Reservation-based multiple access with variable frame length having flexible adaptability to traffic pattern

Osamu Arakawa, Tsugunao Kobayashi, Iwao Sasase

Research output: Contribution to journalArticle


In this paper, we propose three extended reservation-based multiple access protocols with variable frame length (RMAV) in order to adapt to traffic variation more flexibly. At first, we propose model 1 of the extended RMAV in which the frame length can increase in the next frame as many slots as the terminal needs, while in the conventional RMAV the frame length increases one slot in the next frame. It is shown by computer simulation that the proposed model 1 can attain lower mean message delay and more rapid convergence speed than the conventional RMAV. Next, we propose model 2 of the extended RMAV, which has the function of supporting prioritized traffic and satisfies the different quality of service by using the variable maximum of the slots Rmax,i that the terminal of class i can reserve in one frame. It is shown by numerical analysis and computer simulation that the performance of the higher priority class can surpass that of the lower priority class. Further, to make the reservation more efficiently, we propose model 3 of the extended RMAV, which uses minislots for reservation. It is shown by computer simulation that model 3 can reduce message delay compared to model 1.

Original languageEnglish
Pages (from-to)63-73
Number of pages11
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Issue number3
Publication statusPublished - 2000 Dec 1


ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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