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TA-MAC: Task Aware MAC Protocol for Wireless Sensor Networks

8 years 11 months ago
TA-MAC: Task Aware MAC Protocol for Wireless Sensor Networks
Abstract— In wireless sensor networks (WSNs), reducing energy consumption of resource constrained sensor nodes is one of the most important issues. In this paper, we propose a task aware (TA) MAC protocol, which improves energy efficiency and throughput by introducing a channel access scheme depending on traffic load in WSNs. The amount of traffic load of a sensor node can be estimated by its task activity, where a task is an operation that the sensor node performs based on the schedule set by data dissemination procedures in advance. In addition, the sensor node collects neighbor nodes’ task activities and determines its channel access probability using the collected information. Consequently, the sensor node can choose a more suitable channel access probability which is adaptive to its traffic load as well as neighbor’s traffic load. We carry out performance analysis using a p-persistent MAC protocol. The results reveal that the TA-MAC protocol exhibits less collisions tha...
Sangheon Pack, Jaeyoung Choi, Taekyoung Kwon, Yang
Added 12 Jun 2010
Updated 12 Jun 2010
Type Conference
Year 2006
Where VTC
Authors Sangheon Pack, Jaeyoung Choi, Taekyoung Kwon, Yanghee Choi
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