Title :
A novel priority-based probability back-off MAC protocol
Author :
Cheng Lin ; Chen Jin
Author_Institution :
Postgrad. Team 3 ICE, PLAUST, Nanjing, China
Abstract :
The Distributed Coordination Function (DCF) of IEEE 802.11 is one of most commonly used MAC protocol in channel-shared wireless network, but it can´t support differentiated services among various applications. In this paper, a novel probability back-off MAC protocol is proposed to provide service differentiation as well as enhance the overall system throughput. We analyze our scheme by using a Markov Chain. The simulation results show that our scheme can properly allocate the channel capacity among stations according to different priorities and obtain a better system throughput than IEEE 802.11 DCF, furthermore, it can be adaptive to the alteration (such as proportion of priority classes, number of stations) of network, While any of the other schemes can not.
Keywords :
Markov processes; access protocols; wireless LAN; IEEE 802.11; Markov chain; channel-shared wireless network; distributed coordination function; priority-based probability back-off MAC protocol; Access protocols; Channel capacity; Electronic mail; Ice; Media Access Protocol; Payloads; System performance; Throughput; Wireless application protocol; Wireless networks; IEEE 802.11 DCF; Markov Chain Model; Priority-based; Probability Back-off;
Conference_Titel :
Information Management and Engineering (ICIME), 2010 The 2nd IEEE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-5263-7
Electronic_ISBN :
978-1-4244-5265-1
DOI :
10.1109/ICIME.2010.5477925
