DocumentCode :
1452777
Title :
Performance of MC-CDM Systems With MMSEC Over Rayleigh Fading Channels
Author :
Lee, Yusung ; Kim, Namshik ; Park, Hyuncheol
Author_Institution :
Dept. of Inf. Commun. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
Volume :
59
Issue :
6
fYear :
2010
fDate :
7/1/2010 12:00:00 AM
Firstpage :
3126
Lastpage :
3130
Abstract :
In this paper, we investigate the performance of multicarrier code-division multiplexing (MC-CDM) systems with minimum mean square error combining (MMSEC) over a Rayleigh fading channel. An approximated expression on the symbol error rate (SER) for MMSEC is derived. The approximated expression provides an accurate approximation of the true SER, particularly for systems with higher modulation and a small spreading factor. Through the derived error performances, we also calculate the achievable diversity order. MC-CDM systems with MMSEC achieve the same asymptotical diversity order of 1, regardless of the spreading factor. Within practical signal-to-noise ratio (SNR) ranges, the effective diversity order is further increased as a larger spreading factor is used. The derived analytical expressions are verified by numerical and simulation results.
Keywords :
Rayleigh channels; code division multiple access; numerical analysis; MC-CDM systems; MMSEC; Rayleigh fading channels; minimum mean square error combining; multicarrier code-division multiplexing; numerical simulation; signal-to-noise ratio; symbol error rate; Minimum mean square error combining (MMSEC); multicarrier code-division multiple access (MC-CDMA); multicarrier code-division multiplexing (MC-CDM);
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/TVT.2010.2046506
Filename :
5438789
Link To Document :
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