Adaptive MAC Protocols Using Memory for Networks with Critical Traffic

Details Adaptive MAC Protocols Using Memory for Networks with Critical Traffic Adaptive MAC Protocols Using Memory for Networks with Critical Traffic

2010-05-05

arxiv.org/abs/1005.0693v1

Computer Science

Networking and Internet Architecture

24 pages, 7 figures, 1 table

Scientific paper

We consider wireless communication networks where network users are subject to critical events such as emergencies and crises. If a critical event occurs to a user, the user needs to send critical traffic as early as possible. However, most existing medium access control (MAC) protocols are not adequate to meet the urgent need for data transmission by users with critical traffic. In this paper, we devise a class of distributed MAC protocols that achieve coordination using the finite-length memory of users containing their own observations and traffic types. We formulate a protocol design problem and find optimal protocols that solve the problem. We show that the proposed protocols enable a user with critical traffic to transmit its critical traffic without interruption from other users after a short delay while allowing users to share the channel efficiently when there is no critical traffic. Moreover, the proposed protocols require short memory and can be implemented without explicit message passing.

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