2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications最新文献_第7页

Resources Allocation Optimization for Scalable Multimedia Data Subject to Quality of Service Contraints 服务质量约束下可扩展多媒体数据的资源分配优化

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/SPAWC.2006.346429

H. Houas, C. Baras, I. Fijalkow

引用次数: 2

A Convex Optimization Approach for the Robust Design of Multiuser and Multiantenna Downlink Communication Systems 多用户多天线下行通信系统鲁棒设计的凸优化方法

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/SPAWC.2006.346461

M. Payaró, A. Pascual-Iserte, Jinhong Yuan, M. Lagunas

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引用次数: 6

A New Data-Aided Carrier Frequency Offset Estimation Algorithm for OFDM Systems 一种新的数据辅助OFDM系统载波频偏估计算法

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/SPAWC.2006.346457

A. Laourine, A. Stephenne, S. Affes

引用次数: 0

Maximizing the Capacity of Wireless Networks using Multi-Cell Access Schemes 利用多小区接入方案最大化无线网络的容量

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/SPAWC.2006.346472

J. Kirkebo, D. Gesbert, S. G. Kiani

引用次数: 6

Minimising Complexity in Iterative Multiuser Detection using Dynamic Decoding Schedules 利用动态解码调度最小化迭代多用户检测的复杂性

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/SPAWC.2006.346370

D. P. Shepherd, F. Brannstrom, Zhenning Shi, M. Reed

引用次数: 5

A Downlink Beamforming with SINR Balance in Frequency Selective Fading Environment 频率选择性衰落环境下SINR平衡的下行波束形成

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/SPAWC.2006.346482

Byungjin Chun

引用次数: 0

Zero-Forcing Precoding for the MIMO Broadcast Channel under Per-Antenna Power Constraints 天线功率约束下MIMO广播信道的强制零预编码

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/SPAWC.2006.346354

F. Boccardi, Howard Huang

{"title":"Zero-Forcing Precoding for the MIMO Broadcast Channel under Per-Antenna Power Constraints","authors":"F. Boccardi, Howard Huang","doi":"10.1109/SPAWC.2006.346354","DOIUrl":"https://doi.org/10.1109/SPAWC.2006.346354","url":null,"abstract":"We consider the downlink transmission of a wireless communication system where M antennas transmit independent information to a subset of K users, each equipped with a single antenna. The Shannon capacity of this MIMO broadcast channel (MIMO-BC) can be achieved using a non-linear preceding technique known as dirty paper coding (DPC) which is difficult to implement in practice. Motivated to study simpler transmission techniques, we focus on a linear precoding technique based on the zero-forcing (ZF) algorithm. In contrast to the typical sum power constraint (SPC), we consider a per-antenna power constraint (PAPC) motivated both by current antenna array designs where each antenna is powered by a separate amplifier and by future wireless networks where spatially separated antennas transmit cooperatively to users. We show that the problem of power allocation for maximizing the weighted sum rate under ZF with PAPC is a constrained convex optimization problem that can be solved using conventional numerical optimization techniques. For the special case of two users, we find an analytic solution based on waterfilling techniques. For the case where the number of users increases without bound, we show that ZF with PAPC is asymptotically optimal in the sense that the ratio of the expected sum-rate capacities between ZF with PAPC and DPC with SPC approaches one. We also show how the results can be generalized for multiple frequency bands and for a hybrid power constraint. Finally, we provide numerical results that show ZF with PAPC achieves a significant fraction of the optimum DPC sum-rate capacity in practical cases where K is bounded","PeriodicalId":414942,"journal":{"name":"2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121565265","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: 93

Optimal Superimposed Pilot Selection for OFDM Channel Estimation OFDM信道估计的最优叠加导频选择

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/spawc.2006.346490

A. Varma, C. Athaudage, L.L.H. Andrew, J. Manton

引用次数: 12

Blind Linearization of Nonlinear Channels using a Repetition/Modulation Precoder 使用重复/调制预编码器的非线性信道的盲线性化

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/SPAWC.2006.346442

A. Kibangou, G. Favier

引用次数: 1

UWB Search Strategies for Minimal-Length Preamble and a Low-Complexity Analog Receiver 最小长度前导和低复杂度模拟接收机的超宽带搜索策略

2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications Pub Date : 2006-07-02 DOI: 10.1109/SPAWC.2006.346356

C. Desset, M. Badaroglu, J. Ryckaert, B. van Poucke

引用次数: 15