Harnessing receive diversity in distributed multi-user MIMO networks

Bo Si Chen, Ching-Ju Lin, Hung Yu Wei

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

2 Scopus citations

Abstract

In existing multiuser MIMO (MU-MIMO) MAC protocols, a multi-antenna node sends as many concurrent streams as possible once it wins the contention. Though such a scheme allows nodes to utilize the multiplex gain of a MIMO system, it however fails to leverage receive diversity gains provided by multiple receive antennas across nodes. We introduce Multiplex-Diversity Medium Access (MDMA), a MU-MIMO MAC protocol that achieves both the multiplex gain and the receive diversity gain at the same time. Instead of letting a node pair use all the available degrees of freedom, MDMA allows as many contending node pairs to communicate concurrently as possible and share all the degrees of freedom. It hence can exploit the antennas equipped on different receivers to further provide some of concurrent streams more receive diversity, without losing the achievable multiplex gain. We implement a prototype on software radios to demonstrate the throughput gain of MDMA.

Original languageEnglish
Title of host publicationProceedings of the SIGCOMM 2013 and Best Papers of the Co-Located Workshops
Pages505-506
Number of pages2
Edition4
DOIs
StatePublished - 1 Dec 2013
EventAnnual Conference of the ACM Special Interest Group on Data Communication on the Applications, Technologies, Architectures, and Protocols for Computer Communication, ACM SIGCOMM 2013 - Hong Kong, China
Duration: 12 Aug 201316 Aug 2013

Publication series

NameComputer Communication Review
Number4
Volume43
ISSN (Print)0146-4833
ISSN (Electronic)1943-5819

Conference

ConferenceAnnual Conference of the ACM Special Interest Group on Data Communication on the Applications, Technologies, Architectures, and Protocols for Computer Communication, ACM SIGCOMM 2013
CountryChina
CityHong Kong
Period12/08/1316/08/13

Keywords

  • diversity gain
  • medium access control
  • multi-user mimo

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  • Cite this

    Chen, B. S., Lin, C-J., & Wei, H. Y. (2013). Harnessing receive diversity in distributed multi-user MIMO networks. In Proceedings of the SIGCOMM 2013 and Best Papers of the Co-Located Workshops (4 ed., pp. 505-506). (Computer Communication Review; Vol. 43, No. 4). https://doi.org/10.1145/2534169.2491720