Title :
A max-min strategy for QoS improvement in MIMO ad-hoc networks
Author :
Baek, Seung Jun ; Kim, Gibeom ; Nettles, Scott M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
fDate :
30 May-1 June 2005
Abstract :
We investigate how to improve link quality without degrading data rate by exploiting tradeoffs between diversity and spatial multiplexing gains in multi-input multi-output ad-hoc networks. When the set of input rates for a MIMO network is given, we propose that maximizing the minimum diversity gain among the links provides a reasonable solution to optimize the overall link error probability when there is a reasonably high signal to noise ratio. We verify the performance using simulation based on a modified ns2.
Keywords :
MIMO systems; ad hoc networks; diversity reception; error statistics; minimax techniques; multiplexing; quality of service; radio links; MIMO ad-hoc networks; QoS improvement; data rate; diversity gains; link error probability; link quality; maxmin strategy; multiinput multioutput ad-hoc networks; signal to noise ratio; spatial multiplexing gains; Ad hoc networks; Computer networks; Data engineering; Degradation; Diversity methods; Error probability; Intelligent networks; MIMO; Quality of service; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543780
