基于首要信道的无线认知传感器网络多信道广播协议  

Multi-channel broadcast protocol for CRSN based on home channel

作　　者：普健杰[1] 曾凡仔[1] 

机构地区：[1]湖南大学嵌入式与网络计算湖南省重点实验室,湖南长沙410082

出　　处：《通信学报》2013年第7期81-86,共6页Journal on Communications

基　　金：国家自然科学基金资助项目(61173012);湖南省自然科学重点基金资助项目(12JJA005);湖南省高校创新平台开放基金资助项目(10K015)~~

摘　　要：针对无线认知传感器网络的资源有限性和频谱动态分配,提出了基于首要信道半双工的无线认知传感器网络广播协议。在没有公共信道和时钟同步的情况下,该协议通过单个收发机的收发状态转换和信道表的交换进行网络的初始化。经过网络初始化,节点由首要信道形成拓扑,节点通过首要信道以半双工数据传送方式进行广播。仿真实验表明,与完全广播相比,该协议降低了广播延迟和开销,更利于应用于无线认知传感器网络。In the light of the limited resources and the dynamic spectrum distribution in the CRSN, a half duplex multi-channel broadcast protocol for CRSN was proposed based on the home channel theory. In the absence of the com- mon channel and clock synchronization, the proposed protocol initialized the network through the transitions of the send- ing and receiving state of the single transceiver and the exchanges of the channel table. After network initialization, the topology of nodes was formed based on home channel. Nodes broadcast through home channel based on half duplex data transfer mode. According to the simulation results, it is proved that, compared with complete broadcast, the proposed pro- tocol effectively improves the success rate of broadcast and reduces broadcast delay and overhead, which gets better per- formance in practical application of CRSN.

关 键 词：认知无线传感器网络 首要信道广播 完全广播 单收发机 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]