Two cross-layer optimization methods for transporting multimedia traffic over multicode CDMA networks

Hui Chen, Chun Bun Henry Chan, Victor C M Leung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Previous work on code division multiple access (CDMA) often considers the bit error ratio (BER) at the physical layer and the frame drop ratio (FDR) at the medium access control (MAC) layer separately. However, better system performance (e.g., lower overall packet loss ratio (PLR)) can be achieved if BER and FDR are jointly optimized. In this paper, we first set up a Markov chain model to evaluate the performance of transporting multimedia traffic over a multicode CDMA network. Then, we propose two novel cross-layer optimization methods that dynamically adjust the maximum number of simultaneous transmissions according to the traffic arrival rate and the queue status, respectively. Simulation and analytical results show that these two methods can significantly reduce PLR and increase the system throughput.
Original languageEnglish
Title of host publication2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
Pages288-293
Number of pages6
DOIs
Publication statusPublished - 27 Nov 2007
Event2007 IEEE Wireless Communications and Networking Conference, WCNC 2007 - Kowloon, China
Duration: 11 Mar 200715 Mar 2007

Conference

Conference2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
Country/TerritoryChina
CityKowloon
Period11/03/0715/03/07

ASJC Scopus subject areas

  • Engineering(all)

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