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Analysis and performance comparison of the RRA-ISA multiple access protocol for packet voice and data cellular systems

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5 Author(s)
Bolla, R. ; Dept. of Commun., Comput. & Syst. Sci., Genoa Univ., Italy ; Davoli, F. ; Iscra, A. ; Nobile, C.
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A multiple access protocol based on a reservation random access (RRA) scheme is derived, and its performance is evaluated and compared by simulation to that of other protocols operating within the same environment. Given a TDMA framed channel and a cellular structure, the aim of the protocol is that of maximizing the one-step throughput over an entire frame. This is achieved by deciding on the access rights at the base station, which then broadcasts this information at the beginning of the frame. The decision is made on the basis of binary channel feedback information (collision/no collision) over the previous frames, as well as of long term averages of packet generation rates at the mobile stations, assuming independence in the presence of packets at the latter. The scheme is analysed by simulation in the presence of voice and data traffic. Several comparisons show a relevant performance improvement (in terms of data delay and maximum number of voice stations acceptable within a cell) over other protocols that use ALOHA as a reservation mechanism (RRA-ALOHA or PRMA schemes)

Published in:

Personal, Indoor and Mobile Radio Communications, 1995. PIMRC'95. Wireless: Merging onto the Information Superhighway., Sixth IEEE International Symposium on  (Volume:1 )

Date of Conference:

27-29 Sep 1995