一种新的基于虚拟多信道的无线自组织网络

A novel self-organized network based on virtual multiple-channel structure

为了提高灾后应急通信网络频率资源利用效率,提出了基于多信道技术的虚拟多信道ad hoc网络方案。该方案采用单个控制信道和多个数据信道的虚拟多信道结构,通过跳频生成器实现收发机在不同跳频序列之间动态切换。控制信道使用所属子网占用的跳频序列,数据信道使用空闲跳频序列。设计了虚拟多信道路由协议VMCRP,提出了新的路由度量标准VMCM和控制信道分相广播机制CCSP。仿真结果表明:与传统网络相比,本方案能大幅增加网络容量和提升网络吞吐量。

To improve code resource utilization efficiency in disaster cure network, a virtual multiple-channel networking scheme was proposed based on multi-channel technique. This scheme employed virtual muhiple-channel structure with single con- trol channel and multiple data channels, and designed a special frequency hopping generator to make transceiver switch to different FH sequences. Control channel employed the FH sequence its own subnet occupies, and data channel used unused FH sequences. For this networking scheme, this paper proposed a virtual multiple-channel routing protocol VMCRP, which consists of a new rout- ing metric VMCM and a control-channel split-phase broadcast mechanism CCSP. The simulation results show that compared with traditional self-organized network, the proposed network can improve the network capacity and throughput significantly.