Title :
C3F2-DMAC: Clustered Contention and Contention Free Fully Decentralized MAC for The 3M Environment: real-time Multimedia, Multi-hop, and Mobile
Author :
Farrag, Osama ; Amico, William D. ; Benmohamed, Lotfi
Author_Institution :
Res. & Technol. Dev. Center, Johns Hopkins Univ., Laurel, MD
Abstract :
In this paper we describe a novel medium access control (MAC) solution for establishing a wireless LAN capable of supporting contention and contention free access on the same channel for use in mobile ad-hoc networks (MANET). This new MAC protocol is fully decentralized and allows any number of mobile stations to share a common wireless channel and collaborate in managing its resources. These stations will partition the channel bandwidth into non contiguous contention free periods (CFP) and contention periods (CP). Each CFP is assigned exclusively for one station to transmit data to other stations within range. Each CFP will occur at fixed periodic interval and transmission during CFP will not be preceded by random back-off period. Stations may contend to transmit data using CSMA/CA method during any CP. The stations will self-organize into clusters and will employ distributed algorithms to share the channel capacity in temporal and spatial dimensions to avoid interference and collisions. This clustered contention and contention free fully decentralized MAC (C3F 2-DMAC) protocol allows mobile stations managing the channel to efficiently establish a common time reference and maintain common state information regarding current allocation of channel resources in terms of duration and timing of each CFP and its assignment to a mobile station
Keywords :
ad hoc networks; carrier sense multiple access; channel allocation; channel capacity; distributed algorithms; interference suppression; mobile radio; multimedia communication; resource allocation; telecommunication congestion control; telecommunication network management; wireless channels; C3F2-DMAC; CFP; CSMA-CA method; MANET; carrier sense multiple access-collision avoidance; channel capacity; clustered contention-contention free protocol; contention free period; data transmission; distributed algorithm; fully decentralized MAC protocol; interference avoidance; medium access control solution; mobile ad-hoc network; mobile station; multihop communication; real-time multimedia; resource management; wireless LAN; wireless channel; Access protocols; Ad hoc networks; Bandwidth; Collaboration; Media Access Protocol; Mobile ad hoc networks; Multiaccess communication; Resource management; Wireless LAN; Wireless application protocol; Decentralized Medium Access Control; IEEE802.11 standard; Mobile Ad-hoc Multi-hop wireless Networks; Quality of Service; clustered TDMA network; mobile network architectures; time division multiple access;
Conference_Titel :
Military Communications Conference, 2006. MILCOM 2006. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
1-4244-0617-X
Electronic_ISBN :
1-4244-0618-8
DOI :
10.1109/MILCOM.2006.302099
