OFDM system using adaptive code-rate for each sub-carrier 


Vol. 30,  No. 4, pp. 200-206, Apr.  2005


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  Abstract

Adaptive transmission techniques can improve the performance of wireless communication system by adaptively changing the transmission parameter such as modulation, code-rate, and power according to the channel state. For orthogonal frequency division multiplexing (OFDM) system, the adaptive transmission techniques can be applied to each subcarrier unit. In this paper, we consider the adaptive code-rate OFDM system in which optimal code-rate is applied to each subcarrier according to the subchannel state. Performance analysis show that 3~6dB gain of SNR or up to 30~50% increase of data rate are achieved in the condition of bit error rate 10^(-6).

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  Cite this article

[IEEE Style]

D. c. Park and S. c. Kim, "OFDM system using adaptive code-rate for each sub-carrier," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 200-206, 2005. DOI: .

[ACM Style]

Dong chan Park and Suk chan Kim. 2005. OFDM system using adaptive code-rate for each sub-carrier. The Journal of Korean Institute of Communications and Information Sciences, 30, 4, (2005), 200-206. DOI: .

[KICS Style]

Dong chan Park and Suk chan Kim, "OFDM system using adaptive code-rate for each sub-carrier," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 200-206, 4. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880