2011 8th International Symposium on Wireless Communication Systems最新文献_第9页

Joint power allocation and receiver design for Distributed Space-Time Coded cooperative MIMO systems 分布式空时编码协同MIMO系统的联合功率分配与接收机设计

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125357

Tong Peng, R. D. Lamare, A. Schmeink

引用次数: 6

EDCA delay analysis of spatial diversity in IEEE 802.11-based real-time wireless sensor and actuator networks 基于IEEE 802.11的实时无线传感器和执行器网络空间分集的EDCA延迟分析

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125438

M. Maadani, S. Motamedi

引用次数: 13

Analytical upper bound on optimum joint decoding capacity of Wyner GCMAC using hadamard inequality 利用hadamard不等式分析Wyner GCMAC最优联合解码容量的上界

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125287

M. Z. Shakir, T. Durrani, Mohamed-Slim Alouini

引用次数: 0

Joint iterative power allocation and relay selection for cooperative MIMO systems using discrete stochastic algorithms 基于离散随机算法的协同MIMO系统联合迭代功率分配与中继选择

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125397

P. Clarke, R. D. Lamare

引用次数: 11

Efficient interference mitigating strategies for two-way relay channels 双向中继信道的有效干扰抑制策略

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125439

Agisilaos Papadogiannis, A. Burr, M. Tao

{"title":"Efficient interference mitigating strategies for two-way relay channels","authors":"Agisilaos Papadogiannis, A. Burr, M. Tao","doi":"10.1109/ISWCS.2011.6125439","DOIUrl":"https://doi.org/10.1109/ISWCS.2011.6125439","url":null,"abstract":"Hierarchical wireless networks have the potential to provide the needed capacity to a large number of mobile stations (MSs). According to this system architecture, the MSs are served by a dense network of fixed relay nodes (RNs) fed by a small number of large hub base stations (HBSs). In such deployment, high spectral efficiencies can be achieved if the RNs act as two-way relays; however this gives rise to co-channel interference (CCI) which needs to be mitigated. In order to gain insights on the impact of CCI to this scenario we consider an HBS with two highly directional antennas communicating with two MSs via two interfering two-way RNs. We investigate the average maximum sum-rate of two cooperative strategies. The first is based on Decode-and-Forward (DF) and network coding and acts as a baseline. The second strategy is based on Amplify-and-Forward (AF) and Network MIMO processing over both the backhaul and access channels. Furthermore we devise some cooperative protocols that utilize two, three or four time slots. It is shown that the 2-slot schemes perform generally better and that the DF strategy achieves superior performance when CCI is low while AF with Network MIMO is superior when CCI is high.","PeriodicalId":414065,"journal":{"name":"2011 8th International Symposium on Wireless Communication Systems","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125647450","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: 2

Performance comparison of training sequences for power amplifier linearization systems 功率放大器线性化系统训练序列的性能比较

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125299

Leticia Aladren, P. G. Ducar, J. D. Mingo, P. L. Carro, César Sánchéz-Perez

引用次数: 0

Interference mitigation via successive cancellation in heterogeneous networks 异构网络中通过逐次消去的干扰缓解

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125368

O. Sahin, Jialing Li, Yingxue Li, P. Pietraski

引用次数: 5

A hybrid centralized-decentralized resource allocation scheme for two-hop transmission 一种用于两跳传输的集中式和分散式混合资源分配方案

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125317

S. Maghsudi, S. Stańczak

引用次数: 4

Heterogeneous networks in LTE-Advanced LTE-Advanced的异构网络

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125332

S. Brueck

{"title":"Heterogeneous networks in LTE-Advanced","authors":"S. Brueck","doi":"10.1109/ISWCS.2011.6125332","DOIUrl":"https://doi.org/10.1109/ISWCS.2011.6125332","url":null,"abstract":"3GPP 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 the broadband user experience in an ubiquitous and cost-effective manner, 3GPP has been working on various aspects of LTE-Advanced. Since radio link performance is quickly approaching theoretical limits with 3G enhancements and LTE, the next performance leap will come from an evolved network topology. This paper discusses the need for an alternative deployment model and topology using heterogeneous networks. The concept of LTE-Advanced based heterogeneous networks is about improving spectral efficiency per unit area. Using a mix of macro, pico, femto and relay cells, heterogeneous networks enable flexible and low-cost deployments and provide a uniform broadband experience. 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. These techniques include cell range expansion, adaptive inter cell interference coordination and interference cancellation receivers.","PeriodicalId":414065,"journal":{"name":"2011 8th International Symposium on Wireless Communication Systems","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124751939","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: 63

Experimental evaluations on carrier aggregation and multi-user MIMO associated with EVD-based CSI feedback for LTE-Advanced downlink LTE-Advanced下行链路基于evd CSI反馈的载波聚合和多用户MIMO实验评估

2011 8th International Symposium on Wireless Communication Systems Pub Date : 2011-11-01 DOI: 10.1109/ISWCS.2011.6125289

Yuichi Kakishima, K. Takeda, T. Kawamura, Y. Kishiyama, H. Taoka, Takehiro Nakamura

{"title":"Experimental evaluations on carrier aggregation and multi-user MIMO associated with EVD-based CSI feedback for LTE-Advanced downlink","authors":"Yuichi Kakishima, K. Takeda, T. Kawamura, Y. Kishiyama, H. Taoka, Takehiro Nakamura","doi":"10.1109/ISWCS.2011.6125289","DOIUrl":"https://doi.org/10.1109/ISWCS.2011.6125289","url":null,"abstract":"This paper presents laboratory experimental results on 4-by-2 multi-user (MU)-MIMO multiplexing with two mobile stations (MSs) in the LTE-Advanced downlink in combination with carrier aggregation (CA) using 5 component carriers (CCs). Extended channel state information (CSI) feedback functionality based on eigenvalue decomposition (EVD) is implemented into real-time experimental equipment based on the LTE-Advanced radio interface to support MU-MIMO operations applying minimum mean square error (MMSE)-based precoding. Laboratory experiments are conducted assuming a multi-path fading environment based on different antenna configurations. The experimental results show that 4-by-2 MU-MIMO with two data streams per MS achieves a peak throughput of greater than 950 Mbps, i.e., nearly 1 Gbps, in a correlated antenna configuration scenario when the maximum Doppler frequency is 10 Hz and the propagation channel model with the root mean squared delay spread is 0.3 μsec. The results also show that, high throughput performance such as greater than 750 Mbps for 4-by-2 MU-MIMO with two data streams per MS is acheived even in a non-correlated antenna configuration scenario although the environment is limited to low mobility and a small delay spread.","PeriodicalId":414065,"journal":{"name":"2011 8th International Symposium on Wireless Communication Systems","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128703114","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