Title :
Diversity-Multiplexing Tradeoff in MIMO System with Finite SNR
Author :
Ebrahimzad, Hamid ; Mohammadi, Abbas
Author_Institution :
Amirkabir Univ. of Technol., Tehran
Abstract :
In this paper, the diversity-multiplexing tradeoff (DMT) for a multiple-input multiple-output (MIMO) channel with two transmitter and two receiver antennas (2times2 MIMO) at finite signal to noise ratio (SNR) has been studied. To characterize the trade-off, the outage probability of the mutual information between transmitted and received signals versus SNR is extracted. The diversity gain is the slope of the outage probability versus SNR curve at a particular SNR while the multiplexing gain is the ratio of the system spectral efficiency to the capacity of an additive white Gaussian noise (AWGN) channel. This paper provides a useful tool to examine the diversity-multiplexing trade-off at the 2times2 MIMO system in practical (finite SNR) situation.
Keywords :
AWGN channels; MIMO communication; channel capacity; diversity reception; multiplexing; MIMO system; additive white Gaussian noise channel; channel capacity; diversity-multiplexing tradeoff; finite SNR; multiple-input multiple-output channel; signal to noise ratio; AWGN; Data mining; Diversity methods; MIMO; Mutual information; OFDM modulation; Receiving antennas; Signal to noise ratio; Transmitters; Transmitting antennas; MIMO; Tradeoff; diversity; multiplexing;
Conference_Titel :
Wireless Technologies, 2007 European Conference on
Conference_Location :
Munich
Print_ISBN :
978-2-87487-003-3
DOI :
10.1109/ECWT.2007.4403967
