Throughput-oriented power control in MIMO-B ased ad hoc networks

Mohammad Z. Siam, Marwan Krunz

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

4 Scopus citations


Transmission power control (TPC) has been used in wireless ad hoc networks to improve channel reuse and/or reduce energy consumption. It has been mainly applied to single-input single-output (SISO) systems, in which each node is equipped with a single antenna. In this paper, we study MAC protocols for mobile ad hoc networks (MANETs) with MIMO (multi-input multi-output) capability. In particular, we consider the integration of MIMO into two MAC protocols. The first protocol is the IEEE 802.11 standard, which is a conservative protocol that does not use TPC. The second protocol is POWMAC, which exploits TPC to maximize the perceived throughput. We refer to these protocols when applied to MIMO systems as MIMO-802.11 and MIMO-POWMAC. We compare the performance of MIMO-802.11 and MIMO-POWMAC with SISO-802.11 and SISO-POWMAC, in terms of the perceived throughput and energy consumption. Our simulations reveal that although the MIMO system doubles the bit rate per link over the SISO system, the network throughput is not necessarily doubled due a reduction in the number of concurrent transmissions. In addition, the throughput gains in the MIMO system come at a non-negligible energy cost.

Original languageEnglish (US)
Title of host publication2007 IEEE International Conference on Communications, ICC'07
Number of pages6
StatePublished - 2007
Event2007 IEEE International Conference on Communications, ICC'07 - Glasgow, Scotland, United Kingdom
Duration: Jun 24 2007Jun 28 2007

Publication series

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


Other2007 IEEE International Conference on Communications, ICC'07
Country/TerritoryUnited Kingdom
CityGlasgow, Scotland

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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