DocumentCode :
1637927
Title :
Bandwidth partitioning in a wireless voice-data integrated system
Author :
Sun, Li-Hsiang ; Schwartz, Mischa
Author_Institution :
Center for Telecommun. Res., Columbia Univ., New York, NY, USA
Volume :
1
fYear :
2001
fDate :
6/23/1905 12:00:00 AM
Firstpage :
32
Abstract :
We have developed a linear programming procedure to partition bandwidth to voice and data connections in a wireless integrated system in order to minimize voice delay and maximize data throughput with voice packet loss constrained. Results show that the linear programming performance can be approached quite closely by a simple round-robin scheme with adaptive threshold. An analytical procedure is developed for the round-robin scheme in order to determine the threshold, based on the number of voice connections. Simulation results indicate that when the number of connections or state space is large, the threshold value can be approximated by extrapolating linearly with a slope which equals the average rate of a connection. The round- robin scheme with adaptive threshold is thus shown to be a well-performing and easily-implementable scheme.
Keywords :
adaptive systems; cellular radio; digital simulation; integrated voice/data communication; linear programming; multiuser channels; packet radio networks; quality of service; time division multiple access; QoS; TDMA cellular system; adaptive threshold; average connection rate; bandwidth partitioning; data throughput maximization; error probability; linear programming; round-robin scheme; simulation results; state space; voice connections; voice delay minimization; voice packet loss; wireless voice-data integrated system; Adaptive scheduling; Bandwidth; Base stations; Delay systems; Downlink; Ear; Linear programming; Speech analysis; Sun; Throughput;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
ISSN :
1090-3038
Print_ISBN :
0-7803-7005-8
Type :
conf
DOI :
10.1109/VTC.2001.956549
Filename :
956549
Link To Document :
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