http://scholars.ntou.edu.tw/handle/123456789/20275
Title: | The Barrier-Breach Problem of Barrier Coverage in Wireless Sensor Networks | Authors: | Chien-Fu Cheng Chen-Wei Wang |
Keywords: | Mobile communication;Switches;Schedules;Sensors;Wireless sensor networks;Scheduling algorithms;Algorithm design and analysis;Wireless sensor networks;barrier coverage;barrier-breach problem | Issue Date: | 1-Oct-2017 | Publisher: | IEEE | Journal Volume: | 21 | Journal Issue: | 10 | Start page/Pages: | 2262 - 2265 | Source: | IEEE Communications Letters | Abstract: | When there are multiple barriers in a wireless sensor network (WSN), the sleep-wakeup schedule can be used to alternate working barriers to extend the overall network lifetime. However, when one working barrier is being replaced by another, if any intruder comes into the potential-breach-point between these two barriers, the barrier-breach problem may occur. In this letter, the proposed algorithm uses mobile elements to check presence of intruders at potential-breach-points. Compared with the extant algorithms, the proposed algorithm has two major advantages. First, it does not remove crossing barriers, so the overall network lifetime of barrier coverage can be extended. Second, it does not alternate working barriers always based on the order of barrier's distance to the front side, from near to far, so the sleep-wakeup schedule can be flexibly arranged. |
URI: | http://scholars.ntou.edu.tw/handle/123456789/20275 | ISSN: | 1089-7798 | DOI: | 10.1109/LCOMM.2017.2694432 |
Appears in Collections: | 資訊工程學系 |
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