关键词: 家庭网络, 局域网, 服务质量, 多令牌环, 令牌调度

Abstract:

Some of current available QoS(quality of service) enhancement mechanisms for home network are too simple to provide parameterized QoS features, and the others adopt central polling mechanism which may result in single-point fault and performance bottleneck. Aiming at this situation, a new MAC(media access control) mechanism based on multiple token-rings was proposed. The complex token-scheduling algorithm as well as the corresponding resource allocation and admission control algorithms was designed. The distributed parameterized QoS control was realized. The proposed complex token-scheduling algorithm radically overcomes the drawbacks of simple token-scheduling and has stronger resource-scheduling and service-differentiation capabilities. Simulation results showed that the proposed method can effectively improve utilization efficiency of network bandwidth.

Key words: home network, local area network, quality of service, multiple token-ring, token scheduling