Title :
Utilization based duty cycle tuning MAC protocol for wireless sensor networks
Author :
Yang, Shih-Hsien ; Tseng, Hung-Wei ; Wu, Eric Hsiao-Kuang ; Chen, Gen-Huey
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ., Taipei
Abstract :
In this paper, we propose U-MAC, a medium access control protocol designed for wireless sensor networks. Nowadays, 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
Keywords :
access protocols; energy conservation; telecommunication network topology; tuning; wireless sensor networks; MAC protocol; chain topology; cross topology; duty cycle; energy consumption; latency reduction; medium access control protocol; selective sleeping; sensor nodes; sensor-MAC; utilization based tuning; wireless sensor networks; Access protocols; Computer science; Delay; Energy consumption; Media Access Protocol; Sensor phenomena and characterization; Sleep; Topology; Wireless application protocol; Wireless sensor networks;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1578377
