低占空比无线传感器网络中MAC协议研究进展  

Research progress of MAC protocolsin low-duty-cycle wireless sensor networks

作　　者：梁俊斌[1] 刘晓东[1] 李陶深[1] 蒋婵[1] LIANG Junbin;LIU Xiaodong;LI Taoshen;JIANG Chan(School of Computer and Electronics Information, Guangxi University, Nanning 530004, Chin)

机构地区：[1]广西大学计算机与电子信息学院,广西南宁530004

出　　处：《电视技术》2017年第11期88-94,共7页Video Engineering

基　　金：国家自然科学基金项目(61562005);广西自然科学基金项目(2015GXNSFAA139286);广西高校科技研究项目(KY2015YB486);广西高等学校优秀中青年骨干教师培养工程

摘　　要：无线传感器网络(WSN)是一种多跳自组织网络,它由大量具有有限能力的节点组成,在工业、农业、交通、国防等领域具有广泛应用。为了减少节点的能量消耗,延长网络的生命周期,近年来逐渐出现了基于低占空比技术(Low-Duty-Cycle)的WSN,简称LDC-WSN。在LDC-WSN中,节点在一个工作周期内大部分时间处于睡眠状态,只有极少时间内处于工作状态。MAC协议是实现LDC-WSN中节点睡眠调度的关键,对LDC-WSN保持正常工作并获得理想的工作性能具有非常重要的意义。针对LDC-WSN中MAC协议的研究仍处于起步阶段,是目前研究的热点。对当前研究进行综述,详细介绍和分析LDC-WSN中最具代表性和较新的MAC协议。通过对比和总结当前工作的优缺点,明确了目前存在的问题和难点,为未来更深入的研究指明了方向。Wireless sensor network （WSN） is a multi-hop ad-hoc network,which consists of a large number of nodes.The nodes just have limited capabilities.WSN has wide range of applications in industry,agriculture,transportation,national defense and other fields.In order to reducing the energy consumption of nodes and prolonging the network lifetime,a new network named LDC -WSN is appeared that is based on the low duty cycle technology in recent years.In LDC-WSN,the nodes will sleep for most of their time in a working cycle,and will just wake up for a little of time.MAC protocol is the key to implement sleep scheduling for the nodes in LDC-WSN,and it has very important significances for maintaining LDC-WSN in normal work status.Moreover,MAC protocol will benefit the network to achieve good performance.Currently,research on the MAC protocols of LDC-WSN is a hotspot.This paper summarizes current research,and analyzes the most typical and the newest works of MAC protocols in LDC-WSN.By comparing and summarizing the advantages and disadvantages of these works,we clarify the existing problems and difficulties in research.Finally,we discuss future research and give some suggestions.

关 键 词：低占空比无线传感器网络 MAC协议 研究进展 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术]