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提出一种基于节点物理地址为初始分配信道的动态多组异步多信道媒介访问控制协议(DMAM-MAC).在该协议中,各节点根据自己的物理地址确定初始主信道,并且与同处在一个主信道上的相邻节点构成一个信道组;随着网络运行,各节点根据自身的业务流,动态改变主信道,加入新的信道组,从而有效提高了频率空间复用度.仿真试验证明,与IEEE802.11、AM-CP相比,DMAM-MAC协议在显著提高Ad hoc网络平均吞吐量的同时,还能有效降低数据包平均延迟.
This paper proposes a dynamic multi-group asynchronous multi-channel media access control protocol (DMAM-MAC) based on physical addresses of nodes as the initial distribution channel. In this protocol, each node determines the initial primary channel according to its own physical address, Adjacent nodes on a main channel form a channel group. As the network runs, each node dynamically changes the main channel according to its own service flow and adds a new channel group, thereby effectively improving the frequency-spatial reusability. Simulation results show that Compared with IEEE802.11 and AM-CP, the DMAM-MAC protocol can significantly reduce the average throughput of Ad hoc networks and meanwhile reduce the average packet delay.