期刊
IEEE COMMUNICATIONS LETTERS
卷 17, 期 9, 页码 1864-1867出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2013.072913.131354
关键词
Wireless sensor networks; mobile sink groups; data dissemination
资金
- Electronics and Telecommunications Research Institute (ETRI)
- Korea government [Development of USN/WoT Convergence Platform for Internet of Reality Service Provision] [13ZC1130]
- National Research Council of Science & Technology (NST), Republic of Korea [13ZC1130] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Mobile sink groups such as rescue teams or platoons bring about a new challenging issue for handling mobility in wireless sensor networks. Recently, a flooding-based technique has been proposed to disseminate data to a mobile sinks group. However, since it simply use flooding of data within the sink group region, it leads to high energy consumption of sensor nodes and low data delivery ratio to sinks due to the broadcast storm problem. Thus, this letter proposes a protocol called Virtual Line-based Data Dissemination (VLDD) to achieve energy-efficient and reliable data dissemination. Instead of flooding, VLDD exploits a Virtual Line Structure (VLS) for data storage within the group region. While sources store their own data on the VLS, each sink retrieves data from the VLS at its location in a time of need. Analysis and simulation results show that VLDD achieves better performance than the existing protocol.
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