2010 44th Annual Conference on Information Sciences and Systems (CISS)最新文献

Alternating cooperative transmissions for a strip-shaped sensor network 条形传感器网络的交替合作传输

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-05-13 DOI: 10.1109/CISS.2010.5464732

A. Kailas, M. A. Ingram

{"title":"Alternating cooperative transmissions for a strip-shaped sensor network","authors":"A. Kailas, M. A. Ingram","doi":"10.1109/CISS.2010.5464732","DOIUrl":"https://doi.org/10.1109/CISS.2010.5464732","url":null,"abstract":"We analyze a medium access control (MAC)-free ¿alternating sets¿ transmission strategy for a two-dimensional strip-shaped network. This may be viewed as a broadcast strategy if the entire network has a strip shape, or it may be viewed as a unicast strategy if there is a set of pre-designated cooperators along a conventional multi-hop route, which we refer to as a cooperative route. When there are repeated transmissions, the key advantage of the approach is that it drains the energies of the participating nodes uniformly and in an energy efficient fashion, thereby increasing the network longevity for energy constrained networks. The strategy is based on a very low-overhead form of cooperative diversity called the Opportunistic Large Array (OLA). In the initial transmission, an SNR (¿transmission¿) threshold is used to define mutually exclusive sets of nodes, such that the union of the sets includes all the nodes in the network or cooperative route. Only one of the sets is used for the first transmission. The next transmission uses the next set, and so on. In other words, for two sets, the proposed Alternating OLA with Transmission Threshold (A-OLA-T) basically alternates the transmitting set of nodes (or OLAs) during each transmission cycle. Previously, we analyzed A-OLA-T under the continuum assumption (very high node density) for disc-shaped networks. In this paper, we analyze the performance of the two-set A-OLA-T for strip-shaped networks.","PeriodicalId":118872,"journal":{"name":"2010 44th Annual Conference on Information Sciences and Systems (CISS)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134039833","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

Connectivity in random graphs induced by a key predistribution scheme - small key pools 由密钥预分配方案-小密钥池引起的随机图中的连通性

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-05-13 DOI: 10.1109/CISS.2010.5464934

Osman Yağan, A. Makowski

引用次数: 14

High-resolution 4-D imaging using fringe analysis 使用条纹分析的高分辨率4-D成像

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-05-13 DOI: 10.1109/CISS.2010.5464817

Nikolaus Karpinsky, Song Zhang

引用次数: 4

Message passing Bayesian Compressed Sensing for UWB pulse acquisition UWB脉冲采集的消息传递贝叶斯压缩感知

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-03-17 DOI: 10.1109/CISS.2010.5464905

Depeng Yang, Husheng Li, G. D. Peterson

引用次数: 0

Quality versus intelligibility: Evaluating the coding trade-offs for American Sign Language video 质量与可理解性:评估美国手语视频的编码权衡

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-03-17 DOI: 10.1109/CISS.2010.5464827

Frank M. Ciaramello, Jung Ko, S. Hemami

引用次数: 2

Enhancing the reliability of cognitive radio networks via channel assignment: risk analysis and redundancy allocation 通过信道分配提高认知无线网络的可靠性:风险分析和冗余分配

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-03-17 DOI: 10.1109/CISS.2010.5464726

Husheng Li, Lijun Qian

{"title":"Enhancing the reliability of cognitive radio networks via channel assignment: risk analysis and redundancy allocation","authors":"Husheng Li, Lijun Qian","doi":"10.1109/CISS.2010.5464726","DOIUrl":"https://doi.org/10.1109/CISS.2010.5464726","url":null,"abstract":"A key challenge in cognitive radio networks is the unreliability of cognitive radio links due to the interruptions from primary users. To enable reliable data transmission over cognitive radio networks, the large available bandwidth obtained from cognitive radio can be used to improve the system redundancy in order to guarantee the system reliability. Using the terminology in the theory of optimal reliability design in industrial engineering, a single path data flow can be considered as a parallel-series system, in which each cut set represents a secondary user and contains several assigned channels. A heuristic algorithm is proposed to assign the channels in the licensed spectrum band to different cut sets in the parallel-series system to minimize the overall risk. By adopting the concept of cut set hazard, the algorithm is applied in both single path and multiple path situations. It is also extended to the decentralized scenario. Channel reuse, which incurs the correlation of failures in the system, is also considered for the channel assignment. Simulation shows that the proposed algorithms can significantly improve the reliability of cognitive radio networks.","PeriodicalId":118872,"journal":{"name":"2010 44th Annual Conference on Information Sciences and Systems (CISS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125000636","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: 16

Adaptive beamforming in interference networks via bi-directional training 双向训练干扰网络中的自适应波束形成

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-03-17 DOI: 10.1109/CISS.2010.5464742

Changxin Shi, R. Berry, M. Honig

{"title":"Adaptive beamforming in interference networks via bi-directional training","authors":"Changxin Shi, R. Berry, M. Honig","doi":"10.1109/CISS.2010.5464742","DOIUrl":"https://doi.org/10.1109/CISS.2010.5464742","url":null,"abstract":"We study distributed algorithms for adjusting beamforming vectors and receiver filters in multiple-input multiple-output (MIMO) interference networks, with the assumption that each user uses a single beam and a linear filter at the receiver. In such a setting there have been several distributed algorithms studied for maximizing the sum-rate or sum-utility assuming perfect channel state information (CSI) at the transmitters and receivers. The focus of this paper is to study adaptive algorithms for time-varying channels, without assuming any CSI at the transmitters or receivers. Specifically, we consider an adaptive version of the recent Max-SINR algorithm for a time-division duplex system. This algorithm uses a period of bi-directional training followed by a block of data transmission. Training in the forward direction is sent using the current beam-formers and used to adapt the receive filters. Training in the reverse direction is sent using the current receive filters as beams and used to adapt the transmit beamformers. The adaptation of both receive filters and beamformers is done using a least-squares objective for the current block. In order to improve the performance when the training data is limited, we also consider using exponentially weighted data from previous blocks. Numerical results are presented that compare the performance of the algorithms in different settings.","PeriodicalId":118872,"journal":{"name":"2010 44th Annual Conference on Information Sciences and Systems (CISS)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125028589","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: 28

MIMO power strategies for limited transmitter CSI 有限发射机CSI的MIMO功率策略

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-03-17 DOI: 10.1109/CISS.2010.5464877

Yi-Lin Tsai, C. Rose

引用次数: 3

Seidel's legacy and the existence of complex equiangular Parseval frames Seidel的遗产和复杂等角Parseval框架的存在

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-03-17 DOI: 10.1109/CISS.2010.5464808

B. Bodmann, Helen J. Elwood

引用次数: 3

Optimal fusion scheme in wireless sensor networks under sum-rate capacity constraint 和速率容量约束下无线传感器网络的最优融合方案

2010 44th Annual Conference on Information Sciences and Systems (CISS) Pub Date : 2010-03-17 DOI: 10.1109/CISS.2010.5464969

Fang Yi, Y. Yi, Lingjia Liu

引用次数: 3