D-PRMA: A dynamic packet reservation multiple access protocol for wireless communications

Mehdi Alasti, Nariman Farvardin

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

Abstract

This paper presents D-PRMA, a dynamic packet reservation multiple access protocol, to integrate voice and data traffic in a micro-cellular wireless network. Similar to other reservation protocols, D-PRMA decouples the speech access procedure from the data access procedure. However, D-PRMA exploits the time variations of the speech coding rate, through statistical multiplexing, to efficiently use the available bandwidth. A dynamic protocol using base station feedback schedules slot assignment among calls. In each frame, D-PRMA allocates bandwidth among calls as needed. Ongoing calls are always assigned some minimum bandwidth to allow for coding of the background noise during silence periods. In this way, undesired contentions that arise in PRMA due to silence-to-talkspurt transitions would be avoided. An embedded coding scheme is employed in the voice coder to help the system control the rate of the calls during congestion by selectively dropping some of the less significant packets, thus causing a graceful degradation of quality. Compared to other access protocols, D-PRMA can accommodate more voice calls while keeping the speech quality above an acceptable threshold. Slots not used by voice traffic will be assigned to the data traffic.

Original languageEnglish
Title of host publicationProceedings of the 2nd ACM International Workshop on Modeling, Analysis and Simulation of Wireless and Mobile Systems, MSWiM 1999
PublisherAssociation for Computing Machinery, Inc
Pages41-49
Number of pages9
ISBN (Electronic)1581131739, 9781581131734
DOIs
StatePublished - Aug 1 1999
Event2nd ACM International Workshop on Modeling, Analysis and Simulation of Wireless and Mobile Systems, MSWiM 1999 - Seattle, United States
Duration: Aug 20 1999 → …

Publication series

NameProceedings of the 2nd ACM International Workshop on Modeling, Analysis and Simulation of Wireless and Mobile Systems, MSWiM 1999

Conference

Conference2nd ACM International Workshop on Modeling, Analysis and Simulation of Wireless and Mobile Systems, MSWiM 1999
Country/TerritoryUnited States
CitySeattle
Period8/20/99 → …

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Modeling and Simulation
  • Computer Networks and Communications

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