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2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)最新文献

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Distributed learning of equilibria for a stochastic game on interference channels 干扰信道上随机博弈均衡的分布式学习
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227118
A. KrishnaChaitanya, V. Sharma, U. Mukherji
{"title":"Distributed learning of equilibria for a stochastic game on interference channels","authors":"A. KrishnaChaitanya, V. Sharma, U. Mukherji","doi":"10.1109/SPAWC.2015.7227118","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227118","url":null,"abstract":"We consider a wireless communication system in which N transmitter-receiver pairs want to communicate with each other. Each transmitter transmits data at a certain rate using a power that depends on the channel gain to its receiver. If a receiver can successfully receive the message, it sends an acknowledgement (ACK), else it sends a negative ACK (NACK). Each user aims to maximize its probability of successful transmission. We formulate this problem as a stochastic game and propose a fully distributed learning algorithm to find a correlated equilibrium (CE). We also propose a fully distributed learning algorithm to find a Pareto optimal solution, and we compare the utilities of each user at the CE and the Pareto point and also with some other well known recent algorithms.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130531075","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: 6
Subspace-constrained SINR optimization in MIMO full-duplex relays under limited dynamic range 受限动态范围下MIMO全双工中继子空间约束SINR优化
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227044
Emilio Antonio-Rodriguez, Roberto López-Valcarce, T. Riihonen, S. Werner, R. Wichman
{"title":"Subspace-constrained SINR optimization in MIMO full-duplex relays under limited dynamic range","authors":"Emilio Antonio-Rodriguez, Roberto López-Valcarce, T. Riihonen, S. Werner, R. Wichman","doi":"10.1109/SPAWC.2015.7227044","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227044","url":null,"abstract":"In this paper, we propose a method for maximizing the signal-to-interference-plus-noise ratio (SINR) in a wideband full-duplex MIMO regenerative relay that accounts limited dynamic range of the receiver and transmitter impairments. Transmit and receive filters are designed at the relay, by means of an alternating minimization algorithm, to minimize the interference at the decoder input in the destination node. We impose channel shortening and subspace constraints to ensure that the received signal at the destination is not compromised. Simulation results show that the presented method significantly outperforms other constrained approaches.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130785803","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: 14
Secrecy and energy efficiency in MIMO-ME systems MIMO-ME系统的保密性和能源效率
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227064
A. Zappone, Pin-Hsun Lin, Eduard Axel Jorswieck
{"title":"Secrecy and energy efficiency in MIMO-ME systems","authors":"A. Zappone, Pin-Hsun Lin, Eduard Axel Jorswieck","doi":"10.1109/SPAWC.2015.7227064","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227064","url":null,"abstract":"The problem of resource allocation for energy-efficient secure communications in multiple input multiple output multiple-antenna eavesdropper (MIMO-ME) systems is investigated. Unlike most papers dealing with physical layer security, in this paper the goal of the resource allocation process is not only to maximize the secrecy capacity, but also the system secrecy energy efficiency (SEE), defined as the ratio between the secrecy capacity and the total consumed power and thus measured in bit/Joule, which represents the amount of information bits that can be reliably and securely transmitted per Joule of consumed energy. The energy-efficient resource allocation problem is studied considering both perfect and statistical channel state information (CSI) as to the channel from the legitimate transmitter to the eavesdropper.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123002668","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: 12
Waveform optimization using trapezoidal pulses for 5G random access with short message support 支持短报文的5G随机接入的梯形脉冲波形优化
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227003
G. Wunder, Saeed Afrasiabi Gorgani, Sofiane S. Ahmed
{"title":"Waveform optimization using trapezoidal pulses for 5G random access with short message support","authors":"G. Wunder, Saeed Afrasiabi Gorgani, Sofiane S. Ahmed","doi":"10.1109/SPAWC.2015.7227003","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227003","url":null,"abstract":"It is well-known that sporadic traffic will be an increasing demand in the 5G market. Obviously, bulky synchronization procedure of the current 4G LTE cellular systems is not a viable option. Transmission of control signaling and payload “in one shot” in physical layer random access channel is an interesting direction. A major challenge is to cope with highly asynchronous access as well as high carrier frequency offsets of low-cost IoT devices. We address this challenge by using a waveform design approach based on a (tail-biting) bi-orthogonal frequency division multiplexing approach (at non-critical density). More specifically, we introduce a 2-parameter trapezoidal pulse family and investigate their properties both by analysis and simulations. In particular, we reveal surprising favorable properties like excellent time domain localization measured in terms of their L1-norm and relate this to “extreme” cases like the triangle pulse and the sinc pulse which appear as special cases of the trapezoidal family.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116700712","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: 8
Near-optimum power control for two-tier SIMO uplink under power and interference constraints 功率和干扰约束下两层SIMO上行链路的近最优功率控制
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227117
Baris Yuksekkaya, Hazer Inaltekin, C. Toker, H. Yanikomeroglu
{"title":"Near-optimum power control for two-tier SIMO uplink under power and interference constraints","authors":"Baris Yuksekkaya, Hazer Inaltekin, C. Toker, H. Yanikomeroglu","doi":"10.1109/SPAWC.2015.7227117","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227117","url":null,"abstract":"This paper considers optimization of transmit power allocation in a two-tier single input multiple output uplink network. The proposed system model is general enough to cover both emerging heterogeneous network (HetNet) architectures and cognitive radio (CR) networks. The first tier, which is assumed to have one user, represents a macrocell (or a primary user network) and the second tier represents a femtocell (or a secondary user network) in a HetNet (or a CR network). Second tier users share the same resources with the first tier user and they form a single input multiple output multiple access channel to their intended base station while causing interference to the first tier user. Near-optimum allocation of transmission powers maximizing the aggregate communication rate under individual transmission power constraints and a constraint on the total interference power at the first tier user is obtained by considering low-complexity signal decoders without interference cancelation at the second tier base station. It is shown that the power allocation is a modified version of the classical water-filling algorithm.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115156900","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
Minimizing the routing delay in cognitive radios using potential fields 利用势场最小化认知无线电中的路由延迟
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227113
J. Oksanen, Brett Kaufman, V. Koivunen, H. Poor
{"title":"Minimizing the routing delay in cognitive radios using potential fields","authors":"J. Oksanen, Brett Kaufman, V. Koivunen, H. Poor","doi":"10.1109/SPAWC.2015.7227113","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227113","url":null,"abstract":"In this paper a novel delay aware potential field based routing is proposed for cognitive radio. The proposed methods are inspired by potential field techniques applied in robot navigation. The novelty of the proposed methods arises from identifying the analogy between packet routing in wireless networks and obstacle avoidance in robot navigation. This allows for the modeling of desired communication destinations as attractive forces and sources of interference as repulsive forces, that guide the packet towards the destination while avoiding interference. The packets are routed along the potential induced by these forces towards the destination. In this paper we focus on minimizing the route delay, but other routing metrics such as energy could be used as well. It is shown that the proposed delay aware potential field based routing method can significantly reduce the average route delay while ensuring that the interference induced remains in tolerable levels. Furthermore, it is shown via simulations that a suboptimal but computationally simpler one-iteration version of the optimal potential field can achieve delay performance that is close to optimum. The simulation results also illustrate that by knowing (or by spending some resources in finding out) the PU receiver location can significantly reduce the average delay.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132728164","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
A scalable performance-complexity tradeoff for vector precoding by partial perturbation 基于部分扰动的矢量预编码的可扩展性能复杂度权衡
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227103
C. Masouros, T. Ratnarajah, M. Sellathurai
{"title":"A scalable performance-complexity tradeoff for vector precoding by partial perturbation","authors":"C. Masouros, T. Ratnarajah, M. Sellathurai","doi":"10.1109/SPAWC.2015.7227103","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227103","url":null,"abstract":"We explore a performance-complexity tradeoff for vector precoding (VP) for the downlink of multi-user multiple input multiple output (MU-MIMO) systems. We introduce this tradeoff by employing a partial perturbation in the vector precoding, where the perturbation optimization is applied to a subset of the transmitted symbols. This greatly reduces complexity compared to conventional VP where the optimization involves all transmit symbols, at the expense of a reduced performance. We show that this tradeoff is scalable by means of the number of users to be perturbed and explore how it can be optimized by changing the size of this subset of users. The presented results show that partially perturbing the data provides a favorable performance-complexity tradeoff compared to conventional VP and increases the power efficiency of VP.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"252 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132814705","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
Velocity-assisted multidimensional scaling 速度辅助的多维缩放
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227102
Sandeep Kumar, K. Rajawat
{"title":"Velocity-assisted multidimensional scaling","authors":"Sandeep Kumar, K. Rajawat","doi":"10.1109/SPAWC.2015.7227102","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227102","url":null,"abstract":"This paper considers the problem of cooperative localization in mobile networks. In static networks, node locations can be obtained from pairwise distance measurements using the classical multidimensional scaling (MDS) approach. This paper introduces a modified MDS framework that also incorporates relative velocity measurements available in mobile networks. The proposed cost function is minimized via a provably convergent, low complexity majorization algorithm similar to SMACOF. The algorithm incurs low computational and communication cost, and allows practical constraints such as missing measurements and variable node velocities. Simulation results corroborate the performance gains obtained by the proposed algorithm over state-of-the-art localization algorithms.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134583687","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
Quantization of compressed sensing measurements using Analysis-by-Synthesis with Bayesian-optimal Approximate Message Passing 基于贝叶斯最优近似消息传递的综合分析压缩感知测量量化
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227090
O. Musa, N. Goertz
{"title":"Quantization of compressed sensing measurements using Analysis-by-Synthesis with Bayesian-optimal Approximate Message Passing","authors":"O. Musa, N. Goertz","doi":"10.1109/SPAWC.2015.7227090","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227090","url":null,"abstract":"Compressed sensing allows for stable reconstruction of sparse source vectors from noisy, linear measurement vectors of much lower dimension than the source vectors. In many applications, low-bit rate quantization is unavoidable or even desired in further processing of the signal, and suitable algorithms need to be developed for minimizing negative effects on the recovered source signal due to the quantization of the measurements. We present an Analysis-by-Synthesis (AbS) quantization scheme in which, as a novelty, Bayesian-optimal Approximate Message Passing (BAMP) is used as a reconstruction algorithm. The focus is on source signals that can be modeled by a linear combination of a discrete component and a zero-mean Gaussian component; for those signals suitable estimation functions are given for use in the BAMP algorithm. We investigate different setups of the AbS scheme with BAMP and compare the results with an AbS scheme known from the literature, in which Orthogonal Matching Pursuit is used as the reconstruction algorithm.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132517874","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
Direction finding by complex L1-principal-component analysis 复l1 -主成分分析测向
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) Pub Date : 2015-08-31 DOI: 10.1109/SPAWC.2015.7227083
N. Tsagkarakis, Panos P. Markopoulos, D. Pados
{"title":"Direction finding by complex L1-principal-component analysis","authors":"N. Tsagkarakis, Panos P. Markopoulos, D. Pados","doi":"10.1109/SPAWC.2015.7227083","DOIUrl":"https://doi.org/10.1109/SPAWC.2015.7227083","url":null,"abstract":"In the light of recent developments in optimal real L1-norm principal-component analysis (PCA), we provide the first algorithm in the literature to carry out L1-PCA of complex-valued data. Then, we use this algorithm to develop a novel subspace-based direction-of-arrival (DoA) estimation method that is resistant to faulty measurements or jamming. As demonstrated by numerical experiments, the proposed algorithm is as effective as state-of-the-art L2-norm methods in clean-data environments and significantly superior when operating on corrupted data.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":"206 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132227117","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: 19
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