Nonpreemptive priority-based access control scheme for broadband ad hoc wireless ATM local area networks

Der-Jiunn Deng, Ruay Shiung Chang

Research output: Contribution to journalArticle

12 Citations (Scopus)


The DQRUMA (distributed-queueing request update multiple access) protocol has been considered as an access protocol for the BAHAMA (broadband ad hoc wireless ATM local area network). However, it cannot support the service discipline of integrated multimedia traffic since it does not include any priority and access control policy. In this paper, we propose a nonpreemptive priority-based access control scheme for DQRUMA protocol. Under such a scheme, modifying the CSMA/CA protocol in the contention period supports many levels of priorities such that user mobility (handoff) can be supported in BAHAMA. Besides, the proposed transmit-permission policy and adaptive bandwidth allocation scheme provide various QoS (quality-of-service) guarantees while maintaining high bandwidth utilization. Simulations show that it provides a good performance in ad hoc wireless ATM LAN environments.

Original languageEnglish
Pages (from-to)1731-1739
Number of pages9
JournalIEEE Journal on Selected Areas in Communications
Issue number9
Publication statusPublished - 2000 Sep 1


All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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