Design and Performance of Low Complexity Multiple Antenna Relay Transmission Based on STBC-OFDM 


Vol. 36,  No. 11, pp. 673-681, Nov.  2011


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  Abstract

In this paper, we design multiple antenna relay transmission schemes of low complexity to enhance the spatial diversity in orthogonal frequency division multiplexing (OFDM) systems. The relay scheme underlined, can provide space time block coding (STBC) of OFDM signals in the time domain without IFFT and FFT operations with much reduced complexity. In this paper, we modify the conventional low-complexity STBC-OFDM relaying scheme to be compatible to the existing OFDM systems. In addition, we extend the proposed scheme for multiple antenna relays and provide performance enhancement strategies according to the channel quality information available at the relay. The proposed scheme is shown to improve the diversity and thereby to reduce the outage probability and coded bit error rate. Therefore, the proposed scheme will be promising for service quality improvement or coverage extension based on OFDM like wireless LANs and maritime communications.

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  Cite this article

[IEEE Style]

J. H. Lee, J. C. Park, J. S. Wang, S. R. Lee, Y. H. Kim, "Design and Performance of Low Complexity Multiple Antenna Relay Transmission Based on STBC-OFDM," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 11, pp. 673-681, 2011. DOI: .

[ACM Style]

Ji Hye Lee, Jae Cheol Park, Jin Soo Wang, Seong Ro Lee, and Yun Hee Kim. 2011. Design and Performance of Low Complexity Multiple Antenna Relay Transmission Based on STBC-OFDM. The Journal of Korean Institute of Communications and Information Sciences, 36, 11, (2011), 673-681. DOI: .

[KICS Style]

Ji Hye Lee, Jae Cheol Park, Jin Soo Wang, Seong Ro Lee, Yun Hee Kim, "Design and Performance of Low Complexity Multiple Antenna Relay Transmission Based on STBC-OFDM," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 11, pp. 673-681, 11. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880