Browse > Article

Suboptimum Decoding for Space-Time Trellis Codes in Slowly Fading Channels  

Shin Sang-Seop (충북대학교 정보통신공학과)
Kim Young-Ju (충북대학교 전기전자컴퓨터공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.8C, 2006 , pp. 771-776 More about this Journal
Abstract
We present a suboptimum decoding method for space-time trellis codes, which include maximum $likelihood(ML)^{[1]}$ and principal ratio $combining(PRC)^{[2]}$, over quasi-static flat fading channels. In the proposed scheme, the receive antennas are divided into K groups and the PRC is applied to each group, showing a flexible performances between ML and PRC. When K is determined, we also propose the optimum grouping rules and performance index(PI), which simply anticipate the relative performances. Moreover the performances are also evaluated when receive antennas are correlated. Finally, Computer simulations corroborate those theoretical results.
Keywords
Diversity; space-time codes; wireless communication;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Tarokh, V. and Lo, T. K. Y., 'Principal Ratio Combining for Fixed Wireless Applications When Transmitter Diversity Is Employed,' IEEE Communications Letters, Vol. 2, pp. 223-225, Aug. 1998   DOI   ScienceOn
2 Proakis, J. G., Digital Communications, McGraw-Hill Inc., 2nd ed., 1989
3 Tarokh, V., Seshadri, N., Calderbank, A. R., 'Space-Time Codes for High Data Rate Wireless Communication : Performance Criterion and Code Construction,' IEEE Trans. on Inform. Theory, Vol. IT-44, pp. 744-765, Mar. 1998
4 B. Natarajan, C. R. Nassar, and V. Chandrasekhar. 'Generation of correlated Rayleigh fading envelopes for spread spectrum applications,' IEEE Commun. Lett, 4(1) : 9-11, Jan. 2000   DOI   ScienceOn
5 W.C. Jakes, Ed, 'Microwave Mobile Communications' New York: IEEE Press, 1974