DocumentCode :
1453188
Title :
Analytical Study of the IEEE 802.11p MAC Sublayer in Vehicular Networks
Author :
Han, Chong ; Dianati, Mehrdad ; Tafazolli, Rahim ; Kernchen, Ralf ; Shen, Xuemin
Author_Institution :
Dept. of Electron. Eng., Univ. of Surrey, Guildford, UK
Volume :
13
Issue :
2
fYear :
2012
fDate :
6/1/2012 12:00:00 AM
Firstpage :
873
Lastpage :
886
Abstract :
This paper proposes an analytical model for the throughput of the enhanced distributed channel access (EDCA) mechanism in the IEEE 802.11p medium-access control (MAC) sublayer. Features in EDCA such as different contention windows (CW) and arbitration interframe space (AIFS) for each access category (AC) and internal collisions are taken into account. The analytical model is suitable for both basic access and the request-to-send/clear-to-send (RTS/CTS) access mode. Different from most of existing 3-D or 4-D Markov-chain-based analytical models for IEEE 802.11e EDCA, without computation complexity, the proposed analytical model is explicitly solvable and applies to four access categories of traffic in the IEEE 802.11p. The proposed model can be used for large-scale network analysis and validation of network simulators under saturated traffic conditions. Simulation results are given to demonstrate the accuracy of the analytical model. In addition, we investigate service differentiation capabilities of the IEEE 802.11p MAC sublayer.
Keywords :
Markov processes; access protocols; wireless LAN; 3D Markov chain; 4D Markov chain; IEEE 802.11p MAC sublayer; RTS/CTS access mode; access category; arbitration interframe space; clear-to-send; contention windows; enhanced distributed channel access; large-scale network analysis; medium-access control; network simulators; request-to-send; saturated traffic conditions; vehicular networks; Accuracy; Analytical models; Computational modeling; IEEE 802.11e Standard; Markov processes; Simulation; Throughput; IEEE 802.11p; performance analysis; vehicular ad-hoc networks (VANETs);
fLanguage :
English
Journal_Title :
Intelligent Transportation Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
1524-9050
Type :
jour
DOI :
10.1109/TITS.2012.2183366
Filename :
6155605
Link To Document :
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