MIMO Channel Gain Mechanisms Relative to SISO Channel
In contrast to the rest of wireless communication technologies, multiple-input multiple-output (MIMO) technology enjoys different gain mechanisms that make it very attractive for reliable high data rate wireless communications. This paper presents a study on these gain mechanisms with particular emp...
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doaj-bb801632046d45f1a845bcc1ae519d962020-11-25T02:51:50ZengSultan Qaboos UniversityThe Journal of Engineering Research1726-60091726-67422010-12-0172404710.24200/tjer.vol7iss2pp40-4781MIMO Channel Gain Mechanisms Relative to SISO ChannelA. A. Abouda0N.G. Tarhuni1Dept. of Electrical and Electronic Eng, College of Engineering, 7th of Misurata University, PO 2478, Misurate, LibyaDept. of Electrical and Computer Eng, College of Engineering, PO Box 33, PC 123, Al-Khoud, Sultanate of OmanIn contrast to the rest of wireless communication technologies, multiple-input multiple-output (MIMO) technology enjoys different gain mechanisms that make it very attractive for reliable high data rate wireless communications. This paper presents a study on these gain mechanisms with particular emphasis on the case of high average received signal to noise ratio (SNR) where the MIMO system deployment is most promising. We write the MIMO channel capacity in terms of gains relative to a single- input single-output (SISO) wireless channel. Doing so, spatial multiplexing gain and power gain of MIMO wireless channels become more insightful. Based on this analysis a switching scheme between spatial multiplexing and transmit diversity is proposed. We support our discussion with numerical results which show that under a high data rate spatial multiplexing scheme the contribution of each gain mechanism to the total channel capacity depends on the channel Ricean factor, the average received SNR, and the MIMO system size. The proposed switching scheme gives about 2 dB gain in bit error rate performance relative to the spatial multiplexing mode.https://journals.squ.edu.om/index.php/tjer/article/view/81mimo channel, gain mechanisms, channel capacity, spatial multiplexing gain, diversity gain, switching scheme |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A. A. Abouda N.G. Tarhuni |
spellingShingle |
A. A. Abouda N.G. Tarhuni MIMO Channel Gain Mechanisms Relative to SISO Channel The Journal of Engineering Research mimo channel, gain mechanisms, channel capacity, spatial multiplexing gain, diversity gain, switching scheme |
author_facet |
A. A. Abouda N.G. Tarhuni |
author_sort |
A. A. Abouda |
title |
MIMO Channel Gain Mechanisms Relative to SISO Channel |
title_short |
MIMO Channel Gain Mechanisms Relative to SISO Channel |
title_full |
MIMO Channel Gain Mechanisms Relative to SISO Channel |
title_fullStr |
MIMO Channel Gain Mechanisms Relative to SISO Channel |
title_full_unstemmed |
MIMO Channel Gain Mechanisms Relative to SISO Channel |
title_sort |
mimo channel gain mechanisms relative to siso channel |
publisher |
Sultan Qaboos University |
series |
The Journal of Engineering Research |
issn |
1726-6009 1726-6742 |
publishDate |
2010-12-01 |
description |
In contrast to the rest of wireless communication technologies, multiple-input multiple-output (MIMO) technology enjoys different gain mechanisms that make it very attractive for reliable high data rate wireless communications. This paper presents a study on these gain mechanisms with particular emphasis on the case of high average received signal to noise ratio (SNR) where the MIMO system deployment is most promising. We write the MIMO channel capacity in terms of gains relative to a single- input single-output (SISO) wireless channel. Doing so, spatial multiplexing gain and power gain of MIMO wireless channels become more insightful. Based on this analysis a switching scheme between spatial multiplexing and transmit diversity is proposed. We support our discussion with numerical results which show that under a high data rate spatial multiplexing scheme the contribution of each gain mechanism to the total channel capacity depends on the channel Ricean factor, the average received SNR, and the MIMO system size. The proposed switching scheme gives about 2 dB gain in bit error rate performance relative to the spatial multiplexing mode. |
topic |
mimo channel, gain mechanisms, channel capacity, spatial multiplexing gain, diversity gain, switching scheme |
url |
https://journals.squ.edu.om/index.php/tjer/article/view/81 |
work_keys_str_mv |
AT aaabouda mimochannelgainmechanismsrelativetosisochannel AT ngtarhuni mimochannelgainmechanismsrelativetosisochannel |
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1724733025666727936 |