Downlink Performance Analysis of MIMO Relaying Networks

Authors:
Ping Wang;Lijun Zu;Fuqiang Liu;Jing Han;Qing Ai;Ngoc Van Nguyen;Yiling Wang
Affiliations:
Broadband Wireless Communications and Multimedia Laboratory, The Key Laboratory of Embedded System and Service Computing Supported by Ministry of Education, College of Electronics and Information ...;Broadband Wireless Communications and Multimedia Laboratory, The Key Laboratory of Embedded System and Service Computing Supported by Ministry of Education, College of Electronics and Information ...;Broadband Wireless Communications and Multimedia Laboratory, The Key Laboratory of Embedded System and Service Computing Supported by Ministry of Education, College of Electronics and Information ...;Broadband Wireless Communications and Multimedia Laboratory, The Key Laboratory of Embedded System and Service Computing Supported by Ministry of Education, College of Electronics and Information ...;Broadband Wireless Communications and Multimedia Laboratory, The Key Laboratory of Embedded System and Service Computing Supported by Ministry of Education, College of Electronics and Information ...;Broadband Wireless Communications and Multimedia Laboratory, The Key Laboratory of Embedded System and Service Computing Supported by Ministry of Education, College of Electronics and Information ...;Broadband Wireless Communications and Multimedia Laboratory, The Key Laboratory of Embedded System and Service Computing Supported by Ministry of Education, College of Electronics and Information ...
Venue:
Wireless Personal Communications: An International Journal
Year:
2012

Citing 4
Cited 1

MIMO System Technology for Wireless Communications (Electrical Engineering and Applied Signal Processing)

MIMO System Technology for Wireless Communications (Electrical Engineering and Applied Signal Processing)
On the capacity of MIMO relay channels

IEEE Transactions on Information Theory
Capacity limits of MIMO channels

IEEE Journal on Selected Areas in Communications
Optimal relay functionality for SNR maximization in memoryless relay networks

IEEE Journal on Selected Areas in Communications

The Downlink Capacity of Single-User SA-MIMO System

Wireless Personal Communications: An International Journal

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Abstract

In recent years, there has been an upsurge of interest in relay-augmented infrastructure-based networks. On the other hand, multiple-input-multiple-output (MIMO) wireless system becomes a hot topic for it can achieve significant increases in overall system performance. This paper gives a detailed analysis of downlink performance of MIMO relaying networks, in which different channel models and classic MIMO cellular system model with fixed relay are considered. Our results in single cell scenario show that when meeting effective relay system efficiency of 100%, the required relay SNR gain of 2-antenna system can be reduced to less than half of that with only one transceiver antenna. We also observe that MIMO is more tolerant to interference compared with the one-transceiver antenna system. After that, multi-hop architecture is researched and statistics figures out the tolerable number of hops which is supported in wireless communication with a view to real application. In addition, multi-cell scenario is also studied. Statistics results show that there is more 8 dB average spectral efficiency gain in a two-hop fixed relay 4 脳 4 MIMO system than that in a SISO system. These results present significant indications in deployment and optimization of relay-based MIMO networks.