International Journal of Image, Graphics and Signal Processing(IJIGSP)

ISSN: 2074-9074 (Print), ISSN: 2074-9082 (Online)

Published By: MECS Press

IJIGSP Vol.5, No.2, Feb. 2013

Comparison of Wireless MIMO System Under Alamouti's Scheme and Maximum Ratio Combining Technique

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Apoorva Pandey, Rafik Ahmad, Devesh Pratap Singh

Index Terms

Diversity, Maximal Ratio Combining, Rayleigh fading, Alamouti's Scheme and BER


In wireless communication fading of channels is the serious cause of the received degraded signals. The effect of fading can be minimized by using various time and space domain techniques. However, space domain techniques are preferred over the others due to its advantages. In this paper, comparison of the wireless MIMO system under Almouti's and maximum ratio combining schemes is presented. Basic idea in these schemes is to transmit and receive more than one copy of the original signals. Using two transmitter antennas and one receiver antenna, the scheme provides the nearly same diversity order as the maximal-ratio receiver combining (MRRC) with one transmitter antenna, and two receiver antennas. Results for one transmitter and four receivers under MRRC is also presented and compared. Finally, results are presented while varying the average transmitted power.

Cite This Paper

Apoorva Pandey, Rafik Ahmad, Devesh Pratap Singh,"Comparison of Wireless MIMO System Under Alamouti's Scheme and Maximum Ratio Combining Technique", IJIGSP, vol.5, no.2, pp.31-37, 2013.DOI: 10.5815/ijigsp.2013.02.05


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