摘要
LoRa无线技术的数据传输速率低,适合星型组网,现有的星型网络防碰撞轮询机制在大容量网络中性能不佳。基于信道竞争退避算法和分簇混合路由两方面,提出了适合LoRa网络的数据传输防碰撞算法,能自适应网络流量的变化。通过NS2软件仿真验证,在大容量LoRa网络中,算法改善了能耗、吞吐量和传输延时等方面的性能,提高了数据传输效率。
LoRa wireless technology has low data transmission rate, which is suitable for star type networking. The existing star type network anti-collision polling mechanism has poor performance in large capacity network. Based on two aspects of channel competition avoidance algorithm and clustering hybrid routing,a data transmission anticollision algorithm suitable for LoRa network is proposed, which can adapt to the change of network traffic. Through NS2 software simulation verification, in large capacity LoRa network, the algorithm improves the performance of energy consumption, throughput and transmission delay, and improves efficiency of data transmission.
作者
李敬兆
刘伟
LI Jing-zhao;LIU Wei(School of Electrical and Information Engineering, Anhui University of Science and Technology, Huai＇ nan 232001, China)
出处
《传感器与微系统》
CSCD
2018年第5期147-150,157,共5页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(61170060)
安徽省学术与技术带头人学术科研活动资助项目(2015D046)
安徽省高等学校优秀拔尖人才资助项目(GXBJZD2016044)
关键词
低功耗广域网络
LoRa
数据防碰撞
分簇路由
low power consumption wide area network
LoRa
data anti-collision
clustering routing
