improvised reliability in multicast networks using busy tone mechanism
Basharat Bashir,
Published in International Journal of Advanced Research in Computer Networking,Wireless and Mobile Communications
ISSN: 2320-7248 Impact Factor:1.8 Volume:3 Issue:1 Year: 20 December,2016 Pages:176-179
Abstract
Wireless adhoc Networks (WANs) have evolved as one of the most advanced field in wireless communications. They consist of a number of static wireless routers which form an access network for end users to IP-based services. A new MAC protocol called RMAC that supports reliable multicast for wireless ad hoc networks has been introduced in this paper. RMAC employs the busy tone mechanism to realize multicast reliability and has the three characteristics: (1) it uses a variablelength control frame to specify an order for the receivers to respond, thereby solving the problem of feedback collision (2) By extending the traditional usage of busy tone, to prevent data frame collisions in the multicast scenario; also introducing a new use of busy tone mechanism for acknowledging data frames. Additionally, the RMAC can be generalized into a comprehensive MAC protocol providing both reliable and unreliable services for all the three modes of communication: unicast, multicast, and broadcast. The evaluations of this paper shows that RMAC achieves a high degree of reliability with very limited overhead. Also, by comparing RMAC with other reliable multicast MAC protocols shows that RMAC not only provides higher reliability but also results in decrease of cost. This paper focuses on using ARQ technique to implement the MAC layer reliable multicast for wireless adhoc networks where the number of one-hop multicast receivers is not very large. Examples of such adhoc networks include battlefield ad hoc networks, emergency rescue networks, sparse sensor networks, etc.
Kewords
component adhoc network,multicasting, mesh networks, MAC
Reference
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