Title :
Evaluation of performance on random back-off interval and multi-channel CSMA/CA protocols
Author :
Xiaofan, Wang ; Chong, Peter H J ; Yie, Leong Wai
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
Carrier sense multiple access with collision avoidance (CSMA/CA) is one of the basic media access control (MAC) protocols specified in the IEEE 802.11 to support many stations to share a channel in the network. This paper analyzes how the performance of CSMA/CA is affected by the back-off time. We propose to use random back-off time and simulation results show that it can achieve better performance with shorter delay. In the second part of the paper, we implement multichannel CSMA/CA through simulation and use Markov chain analysis to model the performance. It has been found both random back-off time and multi-channel protocols offer improvements over a system using original CSMA/CA. Therefore, we combine the two methods mentioned above and simulation shows the performance is further improved with for multi-channel CSMA/CA system random back-off interval.
Keywords :
Markov processes; carrier sense multiple access; random processes; telecommunication congestion control; wireless LAN; IEEE 802.11; Markov chain analysis; carrier sense multiple access; collision avoidance; media access control protocols; multichannel CSMA/CA protocols; performance evaluation; random back-off interval; random back-off time; Access protocols; Analytical models; Collision avoidance; Data engineering; Manufacturing; Media Access Protocol; Multiaccess communication; Performance analysis; Wireless LAN; Wireless networks; CSMA/CA; Markov chain analysis; back-off interval; multi-channel;
Conference_Titel :
TENCON 2009 - 2009 IEEE Region 10 Conference
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-4546-2
Electronic_ISBN :
978-1-4244-4547-9
DOI :
10.1109/TENCON.2009.5396103
