摘要： WiMAX网络和WAVE网络中资源调度方式不同，但又需要在移动网关节点处进行互通。为此，提出一种基于反馈的两级资源调度机制。在WiMAX网络中采用基于权重的轮询调度，针对WAVE网络提出一种基于反馈的EDCA接入方式，使节点各业务的发送速率契合WiMAX网络中的调度规则。仿真结果表明，相比同类方法，该机制使系统的平均传输时延降低至20 ms，网关节点处的排队队长缩短了50%。

关键词: 异构车载自组网, 移动网关, 两级资源调度, 基于权重的轮询, 反馈, WiMAX网络, WAVE网络

Abstract: The resource scheduling mechanisms used in WiMAX network and Wireless Access in Vehicular Environments (WAVE) network are different. Aiming at the need of interoperability in the mobile gateway, a feedback based two-level scheduling mechanism is proposed. A weight-based round-robin scheduling is used in WiMAX network, while a feedback-based EDCA access scheme is designed in WAVE network to adjust transmission rate of MAC layer in WAVE to accommodate scheduling scheme used in WiMAX. Simulation results indicate that compared with other methods, the proposed scheme can reduce the average delay below to 20 ms, and cut 50% queue length in gateway node.

Key words: heterogeneous Vehicular Ad-hoc Network(VANET), mobile gateway, two-level resource scheduling, weight-based round-robin, feedback, WiMAX network, Wireless Access in Vehicular Environments(WAVE) network

中图分类号: 

• TP393