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  • Research Article
  • Open Access

On Optimum End-to-End Distortion in MIMO Systems

EURASIP Journal on Wireless Communications and Networking20102009:383945

https://doi.org/10.1155/2009/383945

  • Received: 16 February 2009
  • Accepted: 21 December 2009
  • Published:

Abstract

This paper presents the joint impact of the numbers of antennas, source-to-channel bandwidth ratio, and spatial correlation on the optimum expected end-to-end distortion in an outage-free MIMO system. In particular, based on an analytical expression valid for any SNR, a closed-form expression of the optimum asymptotic expected end-to-end distortion valid for high SNR is derived. It is comprised of the optimum distortion exponent and the multiplicative optimum distortion factor. Demonstrated by the simulation results, the analysis on the joint impact of the optimum distortion exponent and the optimum distortion factor explains the behavior of the optimum expected end-to-end distortion varying with the numbers of antennas, source-to-channel bandwidth ratio, and spatial correlation. It is also proved that as the correlation tends to zero, the optimum asymptotic expected end-to-end distortion in the setting of correlated channel approaches that in the setting of uncorrelated channel. The results in this paper could be performance objectives for analog-source transmission systems. To some extent, they are instructive for system design.

Keywords

  • Information System
  • System Design
  • Spatial Correlation
  • System Application
  • Transmission System

Publisher note

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Authors’ Affiliations

(1)
Research & Innovation Center, Alcatel-Lucent Shanghai Bell, 388 Ningqiao Road., Pudong, Shanghai, 201206, China
(2)
Department of Mobile Communications, EURECOM, B.P. 193, 06904 Sophia-Antipolis Cedex, France

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