Network MIMO in the presence of transmit desynchronization

Oussama Souihli, Tomoaki Ohtsuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we study the performance of Network MIMO in the presence of transmit desynchronization between the base stations (BS), in Rayleigh fading radio environments. We model the transmit desynchronization using lower shift matrices and we explain how a receiver can reliably detect space-time codewords while mitigating synchronization errors. Subsequently, we derive a closed form of the system capacity and bounds on the capacity scaling. Interestingly, we find out that maximum capacity scaling can be preserved even in the presence of desynchronization, provided that the latter be uniformly distributed over [0, T - 1], where T is the codeblock length. Thus, our work suggests that, rather than synchronizing all BSs to a common clock, it would be more beneficial, from a capacity scaling perspective, to have their signal clocks independent from each other.

Original languageEnglish
Title of host publication2010 IEEE International Conference on Communications, ICC 2010
DOIs
Publication statusPublished - 2010 Aug 13
Event2010 IEEE International Conference on Communications, ICC 2010 - Cape Town, South Africa
Duration: 2010 May 232010 May 27

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Other

Other2010 IEEE International Conference on Communications, ICC 2010
CountrySouth Africa
CityCape Town
Period10/5/2310/5/27

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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    Souihli, O., & Ohtsuki, T. (2010). Network MIMO in the presence of transmit desynchronization. In 2010 IEEE International Conference on Communications, ICC 2010 [5502456] (IEEE International Conference on Communications). https://doi.org/10.1109/ICC.2010.5502456