{"title":"Uplink dynamic resource sharing of underlaying D2D and cellular communications","authors":"Dan Wu, Yueming Cai, Jiannan Qi, J. Rodrigues","doi":"10.1109/WCSP.2014.6992180","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992180","url":null,"abstract":"In this work, we propose a dynamic distributed resource sharing scheme which jointly considers mode selection, resource allocation, and power control in a unified framework for general D2D communications. Specifically, we model the joint problem of mode selection and resource allocation as a hedonic coalition formation game, and develop a coalition formation process based on the switch rule. Through this process, each cellular user makes an individual decision to form a Nash-stable partition, while accounting for the tradeoff between the benefits in terms of available rate and the costs in terms of the mutual interference. Moreover, we view the members of each coalition as a whole, and formulate a power control optimization problem to share the aim of maximizing the sum-rate of cellular links in this coalition. In order to solve this non-convex and multi-variable optimization problem with the online operation, we present a power control process, which employs the local piecewise-linear approach to take a locally and separately approximate optimal outcome. Then, we develop a dynamic resource sharing algorithm which iteratively operates the coalition formation process and the power control process. It allows cellular users to adapt to environmental changes in a distributed manner.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134187080","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}
{"title":"Energy efficiency optimization in energy harvesting cooperative relay systems","authors":"Jing Zhao, Ming Zhao, Wuyang Zhou","doi":"10.1109/WCSP.2014.6992138","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992138","url":null,"abstract":"In future cellular systems, some energy harvesting (EH) powered relaying nodes may be deployed to achieve energy saving and quality of service (QoS) improvement, while base stations still get energy from power grid to ensure basic coverage requirements. In this paper, we focus on maximizing the energy efficiency (EE) of the non-EH source with the help of the EH decode-and-forward (DF) relaying nodes. Taking non-ideal circuit power into consideration, we first formulate the energy efficiency optimization problem of the relaying system and prove it is quasiconvex. And then we propose an energy-efficient transmission policy (EETP) with/without diversity by combining the power allocation and sleep mode in both the source and the relay. Numerical results show that the proposed scheme can help saving energy effectively while meeting the average throughput requirement.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"314 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132968932","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}
{"title":"Enhancing physical layer security through beamforming and noise injection","authors":"Hao Wang, Li Chen, Weidong Wang","doi":"10.1109/WCSP.2014.6992129","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992129","url":null,"abstract":"In this paper, we evaluate how much beamforming and noise injection can improve physical layer security by deriving the probability of non-zero secrecy capacity and the secrecy outage probability. Our model is a typical wiretap channel model, composed of three participants - the transmitter Alice, the legitimate receiver Bob and the eavesdropper Eve. A typical cellular scenario is considered where Alice has multiple antennas while Bob and Eve each have only one antenna (MISOSE). Beamforming and noise injection at Alice are applied to achieve a higher instantaneous signal-to-noise ratio (SNR) at Bob and a lower SNR at Eve. The probability density functions (pdf) of Bob and Eve's SNR are figured out in both noise-injection condition and injection-free condition, and we derive the closed-form expressions for the probability of non-zero secrecy capacity and the secrecy outage probability. Numerical analysis is also addressed using the two probabilities introduced above.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133400347","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}
{"title":"Energy-efficient dispatching policy for virus scanning as a service under N-version protection","authors":"Weiwen Zhang, Yonggang Wen","doi":"10.1109/WCSP.2014.6992028","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992028","url":null,"abstract":"We investigate energy-efficient dispatching policy for virus scanning as service (VSaaS) under N-version protection. Under N-version protection, one would dispatch a file-scan request to multiple service engines, in order to reduce the missed detection error cost. However, this also increases the energy consumption of service engines and the queueing delay. To manage this tradeoff, we aim to reduce the energy consumption of service engines and the missed detection error cost, while achieving low delay for VSaaS. We first define a penalty function as the combination of the energy consumption and the missed detection error cost. We then formulate the file-scan dispatching policy as a constrained optimization problem under the framework of Lyapunov optimization. Using the Lyapunov-drift-penalty function, we propose an online algorithm, which achieves the penalty function arbitrarily close to the minimum by increasing the control variable but at the cost of increasing the queue length. Simulation results indicate that the proposed algorithm is flexible to provide N-version protection. Using the algorithm, the cloud operator can dynamically tune the control variable in order to reduce the energy consumption and the missed detection error cost, while maintaining the queue stability.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121930650","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}
{"title":"Gibbs sampling based parameter estimation for RSC sub-codes of turbo codes","authors":"Peidong Yu, Jing Li, Hua Peng","doi":"10.1109/WCSP.2014.6992195","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992195","url":null,"abstract":"This paper deals with the Bayesian parameter estimation for recursive convolutional sub-codes of turbo codes. A Monte Carlo method named Gibbs sampling is employed for this problem. The involved conditional probabilities of the encoder coefficients and the coded sequences are derived. Simulation results show that the proposed algorithm improves the estimation accuracy substantially.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124972209","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}
{"title":"Energy-efficient cross-layer design of delay-aware MIMO systems","authors":"Kunlun Wang, Wen Chen, M. Tao","doi":"10.1109/WCSP.2014.6992139","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992139","url":null,"abstract":"In this paper, we propose a cross-layer design model for multiple input and multiple output (MIMO) cellular systems, to solve the problem of energy efficient communications with delay demand. We first investigate the energy efficient multiple quadrature amplitude modulation (MQAM) constellation size for each transmission stream. With the demand of the packet delay, then we propose an adaptive MIMO/SIMO transmission mode by exploiting the intrinsic relationship between the upper layer packet delay and the constellation size, the symbol error rate (SER) from the physical layer. Simulations show that in order to maximize the energy efficiency and offer different Quality of Service (QoS) of delay simultaneously, a user should adaptively choose the constellation size as well as the transmission mode. In this framework, the tradeoff between energy efficiency and delay demand are well demonstrated.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125123236","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}
{"title":"Energy efficient pico base station switching-on/off in heterogeneous cellular network with minimum rate requirement","authors":"Liang Dong, Gang Wu, Zhikun Xu, Shaoqian Li","doi":"10.1109/WCSP.2014.6992115","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992115","url":null,"abstract":"In this paper, we propose an algorithm that determines the optimal user equipment (UE) and base station (BS) association in heterogeneous cellular network, aiming at minimizing network energy consumption and avoiding frequent pico base station (PBS) mode switching, by taking into account the energy consumption of PBS switching-on/off operation. We first formulate the energy minimization problem into a combinatorial optimization problem, and then convert it to a linear programming problem to reduce the high computation complexity of exhaustive searching. Secondly, we propose a suboptimal algorithm to realize the PBS switching-on/off with the minimum data rate requirement of UEs, which can approach the exhaustive searching algorithm. Simulation results demonstrate that the proposed algorithm can considerably reduce the network energy consumption and thus improve the energy efficiency, compared with traditional approach. Furthermore, the proposed algorithm does not introduce frequent PBS mode switching, so that the total energy consumption is also reduced.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129930002","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}
{"title":"On the performance of full-duplex decode-and-forward relaying over Nakagami-m fading channels","authors":"Youyun Xu, Yurong Wang, Cong Wang, Kui Xu","doi":"10.1109/WCSP.2014.6992127","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992127","url":null,"abstract":"In this paper, we evaluate the outage probability and bit error rate (BER) performances of a three terminal full-duplex relaying (FDR) system with non-negligible residual self-interference (RSI). By investigating the signal-to-interference-plus-noise ratios (SINRs) at the relay and the destination respectively, the exact outage probability and BER of decode-and-forward (DF) based FDR system over Nakagami-m fading channels are derived in closed-form. Then we corroborate our theoretical analyses with simulations under different conditions. The outage probability and BER performances for traditional half-duplex relaying (HDR) system are also simulated for comparison. It is shown that the theoretical analysis results match the simulation results perfectly. Moreover, the FDR is shown to outperform HDR in outage performance significantly as the target rate increasing for a given residual self-interference power, while HDR outperforms FDR for small target rate. The FDR is superior to HDR in the outage and BER performances in the low and moderate signal-to-noise ratio (SNR) region, while the converse is true in the high SNR region.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130103883","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}
{"title":"The optimal energy allocation scheme for decision fusion in heterogeneous radar sensor networks","authors":"Yangyang Huo, Jing Liang","doi":"10.1109/WCSP.2014.6992148","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992148","url":null,"abstract":"Information fusion for target detection in heterogeneous radar sensor networks (HRSN) is an attractive research area. By considering the heterogeneity of HRSN that different local radar sensors have different detection performances, we propose a decision fusion algorithm using optimized energy allocation in this paper. Simulation results show that compared with equal energy allocation scheme, the optimized energy allocation algorithm can provide better performance. Particularly, without the statistical knowledge of noise, we can get better performance via optimizing the energy allocation than equal energy allocation with the statistical knowledge of noise. In addition, we also propose a decision fusion algorithm for multi-target detection. Although the algorithm is optimum, it requires the statistical knowledge of noise. In order to reduce the requirement, an alternative fusion scheme, namely, approximate likelihood rate for multiple targets (ALR-MT) is proposed, which is equivalent to the optimum fusion rule at low SNR. Performance analysis is presented through simulation and theoretical calculation.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127570768","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}
{"title":"Air targets recognition using a fuzzy logic approach","authors":"Fangqi Zhu, Jing Liang","doi":"10.1109/WCSP.2014.6992102","DOIUrl":"https://doi.org/10.1109/WCSP.2014.6992102","url":null,"abstract":"In this paper, a fuzzy logic approach (Type-1 Fuzzy Logic Classifier (T1FLC)) is proposed to improve flight recognition ratio. On a basis of measurements, we acquire the high range resolution profiles (HRRP) of three types of air targets, namely F-15, Tu-16 and AH-64. The length and the difference between the two adjacent HRRPS are extracted as two antecedents for the T1FLC. Gaussian membership functions (MFs) are compared with triangle and trapezoidal MFs for the target recognition performance at different constant false alarm rate (CFAR) and signal-to-noise ratio (SNR). Simulation results show that by combining various features of HRRP, our T1FLC can provide a high recognition ratio for different flight targets with robust performance to some extent.","PeriodicalId":412971,"journal":{"name":"2014 Sixth International Conference on Wireless Communications and Signal Processing (WCSP)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121148118","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}