Title :
R-BTMA: a MAC protocol for short-range mobile radio communications
Author :
Tabbane, Sami ; Godlewski, Phillipe
Author_Institution :
Ecole Nat. Superieure des Telecommun., Paris, France
Abstract :
A reservation-Aloha-like (R-Aloha-like) protocol is studied in a decentralized mobile radio network context, with some hypotheses and assumptions and under specific constraints. Periodical traffic with parameter sharing and local communications are special characteristics of the model. The studied system faced problems, such as hidden nodes, fast changes in the network topology, and intervehicle communications. To solve or reduce some of these problems, the R-BTMA MAC protocol is introduced. It uses two distinct physical channels: a data channel and a busy-tone channel for signaling. Simulations are presented to evaluate the R-BTMA performance. The main service considered is parameter sharing with a regular traffic: one packet per frame and per vehicle. Numerical results show the improvements in channel throughput. The reaccess delay is evaluated
Keywords :
mobile radio systems; protocols; R-BTMA MAC protocol; busy-tone channel; channel throughput; data channel; decentralized mobile radio network; intervehicle communications; local communications; network topology; numerical results; parameter sharing; physical channels; reaccess delay; reservation-Aloha-like protocol; short-range mobile radio communications; signaling; simulations; Context; Delay; Land mobile radio; Media Access Protocol; Mobile communication; Network topology; Telecommunication traffic; Throughput; Traffic control; Vehicles;
Conference_Titel :
Vehicular Technology Conference, 1990 IEEE 40th
Conference_Location :
Orlando, FL
DOI :
10.1109/VETEC.1990.110388
