短波信道接入令牌管理策略的研究

在短波IP网络中,信道接入采用令牌管理策略能够取得较高的吞吐率,提高每个节点对信道访问的公平性。但由于短波信道的多变性及长的轮换周期会对令牌的传递造成一定的影响。为了能在短波通信中有效的运用令牌管理策略,在无线令牌环协议(WTRP)的基础上,增加两种机制:令牌中继及环路合并,使得令牌在短波信道的传送过程中,能快速的从干扰中恢复过来,并能克服轮换周期增长对令牌传递的影响。

Research on access token management for HF channel

Token passing is attractive for use in surface-wave naval high-frequency(HF) radio networks due to its potential for high throughput,fairness,and bounded access time.This is a challenging application for token passing,though, due to the dynamic nature of the HF channel and the long link turnarounds that are inherent in fielded COMSEC and HF modems.If token passing is to succeed in this environment,a robust token management protocol will be required that maximizes network availability for all nodes despite packet loss and fluctuating connectivity.