ON PERFORMANCE ANALYSIS OF CDMA UNSLOTTED ALOHA SYSTEM WITH BURST RESERVATION

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In this paper, we analyze the performance of a CDMA unslotted ALOHA system with burst reservation. A mobile terminal reserves the channel for the duration of its burst and transmits spread packets. The packets are transmitted in unslotted mode. As the packet transmission of the mobile terminal can be begun at any time, the level of multi-user interference fluctuates during the packet transmission. We, therefore, calculate the bit error probability and throughput by considering not only the number of overlapped packets but also the amount of time overlap. We assume that the generation of bursts is Poisson distributed, the number of packets transmitted at once by a mobile terminal is geometrically distributed, and the packet length is constant. By modeling the system as a Markov chain, we obtain the throughput of CDMA unslotted ALOHA system with burst reservation.
Publisher
IEEE
Issue Date
1999-07
Citation

49th Vehicular Technology Conference, Vol.2, pp.1693-1697

ISBN
0-7803-5565-2
DOI
10.1109/VETEC.1999.780697
URI
http://hdl.handle.net/10203/12510
Appears in Collection
EE-Conference Papers(학술회의논문)
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