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60GHz频段的毫米波通信已成为短距离无线通信领域新的研究热点,方向性媒质接入控制(MAC)协议是其中一项关键技术。该文提出一种基于启发式调度算法的毫米波无线个域网方向性MAC协议,能够实现充分的空分复用。该协议中的启发式调度算法能以较低复杂度得到发送延时接近最优的调度方案。仿真结果表明:与现有协议相比,该协议可以有效降低网络延迟,提高网络吞吐量,同时保持较好的公平性。
The millimeter-wave communication in the 60GHz band has become a new research hotspot in the field of short-range wireless communications. The directional medium access control (MAC) protocol is one of the key technologies. In this paper, a direction-based MAC protocol for millimeter-wave wireless personal area network based on heuristic scheduling algorithm is proposed, which can realize sufficient space division multiplexing. The heuristic scheduling algorithm in this protocol can get the scheduling solution with the best transmission delay with lower complexity. The simulation results show that compared with the existing protocols, this protocol can effectively reduce the network delay and improve the network throughput, while maintaining good fairness.