Low Complexity MMSE with Successive Interference Cancellation for OFDM Systems over Time-selective Channels 


Vol. 33,  No. 7, pp. 743-750, Jul.  2008


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  Abstract

Orthogonal frequency division multiplexing (OFDM) is a attractive modulation scheme for high data rate transmission in frequency-selective channels. However, the time selectivity of wireless channel introduces intercarrier interference (ICI), and consequently degrades system performance. In this paper, we first propose a novel recursive algorithm for minimum mean squared error (MMSE) with successive interference cancellation (SIC). The proposed algorithm can significantly reduce the complexity of the MMSE-SIC scheme and achieve the same performance when optimal ordering is known. Also, the further reduced scheme of the proposed algorithm can be developed based on ICI properties, while preserving performance.

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  Cite this article

[IEEE Style]

J. Park, S. Hwang, K. Whang, "Low Complexity MMSE with Successive Interference Cancellation for OFDM Systems over Time-selective Channels," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 7, pp. 743-750, 2008. DOI: .

[ACM Style]

Ji-Hyun Park, Seung-Hoon Hwang, and Keum-Chan Whang. 2008. Low Complexity MMSE with Successive Interference Cancellation for OFDM Systems over Time-selective Channels. The Journal of Korean Institute of Communications and Information Sciences, 33, 7, (2008), 743-750. DOI: .

[KICS Style]

Ji-Hyun Park, Seung-Hoon Hwang, Keum-Chan Whang, "Low Complexity MMSE with Successive Interference Cancellation for OFDM Systems over Time-selective Channels," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 7, pp. 743-750, 7. 2008.