Effect of Imperfect Channel Knowledge on M-QAM SER Performance of Space-Time Block Codes 


Vol. 27,  No. 2, pp. 99-108, Feb.  2002


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  Abstract

In this paper, we discuss the effect of imperfect knowledge of the transmission channel on the M-QAM SER performance of space-time block codes. Because the channel knowledge is used for decoding of space-time block codes, the imperfect channel knowledge can degrade the performance of space-time block codes. In this paper, the channel mismatch error is modeled as errors in the estimation of the channel due to noise and errors due to the variation of the channel. We derive the analytic expression for the symbol error rate (SER) as a function of the average signal to interference ratio (SIR) per channel including the terms of channel mismatch errors. Simulation results show that the acceptable levels of channel estimation error is 10^3 and that of channel variation is f_dT_B= 0.001 at SNR=20dB in space-time block codes.

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  Cite this article

[IEEE Style]

E. Ko, C. Kang, D. Hong, "Effect of Imperfect Channel Knowledge on M-QAM SER Performance of Space-Time Block Codes," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 2, pp. 99-108, 2002. DOI: .

[ACM Style]

Eun-seok Ko, Chang-eon Kang, and Dae-sik Hong. 2002. Effect of Imperfect Channel Knowledge on M-QAM SER Performance of Space-Time Block Codes. The Journal of Korean Institute of Communications and Information Sciences, 27, 2, (2002), 99-108. DOI: .

[KICS Style]

Eun-seok Ko, Chang-eon Kang, Dae-sik Hong, "Effect of Imperfect Channel Knowledge on M-QAM SER Performance of Space-Time Block Codes," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 2, pp. 99-108, 2. 2002.