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Channel Assignment Scheme for Integrated Voice and Data Traffic in Reservation-Type Packet Radio Networks
Hideyuki UEHARA Masato FUJIHARA Mitsuo YOKOYAMA Hiro ITO
IEICE TRANSACTIONS on Communications
Publication Date: 2002/01/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Internet Technology II -- Traffic Control and Performance Evaluation in the Internet)
wireless network, MAC protocol, channel assignment, voice/data traffic,
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In this paper, we propose a channel assignment scheme for integrated voice and data traffic in reservation multiple access protocol. In the proposed scheme, a voice packet never contends with a data packet and takes over the slot which is previously assigned to a data packet. Thus, a larger number of voice terminals can be accommodated without degradation of quality and throughput even in the situation that data were integrated. We evaluate the voice packet dropping probability, throughput and packet delay through computer simulation. The results show that the proposed scheme has better performance than the conventional PRMA and DQRUMA systems.