期刊
IEEE COMMUNICATIONS LETTERS
卷 15, 期 11, 页码 1169-1171出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2011.092911.110792
关键词
Wireless sensor networks; network sustainability; energy hole problem; data aggregation
资金
- KCC, Korea [KCA-2011-(09913-05003)]
- Korea Communications Agency (KCA) [09-91305003] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Ministry of Public Safety & Security (MPSS), Republic of Korea [C1080-1101-0001] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The energy hole problem is caused by earlier turning off of sensor nodes nearer the sink due to more frequent data transmission, particularly in asynchronous MAC-based Wireless Sensor Networks (WSNs). To resolve this issue, this letter proposes an Energy-aware Hybrid Data Aggregation Mechanism (EHDAM) that is designed to adaptively control the number of data transmission with burst length based and time-out based transmissions. Especially, EHDAM adjusts the burst length threshold value in reciprocal proportion to the remaining energy state of the node so that reducing the number of data transmission; hence, EHDAM extends lifetimes of the nodes affected by the energy hole problem.
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