A distributed load-based transmission scheduling protocol for wireless ad hoc networks

Authors:
Brian J. Wolf;Joseph L. Hammond;Harlan B. Russell
Affiliations:
Clemson University, Clemson, SC;Clemson University, Clemson, SC;Clemson University, Clemson, SC
Venue:
Proceedings of the 2006 international conference on Wireless communications and mobile computing
Year:
2006

Citing 8
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Abstract

This paper presents a load-based transmission scheduling (LoBaTS) protocol for wireless ad hoc networks. Since terminals in these networks may be required to forward unequal amounts of traffic, a transmission scheduling protocol which assigns equal transmission capacity to all terminals may result in traffic bottlenecks as traffic load increases. The LoBaTS protocol allows terminals to alter their existing transmission schedules so that those terminals which are required to forward more traffic can reserve additional transmission slots, thereby alleviating traffic bottlenecks. The LoBaTS protocol is designed to avoid creation of new traffic bottlenecks, maintain collision-free broadcast transmissions, and execute with minimal disruption to the network. In addition, it requires only local information to operate, making it suitable for implementation in a distributed-control environment. Simulations utilizing a variety of test networks and traffic conditions show that the LoBaTS protocol greatly improves end-to-end packet delay, throughput, and completion rate when compared to a transmission schedule which does not account for traffic load.