Title :
MAC-ASA: A New MAC Protocol for WMNs
Author :
Santamaría, Roberto ; Bourdeau, Olivier ; Anjali, Tricha
Author_Institution :
Illinois Inst. of Technol. Chicago, Chicago
Abstract :
This paper presents a novel medium access control (MAC) protocol intended to provide multi-hop wireless mesh networks with a higher throughput. The proposed MAC-ASA (medium access control with anticipated scheduling and agreement) protocol uses a modified version of the 802.11 CSMA/CA contention handling procedure integrated with a dynamic (time division multiple access) TDMA-like protocol structure. It combines distributed link scheduling algorithm with power control support for router -router communications with a self agreement protocol for the client -router communications. In addition, the proposed algorithm solves the "exposed node" problem by applying multiple frequencies and time saving policies. These features result in a significant improvement of the throughput in many scenarios. Performance results from an OPNET model are presented in this paper.
Keywords :
protocols; radio networks; telecommunication network routing; time division multiple access; 802.11 CSMA-CA contention handling procedure; MAC protocol; TDMA-like protocol; WMN network; client -router communication; distributed link scheduling algorithm; medium access control; multihop wireless mesh network; router -router communication; time division multiple access; Access protocols; Dynamic scheduling; Media Access Protocol; Multiaccess communication; Scheduling algorithm; Spread spectrum communication; Throughput; Time division multiple access; Wireless application protocol; Wireless mesh networks;
Conference_Titel :
Computer Communications and Networks, 2007. ICCCN 2007. Proceedings of 16th International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-1251-8
Electronic_ISBN :
1095-2055
DOI :
10.1109/ICCCN.2007.4317944
