Title :
Comparison of diversity combining techniques for MIMO systems
Author :
Tuyen, Luu Pham ; Bao, Vo Nguyen Quoc
Author_Institution :
Binh Dinh Oper. & Maintenance Center (OMC), Vietnam Posts & Telecommun., Vietnam
Abstract :
Several diversity combining techniques have been proposed for multiple-input multiple-output (MIMO) systems, but only isolated performance comparisons have been reported. In this paper, we aim at comparing three MIMO schemes using selection combining (SC), maximal ratio combining (MRC) and switch-and-stay combining (SSC). It is analytically demonstrated that all the systems achieve full diversity gain with different coding gain. Besides, the performance gap between SC and MRC approaches to the limit and tends to increase linearly proportional to the number of transmit antennas. In case of SSC, the loss between SSC and SC, as well as between SSC and MRC, is not bounded as increasing signal-to-noise ratio (SNR).
Keywords :
MIMO communication; antenna arrays; diversity reception; encoding; transmitting antennas; MIMO systems; coding gain; diversity combining techniques; full diversity gain; maximal ratio combining; multiple-input multiple-output systems; selection combining; signal-to-noise ratio; switch-and-stay combining; transmit antennas; Diversity methods; Diversity reception; Encoding; MIMO; Receiving antennas; Signal to noise ratio;
Conference_Titel :
Communications (APCC), 2011 17th Asia-Pacific Conference on
Conference_Location :
Sabah
Print_ISBN :
978-1-4577-0389-8
DOI :
10.1109/APCC.2011.6152822