基于IEEE 802.15.4协议的混合MAC算法研究
首发时间:2016-12-08
摘要:结合CSMA与TDMA的优点,本文提出了一种基于IEEE 802.15.4协议的混合MAC协议。通过解析数据帧中的附加信息,协调器评估出各个节点的数据量,自适应地为节点分配大时隙。此外,允许多个节点共用大时隙,节点间采用CSMA-CA的方法竞争接入信道。最后,NS-2仿真结果表明,使用CSMA/TDMA混合MAC算法能有效地改善信道质量,提高网络可靠性。
关键词: IEEE 802.15.4 MAC CSMA TDMA
For information in English, please click here
The Research of Hybrid MAC Algorithm for IEEE 802.15.4 Protocol
Abstract:This paper proposes a hybrid MAC algorithm based on IEEE 802.15.4 protocol by combining the advantage of CSMA and TDMA. By parsing the additional information in the data frame, the coordinator evaluates the amount of data for each node, adaptively allocating big slots for the nodes. In addition, a large number of nodes are allowed to share a big slot, and nodes adopt the CSMA-CA method to compete for the access channel. Finally, NS-2 simulation results show that CSMA/TDMA hybrid MAC algorithm can improve the channel quality and network reliability.
Keywords: IEEE 802.15.4 MAC CSMA TDMA
基金:
论文图表:
引用
No.4712629117397314****
同行评议
共计0人参与
勘误表
基于IEEE 802.15.4协议的混合MAC算法研究
评论
全部评论0/1000