A Relay and Transmission Mode Selection Scheme to Enhance the Bit Error Rate Performance in Relay Systems 


Vol. 36,  No. 12, pp. 941-949, Dec.  2011


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  Abstract

In a cooperative communication system with a source node and multiple relays equipping single antenna and a destination node equipping multiple antennas, the selective cooperative spatial multiplexing scheme can obtain spatial multiplexing gain and additional selection diversity gain. But it can degrade a bit error rate performance because some received symbols forwarded from particular relays may be lost by attenuation due to path-loss. We propose a relay and transmission mode selection scheme which selects minimum number of multiple relays having the channel capacity larger than a given data rate and transmission mode which switches spatial multiplexing and spatial diversity mode in cooperation phase to enhance the bit error rate performance. The proposed scheme achieves 1.5~2dB gain at the low SNR range compared with the conventional scheme by obtaining additional spatial diversity gain.

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  Cite this article

[IEEE Style]

J. Seo, M. Lee, Y. Lee, D. Kwon, J. Chung, "A Relay and Transmission Mode Selection Scheme to Enhance the Bit Error Rate Performance in Relay Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 12, pp. 941-949, 2011. DOI: .

[ACM Style]

Jongpil Seo, Myunghoon Lee, Yoonju Lee, Dongseung Kwon, and Jaehak Chung. 2011. A Relay and Transmission Mode Selection Scheme to Enhance the Bit Error Rate Performance in Relay Systems. The Journal of Korean Institute of Communications and Information Sciences, 36, 12, (2011), 941-949. DOI: .

[KICS Style]

Jongpil Seo, Myunghoon Lee, Yoonju Lee, Dongseung Kwon, Jaehak Chung, "A Relay and Transmission Mode Selection Scheme to Enhance the Bit Error Rate Performance in Relay Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 12, pp. 941-949, 12. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880