LDPC) codes perform much better than their binary counterparts, when codeword length is moderate or high-order modulation is used. However, the implementation of a NB-LDPC decoder usually suffers from excessive hardware complexity and large memory requirement. Many new algorithms and decoding schedules have been introduced in recent literatures to reduce the decoding complexity in further. However, the complexity of current decoding algorithms for NB-LDPC codes is still high. In this paper, a two-extra-column trellis min-sum algorithm (TEC-TMSA) is proposed. The TEC-TMSA combines the two-extra-column method and the trellis min-sum algorithm in an intelligent way. Since only the minimum value of a row needs to be sorted out for configuration constructions, the computational complexity of the proposed TEC-TMSA is much lower than that of the TMSA. Furthermore, we develop a novel location-fixed selection scheme, which significantly decreases the number of required comparison operations in the TEC-TMSA with negligible performance loss.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122288153","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}
Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359905
Elisee A. Kponou, Zhengning Wang, P. Wei, Min Wu
The outdoor images captured in bad weather are prone to yield low and poor visibility, which is a serious issue for most computer vision applications. The majorities of existing dehazing methods rely on the dark channel prior (DCP) assumption and therefore share two mains limitations; the model is invalid when the scene is intrinsically similar to the atmospheric light and the DCP method suffers from high computational cost to refine the transmission map. In this paper, we propose a fast single image dehazing based on color cube constraint based on new haze imaging model to overcome these two limitations. The thickness of the haze can be estimated effectively, and a haze-free image can be recovered by adopting the new method and the new haze imaging model. In this method, we first design a new haze imaging model which enables us to represent the hazy image inside a color cube according to the concentration of the haze. Then, to get an accurate value of the global atmospheric light we took the maximum value of each RGB color channel. Next, we propose a simple but very powerful prior or method called variation of distance prior (VOD), which is a statistic of extensive high resolution outdoor images. Using this prior combined with the designed haze imaging model and improved global atmospheric light, we can directly estimate the transmission map and restore a high quality outdoor haze-free image. The experimental results show that our model is physically valid, and the proposed method outperforms several state-of-the-art single image dehazing methods in terms of effectiveness robustness and speed.
{"title":"Fast single image dehazing based on color cube constraint","authors":"Elisee A. Kponou, Zhengning Wang, P. Wei, Min Wu","doi":"10.1109/ICCT.2017.8359905","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359905","url":null,"abstract":"The outdoor images captured in bad weather are prone to yield low and poor visibility, which is a serious issue for most computer vision applications. The majorities of existing dehazing methods rely on the dark channel prior (DCP) assumption and therefore share two mains limitations; the model is invalid when the scene is intrinsically similar to the atmospheric light and the DCP method suffers from high computational cost to refine the transmission map. In this paper, we propose a fast single image dehazing based on color cube constraint based on new haze imaging model to overcome these two limitations. The thickness of the haze can be estimated effectively, and a haze-free image can be recovered by adopting the new method and the new haze imaging model. In this method, we first design a new haze imaging model which enables us to represent the hazy image inside a color cube according to the concentration of the haze. Then, to get an accurate value of the global atmospheric light we took the maximum value of each RGB color channel. Next, we propose a simple but very powerful prior or method called variation of distance prior (VOD), which is a statistic of extensive high resolution outdoor images. Using this prior combined with the designed haze imaging model and improved global atmospheric light, we can directly estimate the transmission map and restore a high quality outdoor haze-free image. The experimental results show that our model is physically valid, and the proposed method outperforms several state-of-the-art single image dehazing methods in terms of effectiveness robustness and speed.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122675138","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}
Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359927
Hui Ma, Deyuan Chen, Can Zhang
Following the directions of Shannon's duality of source coding and channel coding, source polar codes have been found and proven to be a rate distortion achievable lossy source codes. Nowadays, research of these codes which are developed from channel codes is still in the stage of theoretical simulation, and there is not specific application being found. Based on the excellent rate distortion performance of source polar codes, we propose a novel embedded zerotrees wavelet image coding method using source polar codes creatively in this paper, which is called PC-EZW (Polar Coded — Embedded Zerotrees Wavelet). PC — EZW could realize a rate-distortion controllable lossy image compression, and the experiments show that PC-EZW has higher coding speed, less storage budget and scan times than EZW (Embedded Zerotrees Wavelet) in some standard test images. At the same time, PC-EZW offers the possibility of parallel process of lowpass subband and highpass subband.
{"title":"Embedded zerotrees wavelet image coding using source polar codes","authors":"Hui Ma, Deyuan Chen, Can Zhang","doi":"10.1109/ICCT.2017.8359927","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359927","url":null,"abstract":"Following the directions of Shannon's duality of source coding and channel coding, source polar codes have been found and proven to be a rate distortion achievable lossy source codes. Nowadays, research of these codes which are developed from channel codes is still in the stage of theoretical simulation, and there is not specific application being found. Based on the excellent rate distortion performance of source polar codes, we propose a novel embedded zerotrees wavelet image coding method using source polar codes creatively in this paper, which is called PC-EZW (Polar Coded — Embedded Zerotrees Wavelet). PC — EZW could realize a rate-distortion controllable lossy image compression, and the experiments show that PC-EZW has higher coding speed, less storage budget and scan times than EZW (Embedded Zerotrees Wavelet) in some standard test images. At the same time, PC-EZW offers the possibility of parallel process of lowpass subband and highpass subband.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128542484","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}
Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359684
Yan Ma, Meng Wu
In recent years, millimeter wave communication technology has entered a period of rapid development, design framework of millimeter wave mobile communication system which combined large-scale antenna array and beamforming has been continuously strengthened. From the point of view of physical layer security, this paper analyzes the propagation characteristics, channel parameters and channel model of millimeter wave, and probes into the problem of passive eavesdropper in MISO communication scene. The main work includes: firstly, introduce the multipath propagation characteristics of millimeter wave, using beamforming and artificial noise broadcasting as a secure transmission mechanism. Secondly, a power allocation strategy based on artificial noise under the condition of inaccurate CSI is proposed to meet the QoSs (service quality requirement) constraints both at destination and eavesdropper so as to guarantee target secrecy probability. Both power constrained and power unconstrained systems are considered. The simulation results show that the outage probability-based method is simpler and more efficient than the existing second — order-statistic-based method.
{"title":"Research on outage probability based power allocation method in millimeter wave system","authors":"Yan Ma, Meng Wu","doi":"10.1109/ICCT.2017.8359684","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359684","url":null,"abstract":"In recent years, millimeter wave communication technology has entered a period of rapid development, design framework of millimeter wave mobile communication system which combined large-scale antenna array and beamforming has been continuously strengthened. From the point of view of physical layer security, this paper analyzes the propagation characteristics, channel parameters and channel model of millimeter wave, and probes into the problem of passive eavesdropper in MISO communication scene. The main work includes: firstly, introduce the multipath propagation characteristics of millimeter wave, using beamforming and artificial noise broadcasting as a secure transmission mechanism. Secondly, a power allocation strategy based on artificial noise under the condition of inaccurate CSI is proposed to meet the QoSs (service quality requirement) constraints both at destination and eavesdropper so as to guarantee target secrecy probability. Both power constrained and power unconstrained systems are considered. The simulation results show that the outage probability-based method is simpler and more efficient than the existing second — order-statistic-based method.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128658339","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}
Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359680
Jiaxun Zhang, Yiou Chen, Rui Xiao, X. Ling
The intra-chip communication latency and power consumption become the main bottleneck of the development of multi-core processors. Network-on-Chip (NoC) paradigm is proposed to meet these stringent requirements. Since the wireless network interconnection can achieve high speed data transmission with low power consumption, this paper proposes a cellular NoC architecture based on multiple butterfly network coding clusters with low latency. Data packets and control packets are transmitted on the wireless channel and the wired channel, separately. We also design a Z-X-Y path routing algorithm to achieve the shortest routing. Experiment results prove that, compared with Mesh, the proposed architecture can achieve at least 8% average latency reduction with slight resource increment.
{"title":"A cellular NoC architecture based on butterfly network coding (CBNoC)","authors":"Jiaxun Zhang, Yiou Chen, Rui Xiao, X. Ling","doi":"10.1109/ICCT.2017.8359680","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359680","url":null,"abstract":"The intra-chip communication latency and power consumption become the main bottleneck of the development of multi-core processors. Network-on-Chip (NoC) paradigm is proposed to meet these stringent requirements. Since the wireless network interconnection can achieve high speed data transmission with low power consumption, this paper proposes a cellular NoC architecture based on multiple butterfly network coding clusters with low latency. Data packets and control packets are transmitted on the wireless channel and the wired channel, separately. We also design a Z-X-Y path routing algorithm to achieve the shortest routing. Experiment results prove that, compared with Mesh, the proposed architecture can achieve at least 8% average latency reduction with slight resource increment.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129733060","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}
Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359814
Sen Zhang, Jinbiao Guo, Zhen Tian
In this paper, a new underwater navigation system based multi-orthogonal signals is proposed. The principle of the system is presented, including waveform design method and position calculation method. Then the system design is descripted, which is composed of a transmit beacon and a receiver. The performance of the proposed system is verified through the lake trial. It is shown that the proposed system can obtain high positioning accuracy up to 0.26% slant range.
{"title":"An underwater navigation system based on multi-orthogonal signals and its lake trial","authors":"Sen Zhang, Jinbiao Guo, Zhen Tian","doi":"10.1109/ICCT.2017.8359814","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359814","url":null,"abstract":"In this paper, a new underwater navigation system based multi-orthogonal signals is proposed. The principle of the system is presented, including waveform design method and position calculation method. Then the system design is descripted, which is composed of a transmit beacon and a receiver. The performance of the proposed system is verified through the lake trial. It is shown that the proposed system can obtain high positioning accuracy up to 0.26% slant range.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129913805","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}
Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359827
Wen-jie Jiang, Ming-zhu Zhou, G. Su, Jun Liu, Rui Lin, Yong-ming Liang
This paper presents a type of frequency doubler with a single transistor designed with 0.5 um lnP HBT process. The frequency doubler employs LC circuit to achieve input and output impedance matching. At the emitter of the transistor, a λ/4@2f0 transmission line is connected to increase the output power. The input power of the frequency doubler is 5 dBm. In the output frequency range of 50 ∼ 86 GHz, the small signal gain S21 is stabilized at −5.2 dB, the fundamental suppression is greater than 13 dBc, and the total area of the layout is 0.265 mm2. The power supply voltage of the frequency doubler is 3 V and the DC power consumption is 6.27 mW.
{"title":"A design of frequency doubler based on 0.5um lnP HBT process","authors":"Wen-jie Jiang, Ming-zhu Zhou, G. Su, Jun Liu, Rui Lin, Yong-ming Liang","doi":"10.1109/ICCT.2017.8359827","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359827","url":null,"abstract":"This paper presents a type of frequency doubler with a single transistor designed with 0.5 um lnP HBT process. The frequency doubler employs LC circuit to achieve input and output impedance matching. At the emitter of the transistor, a λ/4@2f0 transmission line is connected to increase the output power. The input power of the frequency doubler is 5 dBm. In the output frequency range of 50 ∼ 86 GHz, the small signal gain S21 is stabilized at −5.2 dB, the fundamental suppression is greater than 13 dBc, and the total area of the layout is 0.265 mm2. The power supply voltage of the frequency doubler is 3 V and the DC power consumption is 6.27 mW.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"78 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123643564","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}
Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359868
Feng Bao, Hu Yang, Li Yang, Ma Tao
The electrical wireless network build 4G TD-LTE network in 1.8GHz band, orthogonal frequency division multiplexing (OFDM) and multiple input multiple output (MIMO) are the key technologies. The OFDM system is sensitive to carrier frequency offset (CFO) and hence accurate CFO estimates for the OFDM system are essential. In this paper, we study the problem of carrier frequency offset (CFO) in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems, and then a multi-invariance PM algorithm is proposed to estimate CFO in MIMO-OFDM system. The proposed algorithm employs the property of multi-invariance. Simulations show that the proposed algorithm has a better CFO estimation performance than PM.
{"title":"Multi-invariance propagator method-based carrier synchronization for MIMO-OFDM electrical special network","authors":"Feng Bao, Hu Yang, Li Yang, Ma Tao","doi":"10.1109/ICCT.2017.8359868","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359868","url":null,"abstract":"The electrical wireless network build 4G TD-LTE network in 1.8GHz band, orthogonal frequency division multiplexing (OFDM) and multiple input multiple output (MIMO) are the key technologies. The OFDM system is sensitive to carrier frequency offset (CFO) and hence accurate CFO estimates for the OFDM system are essential. In this paper, we study the problem of carrier frequency offset (CFO) in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems, and then a multi-invariance PM algorithm is proposed to estimate CFO in MIMO-OFDM system. The proposed algorithm employs the property of multi-invariance. Simulations show that the proposed algorithm has a better CFO estimation performance than PM.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116281415","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}
Pub Date : 2017-10-01DOI: 10.1109/ICCT.2017.8359757
Xucheng Zhu, Xin Liu, Yuhua Xu, Yuli Zhang, Lang Ruan, Yang Yang
In this paper the spectrum access problem in dynamic D2D networks is researched based on the hypergraph game solution. The traditional binary graph based interference model cannot describe the cumulative interference relations, which are common in D2D networks. Therefore, we use the hypergraph model to depict the complex interference among the low powered and densely located D2D pairs. Consider the dynamic nature of the D2D communication, each D2D pair may frequently change between the active and silent state. Therefore, the network topology changes dynamically according to the combination of active D2D pairs. In order to reduce the cost and the delay caused by frequently updating access policies, we make the allocation of spectrum access aiming at optimizing the expectation of long-term network performance. We formulate the spectrum access problem as a local congestion game to minimize the expectation of the MAC layer interference level, which can consequently optimize the network performance. Afterwards, a distributed learning algorithm was used to search the pure strategy Nash equilibrium of the game. The simulation results validate the superiority of the hypergraph game solution.
{"title":"Dynamic spectrum access for D2D networks: A hypergraph game approach","authors":"Xucheng Zhu, Xin Liu, Yuhua Xu, Yuli Zhang, Lang Ruan, Yang Yang","doi":"10.1109/ICCT.2017.8359757","DOIUrl":"https://doi.org/10.1109/ICCT.2017.8359757","url":null,"abstract":"In this paper the spectrum access problem in dynamic D2D networks is researched based on the hypergraph game solution. The traditional binary graph based interference model cannot describe the cumulative interference relations, which are common in D2D networks. Therefore, we use the hypergraph model to depict the complex interference among the low powered and densely located D2D pairs. Consider the dynamic nature of the D2D communication, each D2D pair may frequently change between the active and silent state. Therefore, the network topology changes dynamically according to the combination of active D2D pairs. In order to reduce the cost and the delay caused by frequently updating access policies, we make the allocation of spectrum access aiming at optimizing the expectation of long-term network performance. We formulate the spectrum access problem as a local congestion game to minimize the expectation of the MAC layer interference level, which can consequently optimize the network performance. Afterwards, a distributed learning algorithm was used to search the pure strategy Nash equilibrium of the game. The simulation results validate the superiority of the hypergraph game solution.","PeriodicalId":199874,"journal":{"name":"2017 IEEE 17th International Conference on Communication Technology (ICCT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121470758","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}
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