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Diversity analysis of multi-antenna UWB impulse radio systems with correlated propagation channels

  • Junsheng Liu
    ,
  • Mohammad Ghavami
    ,
  • Xiaoli Chu
    ,
  • Ben Allen
    ,
  • Wasim Q. Malik
Research Output: Chapter in Book/Report/Conference proceeding Conference contribution Peer-review

Abstract

Providing diversity is one of the two possible objectives (the other one is providing multiplexing) of a multi-input multi-output (MIMO) system. For ultra wideband (UWB) impulse radio systems using rake receivers, there are already richly inherent multipath diversities. However, there may be UWB applications making use of more than one UWB transmit antenna and/or receive antenna, which leads to UWB MIMO systems. The difference between the diversity analyse of a UWB MIMO system from that of a narrow band system lies in the different choice of propagation channel model for the branches linking each transmit antenna and receive antenna. Similar to the narrow band system, the existence of the correlation between the branches can severely degrade the diversity performance, and complicate the performance analyse. In this paper, the wideband propagation channel for the UWB MIMO system, with pre-defined correlation model for the branches, is broken down into several uncorrelated elementary narrow-band propagation channels with equivalent diversity performance. Based on this, a novel method for evaluating the diversity performance of a MIMO UWB impulse radio system is presented.

Publication Information

Output type

Research Output: Chapter in Book/Report/Conference proceeding Conference contribution Peer-review

Original language

English

Publication milestones

  • Published - 04/06/2007

Publication status

Published - 04/06/2007

Publisher

Institute of Electrical and Electronics Engineers Inc., United States

ISBN (Print)

1424406587

External Publication IDs

  • handle.net: 10547/270958
  • Scopus: 36348937168

Host publication title

2007 IEEE Wireless Communications and Networking Conference

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