Title :
The VoIP Model Research Based on Finite Birth-Death Processes in Multi-channel Wireless Mesh Networks
Author :
Shen, Bin ; Wang, Rui ; Luo, Huiqiong ; Yang, Shouhong ; Peng, Fei
Author_Institution :
Comput. Sci. & Eng. of UESTC, UESTC, Chengdu, China
Abstract :
In multi-hop wireless networks, using single-channel with single-transceiver over MAC protocol will generate instability of TCP throughput and serious unfair henomenon. Fortunately the situation can be greatly improved by the use of multi-channel model. In this paper, we established a model under limited-state Markov chain, focusing on the channel utilization, average queue time and average queue length in a given client count and the number of channel available to analyze the VoIP Quality-of-Service in detail. With Monte-Carlo Method to validate, we conclude that multi-channel model can significantly improve the overall of network capacity.
Keywords :
Internet telephony; Monte Carlo methods; access protocols; channel capacity; quality of service; transceivers; wireless mesh networks; MAC protocol; Monte-Carlo method; TCP throughput; VoIP model research; VoIP quality-of-service; average queue length; average queue time; channel utilization; finite birth-death process; limited-state Markov chain; multichannel wireless mesh networks; multihop wireless networks; network capacity; single-transceiver; Bandwidth; Computer science; Constraint optimization; Media Access Protocol; Quality of service; Queueing analysis; Spread spectrum communication; Transceivers; Wireless mesh networks; Wireless networks; Birth-Death Processes; Monte-Carlo Method; Multi-channel; Wireless Mesh Network;
Conference_Titel :
Information Science and Engineering (ISISE), 2009 Second International Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-6325-1
Electronic_ISBN :
978-1-4244-6326-8
DOI :
10.1109/ISISE.2009.125
