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Performance evaluation and comparison of the R-ISA multiaccess protocol for packet radio

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4 Author(s)
Aicardi, M. ; Dept. of Commun., Comput. & Syst. Sci., Genoa Univ., Italy ; Davoli, F. ; Giordano, A. ; Zappatore, S.

The R-ISA (radio-net-independent stations algorithm) access protocol has been developed and used to support effectively the interconnection of several PCs or workstations to a service station on a local area network through a shared radio channel. The basic characteristics are the alternate use of the channel by the central station and the peripheral population, the use of binary channel feedback, and the distributed calculation of the access rights for the peripheral stations on the basis of a vector of individual presence probabilities of packets, under an independence assumption. Explicit use is made of the a priori information on the packet generation rate σ at each peripheral station (in practice, an estimate of this quantity is periodically constructed); disconnected stations are assigned a default value σd. Extensive simulation results are provided and used to assess the dependence of performance on σd and other parameters and to compare the protocol with other protocols

Published in:

Electrotechnics, 1988. Conference Proceedings on Area Communication, EUROCON 88., 8th European Conference on

Date of Conference:

13-17 Jun 1988