A CP-CDMA system with comb spectrum codes and its performance evaluation in Nakagami fading channels

Hongbing Cheng, Bingli Jiaot, Yu Dong Yao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Cyclic prefix code division multiple access (CP-CDMA) is a promising technology for broadband wireless communications. It can efficiently resist the multiple access interference (MAI) by the use of CP and frequency domain equalization in DS-CDMA systems. However, the equalization complexity, which is increased with bandwidth, hindered its application. A comb spectrum (CS) code was proposed to solve this problem. This technology combines the frequency orthogonality of orthogonal frequency division multiplexing (OFDM) to CDMA code design for grouping the codes and allows a significant reduction for the calculations in channel equalization. The proposed code design method divides the codes of M chips in length into N groups, which are orthogonal to each other in frequency domain. Each of the groups contains K codes which are mutually orthogonal in time domain. A CP-CDMA system with CS code is described and its complexity and BER performance are evaluated in this paper to show the effectiveness of the CS codes.

Original languageEnglish
Title of host publicationProceedings of the 2008 IEEE Sarnoff Symposium, SARNOFF
DOIs
StatePublished - 2008
Event2008 IEEE Sarnoff Symposium, SARNOFF - Princeton, NJ, United States
Duration: 28 Apr 200830 Apr 2008

Publication series

NameProceedings of the 2008 IEEE Sarnoff Symposium, SARNOFF

Conference

Conference2008 IEEE Sarnoff Symposium, SARNOFF
Country/TerritoryUnited States
CityPrinceton, NJ
Period28/04/0830/04/08

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