2010 European Wireless Conference (EW)最新文献_第3页

NGMN (r)evolution of mobile radio networks 移动无线网络的NGMN (r)演进

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483514

M. Siebert, Zhongrong Liu

引用次数: 0

Maximizing throughput in MIMO networks with variable rate streams 在具有可变速率流的MIMO网络中最大化吞吐量

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483484

R. Srinivasan, D. Blough, Luis Miguel Cortés-Peña, P. Santi

{"title":"Maximizing throughput in MIMO networks with variable rate streams","authors":"R. Srinivasan, D. Blough, Luis Miguel Cortés-Peña, P. Santi","doi":"10.1109/EW.2010.5483484","DOIUrl":"https://doi.org/10.1109/EW.2010.5483484","url":null,"abstract":"The problem that we consider is that of maximizing throughput in a MIMO network while accounting for variable rate streams on MIMO links. The stream rates on a link depend on the channel conditions of the link, and the manner in which the diversity-multiplexing tradeoff is handled. In this work, we use the dependence of stream rates on the channel to develop methods of link selection and stream allocation that approximately maximize the aggregate throughput. Maximizing throughput is closely tied to the problem of allocating streams based on the stream rates of the selected links. Doing this optimally is very complex even for networks with 10 or fewer links. We develop a stream allocation heuristic that approximately maximizes the throughput over a given set of links. Simulation results for single collision domain networks show that our stream allocation heuristic is within 7% of optimal in networks with up to 10 links (in a typical case where the maximum concurrency allowed is 15 links). The algorithm also cuts the difference between heuristic and optimal results in half, compared to a simple greedy algorithm. Our research has also identified the feasibility checking problem for general MIMO networks as being a computationally hard problem. However, we also identify several practical special cases, e.g. when interference suppression is done only at the receiver side, for which feasibility checking remains a polynomial-time operation.","PeriodicalId":232165,"journal":{"name":"2010 European Wireless Conference (EW)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128363306","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: 13

Randomized scheduling algorithm for data aggregation in wireless sensor networks 无线传感器网络中数据聚合的随机调度算法

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483392

Mario O. Diaz, K. Leung

引用次数: 8

Radio resource management for MIMO-OFDMA access in Rayleigh fading channel 瑞利衰落信道中MIMO-OFDMA接入的无线电资源管理

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483426

A. Mráz, Tamás Zámbó, S. Imre

引用次数: 8

LTE-Advanced: Heterogeneous networks LTE-Advanced:异构网络

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483516

A. Khandekar, N. Bhushan, T. Ji, V. Vanghi

{"title":"LTE-Advanced: Heterogeneous networks","authors":"A. Khandekar, N. Bhushan, T. Ji, V. Vanghi","doi":"10.1109/EW.2010.5483516","DOIUrl":"https://doi.org/10.1109/EW.2010.5483516","url":null,"abstract":"Long-Term Evolution (LTE) allows operators to use new and wider spectrum and complements 3G networks with higher data rates, lower latency and a flat IP-based architecture. To further improve broadband user experience in a ubiquitous and cost effective manner, 3GPP has been working on various aspects in the framework of LTE Advanced. Since radio link performance is approaching theoretical limits with 3G enhancements and LTE, the next performance leap in wireless networks will come from the network topology. LTE Advanced is about improving spectral efficiency per unit area. Using a mix of macro, pico, femto and relay base-stations, heterogeneous networks enable flexible and low-cost deployments and provide a uniform broadband experience to users anywhere in the network. This paper discusses the need for an alternative deployment model or topology using heterogeneous networks. To enhance the performance of these networks, advanced techniques are described which are needed to manage and control interference and deliver the full benefits of such networks. Range extension allows more user terminals to benefit directly from low-power base-stations such as picos, femtos, and relays. Adaptive inter-cell interference coordination provides smart resource allocation amongst interfering cells and improves inter-cell fairness in a heterogeneous network. In addition, the performance gains with heterogeneous networks using an example macro/pico network are shown.","PeriodicalId":232165,"journal":{"name":"2010 European Wireless Conference (EW)","volume":"119 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130131865","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: 507

Load adaptive power control in LTE Uplink LTE上行链路负载自适应功率控制

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483432

Malek Boussif, C. Rosa, J. Wigard, R. Müllner

引用次数: 40

ADNL: Accurate distributed node localization algorithm in Wireless Sensor Networks 无线传感器网络中的精确分布式节点定位算法

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483437

Julien Champ, Vincent Boudet

引用次数: 5

Enhanced base station assignment approach for coping with backhaul constraints in OFDMA-based cellular networks 基于ofdma的蜂窝网络中应对回程约束的增强基站分配方法

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483425

Hiram Galeana, R. Ferrús

引用次数: 2

Effective scheduling of real-time traffic in HSUPA HSUPA中实时交通的有效调度

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483474

M. Andreozzi, G. Stea

引用次数: 0

Universal pricing mechanism for utility maximization for interference coupled systems 干扰耦合系统效用最大化的通用定价机制

2010 European Wireless Conference (EW) Pub Date : 2010-04-12 DOI: 10.1109/EW.2010.5483456

H. Boche, S. Naik, T. Alpcan

引用次数: 9