John Heidemann

Medium Access Control in Wireless Sensor Networks

TitleMedium Access Control in Wireless Sensor Networks
Publication TypeTechnical Report
Year of Publication2003
AuthorsW. Ye, and J. Heidemann
Date Publishedoct

This paper reviews medium access control (MAC), an enabling technology in wireless sensor networks. MAC protocols control how sensors access a shared radio channel to communicate with neighbors. Battery-powered wireless sensor networks with many nearby nodes challenge traditional MAC design. This paper discusses design trade-offs with an emphasis on energy efficiency. It classifies existing MAC protocols and compares their advantages and disadvantages in the context of sensor networks. Finally, it presents S-MAC as an example of a MAC protocol designed specifically for a sensor network, illustrating one combination of design trade-offs.