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题名: Reliable transmission scheduling for multi-channel wireless sensor networks with low-cost channel estimation
作者: Zhang XL(张晓玲) ; Liang W(梁炜) ; Yu HB(于海斌) ; Feng XS(封锡盛)
作者部门: 工业控制网络与系统研究室
刊名: IET COMMUNICATIONS
ISSN号: 1751-8628
出版日期: 2013
卷号: 7, 期号:1, 页码:71-81
收录类别: SCI ; EI
产权排序: 1
摘要: The shared-medium nature and complex wireless environment of wireless sensor networks (WSNs) poses fundamental challenges to the design of effective transmission scheduling algorithms that are optimised with respect to superframe length and reliability. In this study, the authors propose an adaptive and reliable transmission scheduling algorithm for WSNs based on low-cost estimation of channel states. The authors establish a hierarchical scheduling framework on global centralised timeslot scheduling and local distributed channel scheduling. On the one hand, global centralised timeslot scheduling aims to guarantee global optimality of resource allocation, during which a mathematical reliability model is built to avoid resource waste by the stationary allocation method and improve the reliability of packet transmission. On the other hand, local distributed channel scheduling shares the responsibility of resource allocation. During channel scheduling, the channel model is constructed by the dynamic programming method and takes both probing cost and channel quality into consideration, which alleviates the uncertain and time-varying interference and overcomes the blindness of traditional methods. In contrast with previous works that do not consider link reliability and channel probing cost and often assume two channel states, the scheduling algorithm performs reliably for an arbitrary number of channels and arbitrary number of channel states. Extensive simulations and experiments under a variety of network environments have been conducted to validate our theoretical claims.
语种: 英语
WOS记录号: WOS:000318227500009
WOS标题词: Science & Technology ; Technology
类目[WOS]: Engineering, Electrical & Electronic
关键词[WOS]: SYSTEMS
研究领域[WOS]: Engineering
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/12542
Appears in Collections:工业控制网络与系统研究室_期刊论文

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Recommended Citation:
张晓玲; 梁炜; 于海斌; 封锡盛.Reliable transmission scheduling for multi-channel wireless sensor networks with low-cost channel estimation,IET COMMUNICATIONS,2013,7(1):71-81
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文件名: Reliable transmission scheduling for multi-channel wireless sensor networks with low-cost channel estimation.pdf
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