RAKE reception with maximal-ratio and equal-gain combining for DS-CDMA systems in Nakagami fading

M S Alouini; S W Kim; A Goldsmith; IEEE

doi:10.1109/ICUPC.1997.627256

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RAKE reception with maximal-ratio and equal-gain combining for DS-CDMA systems in Nakagami fading

M S Alouini, S W Kim, A Goldsmith and IEEE

1997 IEEE 6TH INTERNATIONAL CONFERENCE ON UNIVERSAL PERSONAL COMMUNICATIONS RECORD, CONFERENCE RECORD, VOLS 1 AND 2, Vol.2, pp.708-712

01/01/1997

DOI: https://doi.org/10.1109/ICUPC.1997.627256

Abstract

Science & Technology

Technology

Telecommunications

We study coherent binary direct-sequence code division multiple access (DS-CDMA) systems operating over frequency selective Nakagami fading channels. In particular a performance comparison between maximal-ratio combining (MRC) and equal-gain combining (EGG) RAKE receivers is considered. For interference limited systems, perfect MRC RAKE receivers can accommodate about 5m/(5m - 1) more users than EGC RAKE receivers, where m is the Nakagami fading parameter. MRC has a higher rate of improvement than EGC as the number of combined paths increases. However, imperfect or inaccurate channel fading estimation leads to serious degradation in the performance of MRC receivers and in that case EGC becomes superior to MRC.

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Title: RAKE reception with maximal-ratio and equal-gain combining for DS-CDMA systems in Nakagami fading
Creators - without role: M S Alouini - California Institute of Technology
S W Kim
A Goldsmith
IEEE
Publication Details: 1997 IEEE 6TH INTERNATIONAL CONFERENCE ON UNIVERSAL PERSONAL COMMUNICATIONS RECORD, CONFERENCE RECORD, VOLS 1 AND 2, Vol.2, pp.708-712
Publisher: IEEE
Number of pages: 5
Identifiers: 9945110608331
Academic Unit: King Abdullah University of Science & Technology
Language: English
Resource Type: Conference proceeding