A Novel Alamouti Transmission Scheme for OFDM Based Asynchronous Cooperative Systems with Low Relay Complexity 


Vol. 36,  No. 2, pp. 105-111, Feb.  2011


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  Abstract

In this paper, we propose a novel Alamouti space-time transmission scheme for orthogonal frequency division multiplexing (OFDM) based asynchronous cooperative communication systems with low relay complexity. The conventional scheme requires an additional operation likes time-reversal at the relay nodes besides the simple multiplications at the relay nodes, which result in increasing the complexity of relay nodes. Unlike the conventional scheme, exploiting the simple combination of the symbols at the source node and the simple multiplications at the relay nodes, the proposed scheme achieves the second order diversity gain by obtaining the Alamouti code structure at the destination node. Simulation results show that the proposed scheme achieves the second order diversity gain and has the same bit error rate performance as the conventional scheme.

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  Cite this article

[IEEE Style]

S. G. Kang, Y. Lee, I. Song, S. Yoon, "A Novel Alamouti Transmission Scheme for OFDM Based Asynchronous Cooperative Systems with Low Relay Complexity," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 2, pp. 105-111, 2011. DOI: .

[ACM Style]

Seung Goo Kang, Youngpo Lee, Iickho Song, and Seokho Yoon. 2011. A Novel Alamouti Transmission Scheme for OFDM Based Asynchronous Cooperative Systems with Low Relay Complexity. The Journal of Korean Institute of Communications and Information Sciences, 36, 2, (2011), 105-111. DOI: .

[KICS Style]

Seung Goo Kang, Youngpo Lee, Iickho Song, Seokho Yoon, "A Novel Alamouti Transmission Scheme for OFDM Based Asynchronous Cooperative Systems with Low Relay Complexity," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 2, pp. 105-111, 2. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880