计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2013年
21期
37-41
,共5页
物联网%智能抄表系统%媒体接入%高效时分多址%分布式协同调度
物聯網%智能抄錶繫統%媒體接入%高效時分多阯%分佈式協同調度
물련망%지능초표계통%매체접입%고효시분다지%분포식협동조도
Internet of Things%smart meter reading system%Media Access Control(MAC)%effective Time Division Multiple Access(TDMA)%distributed cooperative scheduling
针对基于物联网的智能抄表系统节点众多、可靠性要求高、网络拓扑多变的特点,提出了一种用于智能抄表系统的高效时分多址E-TDMA协议。该协议基于Mesh网络架构,采用分布式协同调度的方式局部调整节点的时隙分配,并能进行网络拓扑调整。此外,E-TDMA还提供差异服务。采用NS2对协议进行仿真比较,结果显示,E-TDMA具有更好的性能,为基于物联网的智能抄表系统提供了高效的信道接入和可靠的质量保证。
針對基于物聯網的智能抄錶繫統節點衆多、可靠性要求高、網絡拓撲多變的特點,提齣瞭一種用于智能抄錶繫統的高效時分多阯E-TDMA協議。該協議基于Mesh網絡架構,採用分佈式協同調度的方式跼部調整節點的時隙分配,併能進行網絡拓撲調整。此外,E-TDMA還提供差異服務。採用NS2對協議進行倣真比較,結果顯示,E-TDMA具有更好的性能,為基于物聯網的智能抄錶繫統提供瞭高效的信道接入和可靠的質量保證。
침대기우물련망적지능초표계통절점음다、가고성요구고、망락탁복다변적특점,제출료일충용우지능초표계통적고효시분다지E-TDMA협의。해협의기우Mesh망락가구,채용분포식협동조도적방식국부조정절점적시극분배,병능진행망락탁복조정。차외,E-TDMA환제공차이복무。채용NS2대협의진행방진비교,결과현시,E-TDMA구유경호적성능,위기우물련망적지능초표계통제공료고효적신도접입화가고적질량보증。
Smart meter reading system based on Internet of Things contains large number of nodes, and requires high reliability. In the system, network topology is variable. This paper presents E-TDMA, an efficient TDMA protocol, for the smart meter reading system. Based on Mesh network architecture, E-TDMA partly adjusts the slot allocation by distributed cooperative scheduling, and adjusts network topology if necessary. Besides, E-TDMA provides differentiated services. NS2 simulation results show that E-TDMA outperforms TDMA, and provides efficient channel access and reliable QoS for the smart meter reading system based on Internet of Things.