Sheng Bin, You Xiao-hu. Performance Analysis of Maximal Ratio Combining Diversity in DS-CDMA Systems[J]. Journal of Electronics & Information Technology, 2004, 26(9): 1351-1357.
Citation:
Sheng Bin, You Xiao-hu. Performance Analysis of Maximal Ratio Combining Diversity in DS-CDMA Systems[J]. Journal of Electronics & Information Technology, 2004, 26(9): 1351-1357.
Sheng Bin, You Xiao-hu. Performance Analysis of Maximal Ratio Combining Diversity in DS-CDMA Systems[J]. Journal of Electronics & Information Technology, 2004, 26(9): 1351-1357.
Citation:
Sheng Bin, You Xiao-hu. Performance Analysis of Maximal Ratio Combining Diversity in DS-CDMA Systems[J]. Journal of Electronics & Information Technology, 2004, 26(9): 1351-1357.
A new expression for the Bit Error Rate(BER) of a Direct-Sequence Code-Division Multiple-Access (DS-CDMA) system with non-ideal channel estimation in a frequency-selective Rayleigh fading channel is derived and evaluated. The analysis assumes an arbitrary number of independent, but non-identical resolvable paths combined by the conventional Maximal Ratio Combining(MRC) algorithm which is known to produce maxi-mal signal-to-noise ratio for diversity channels with equal noise powers and perfect channel estimates. The results obtained show that in such systems, the effects of non-identical fading and the channel estimation error on system performance cannot be ignored.
Viterbi A J. CDMA Principles of Spread Spectrum Communications. New York, Addison-Wesley Publishing Company, 1995: 73-115. [2]Proakis J G. Digital Communications. New York: McGraw-Hill, 1989: 797-806. [3]Eng T, Milstein L B. Coherent DS-CDMA performance in Nakagami multipath fading. IEEE Trans. on Commun., 1995, 43(2/3/4): 1134-1143. [4]Guenach M, Vandendorpe L. Downlink performance analysis of a BPSK-based WCDMA using conventional Rake receivers with channel estimation. IEEE Trans. on J. on Select. Areas, 2001,19(11): 2165-2176. [5]Kettunen K. Enhanced maximal ratio combining scheme for RAKE receivers in WCDMA mobile terminals. Electronics Letters, 2001, 37(8): 522-524. [6]Efthymoglou G P, Aalo V A, Helmken H. Performance analysis of coherent DS-CDMA systems in a Nakagami fading channel with arbitrary parameters. IEEE Trans. on Veh. Technol., 1997,46(2): 289-297. [7]Brennan D G. Linear diversity combining techniques. Proc. IRE, 1959, 46(4): 1075-1102.