New orthogonal binary user codes for multiuser spread spectrum communications

Radha Poluri, Ali N. Akansu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Walsh codes are perfectly orthogonal binary (antipodal) block codes that found many popular applications over many decades including synchronous multi-user communications. It is well known that they perform poorly for asynchronous multi-user communications. Therefore, the Gold codes are the preferred user codes in asynchronous CDMA communications. In this paper, new sets of binary orthogonal user codes are introduced for asynchronous spread spectrum multi-user communications. It is shown in this paper that the proposed binary user code family outperforms the Walsh codes significantly and they match in performance with the popular, nearly orthogonal Gold codes closely for asynchronous multi-user communications. We present that there are a good number of such independent code sets of different sizes available in the binary space. They might help us to increase service/multi-service capabilities of future communications systems.

Original languageEnglish (US)
Title of host publication13th European Signal Processing Conference, EUSIPCO 2005
Pages2462-2465
Number of pages4
StatePublished - Dec 1 2005
Event13th European Signal Processing Conference, EUSIPCO 2005 - Antalya, Turkey
Duration: Sep 4 2005Sep 8 2005

Publication series

Name13th European Signal Processing Conference, EUSIPCO 2005

Other

Other13th European Signal Processing Conference, EUSIPCO 2005
CountryTurkey
CityAntalya
Period9/4/059/8/05

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All Science Journal Classification (ASJC) codes

  • Signal Processing

Cite this

Poluri, R., & Akansu, A. N. (2005). New orthogonal binary user codes for multiuser spread spectrum communications. In 13th European Signal Processing Conference, EUSIPCO 2005 (pp. 2462-2465). (13th European Signal Processing Conference, EUSIPCO 2005).