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Title: System throughput analysis of rate adaptive TDMA system supporting two class services
Authors: Ronghong, M.O. 
Chew, Y.H.
Keywords: Adaptive slot duration
Channel allocation
Packet loss
Rate adaptive system
Issue Date: Nov-2005
Citation: Ronghong, M.O., Chew, Y.H. (2005-11). System throughput analysis of rate adaptive TDMA system supporting two class services. Wireless Networks 11 (6) : 687-695. ScholarBank@NUS Repository.
Abstract: In this paper, an adaptive transmission scheme is proposed to improve the spectral efficiency of TDMA systems. Services accommodated in such systems are classified as QoS services and BE services. Unlike conventional adaptive TDMA systems where the time slot duration is fixed for each user, our proposed system employs transmission slots with adaptive duration. For QoS services, rate adaptive modulation is adopted to make use of the instantaneous channel conditions of individual user. For BE services, a media access control strategy (MAC) that takes the instantaneous transmission conditions of all physical links of all BE services into consideration is employed. A framework to study the proposed system in terms of the average packet loss and the average system throughput is presented. The maximum number of QoS services that can be supported in the system while a predefined requirement on the average packet loss is still satisfied is investigated. A comparison study shows that our proposed scheme has higher system throughput over both conventional fixed and adaptive TDMA systems. © 2005 Springer Science + Business Media, Inc.
Source Title: Wireless Networks
ISSN: 10220038
DOI: 10.1007/s11276-005-3523-8
Appears in Collections:Staff Publications

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