Utilization based duty cycle tuning MAC protocol for wireless sensor networks

Shih Hsien Yang, Hung Wei Tseng, Eric Hsiao Kuang Wu, Gen Huey Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

63 Scopus citations


In this paper, we propose U-MAC, a medium access control protocol designed for wireless sensor networks. Nowa-days, wireless sensor network are formed by a great quantity of sensor nodes, which are generally battery-powered and may not recharge easily. Consequently, how to prolong the lifetime of the nodes is an important issue while designing a MAC protocol. However, lowering the energy consumption may result in higher latency. Addressing on such tradeoff, U-MAC balances the tradeoff by utilization based tuning of duty cycle and selective sleeping after transmission. The experiment results show that our proposed U-MAC saves energy about 43% and reduce latency by 65% from S-MAC in a chain topology. In the cross topology, U-MAC also achieves 32% energy saving and 45% latency reduction from S-MAC.

Original languageEnglish
Title of host publicationGLOBECOM'05
Subtitle of host publicationIEEE Global Telecommunications Conference, 2005
Number of pages5
StatePublished - 2005
EventGLOBECOM'05: IEEE Global Telecommunications Conference, 2005 - St. Louis, MO, United States
Duration: 28 Nov 20052 Dec 2005

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference


ConferenceGLOBECOM'05: IEEE Global Telecommunications Conference, 2005
Country/TerritoryUnited States
CitySt. Louis, MO


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