Performance Assessment of a Computationally Efficient MMSE Receiver for Asynchronous MC-CDMA Systems over Multipath Fading Channels

Author

Yi, S.J. ; Tsimenidis, C.C. ; Sharif, B.S. ; Le Goff, S.Y.

Author_Institution

Sch. of Electr. Electron. & Comput. Eng., Newcastle upon Tyne Univ.

Volume

3

fYear

2006

fDate

14-19 May 2006

Abstract

In this paper, the performance of a computationally efficient adaptive MMSE receiver is investigated for asynchronous MC-CDMA systems over multipath fading channels. According to Wiener filter and LMS algorithm theories, we prove that the proposed computationally efficient MMSE receiver has the same BER and convergence performance as that of the conventional MMSE receiver, assuming the sampling rate per symbol is equal to the number of subcarriers. When the sampling rate per symbol is increased, the proposed receiver can outperform the conventional MMSE receiver without sacrificing the convergence speed. The theoretical analysis is verified by the results through Monte-Carlo simulation

Keywords

Monte Carlo methods; Wiener filters; code division multiple access; fading channels; least mean squares methods; multipath channels; radio receivers; signal sampling; BER; LMS algorithm; MMSE receiver; Monte-Carlo simulation; Wiener filter; asynchronous MC-CDMA systems; multipath fading channels; sampling rate per symbol; Algorithm design and analysis; Bit error rate; Convergence; Fading; Least squares approximation; Multicarrier code division multiple access; Multipath channels; Performance analysis; Sampling methods; Wiener filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on

Conference_Location

Toulouse

ISSN

1520-6149

Print_ISBN

1-4244-0469-X

Type

conf

DOI

10.1109/ICASSP.2006.1660768

Filename

1660768