Performance of CDMA random access systems with packet combining in fading channels

Xiaodong Cai, Yi Sun, Ali N. Akansu

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We analyze the system performance of code-division multiple-access (CDMA) random access systems with linear receivers and packet combing in multipath fading channels. Both slotted and unskilled CDMA systems with random spreading codes are considered. The analysis is based on large systems in which both the offered load and the processing gain tend to infinity but their ratio is fixed. It is relatively easy to characterize the traffic in such large systems, which enables us to derive the system throughput and average delay. From the analysis results, it is observed that multiuser detection and packet combining substantially improve the system performance.

Original languageEnglish
Pages (from-to)413-419
Number of pages7
JournalIEEE Transactions on Wireless Communications
Volume2
Issue number3
DOIs
StatePublished - May 1 2003
Externally publishedYes

Fingerprint

Random Access
Code Division multiple Access
Fading Channels
Fading channels
Code division multiple access
Multiuser detection
Multipath fading
Throughput
System Performance
Multiuser Detection
Processing
Multipath
Receiver
Infinity
Traffic
Tend

Keywords

  • Code-division multiple-access (CDMA)
  • Multiuser detection (MUD)
  • Packet combining
  • Random access network
  • Rayleigh fading

ASJC Scopus subject areas

  • Engineering(all)
  • Computer Networks and Communications

Cite this

Performance of CDMA random access systems with packet combining in fading channels. / Cai, Xiaodong; Sun, Yi; Akansu, Ali N.

In: IEEE Transactions on Wireless Communications, Vol. 2, No. 3, 01.05.2003, p. 413-419.

Research output: Contribution to journalArticle

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