无线传感器网络中基于定向扩散协议的跨层拥塞控制方法  

Cross-Layer Congestion Control Approach Based on Directed Diffusion Routing Protocol in WSN

作　　者：叶进[1] 杨婧[1] 宋晓燕[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《传感技术学报》2012年第1期124-128,共5页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61163060);2011年广西区重点项目(D018023)

摘　　要：针对无线传感器网络的拥塞特征,利用跨层设计的思想提出了一种基于定向扩散路由协议的跨层拥塞控制方法。该方法包括局部拥塞控制和全局拥塞控制两部分,在本地节点和Sink节点上进行了基于ACK的拥塞反馈和跨层速率调节。仿真实验表明,该算法不仅能有效地缓解拥塞,降低能耗,而且能保证数据包的完整性,与CODA机制相比能量节省了32.56%,逼真度提高了6%。According to the congestion problem of wireless sensor network, a cross-layer congestion control approach is developed based on the directed diffusion routing protocol. This approach includes local congestion control and global congestion control, which can feedback congestion by ACK and adjust sending rate by cross-layer notification. Simulation experiments show that the proposed approach effectively relieves congestion, reduces the energy consumption of the network and guarantees the packet transmission integrity. Compared to the CODA mechanism,the energy economizes 32.56%, the fidelity increases for 6%.

关 键 词：无线传感器网络 拥塞控制 跨层设计 定向扩散路由协议 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]