期刊文献+

一种定向网络动态时分信道接入机制 被引量:2

A Dynamic-TDMA MAC Mechanism for Directional Networks with a Central Node
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摘要 无人机编队飞行时,可由控制站作为中心,通过定向天线与无人机交换遥控遥测信息。提出一种适用于有中心定向网络的动态时分信道接入机制,在没有同步装置时,结合异步、同步2种邻居发现算法进行邻居发现。动态分配信道,对不同优先级业务提供服务质量(Qo S)保障,提高时隙利用率;能够实现空间复用,解决定向天线存在的队列头阻塞问题,提高空间复用效率,很大程度上改善网络性能。在EXata网络仿真平台上进行了仿真验证,仿真结果表明,该算法能够有效提高网络吞吐量,降低时延。 Using directional antennas,control station can act as a central node and exchange remote information with UAV fleet during the flight.The paper proposes a Dynamic-TDMA (D-DTDMA) MAC mechanism for directional networks without synchronous equipment,which combines asynchronous and synchronous neighbor discovery algorithms.D-DTDMA implements a dynamic slot assign- ment algorithm,which provides QoS for traffics of different priorities,and has a high utilization of slot.h also realizes spatial reuse and solves the " head-of-line blocking" problem, obtaining a better network performance. Simulations on the Exata network simulation platform show that the algorithm can significantly increase the network throughput and reduce the delay.
出处 《无线电工程》 2015年第9期24-29,共6页 Radio Engineering
基金 国家部委基金资助项目
关键词 定向网络 动态时隙分配 邻居发现 空间复用 队列头阻塞 网络仿真 directional network dynamic slot assignment neighbor discovery spatial reuse head-of-line blocking network simulation
作者简介 王宝玺 男,(1990-),硕士研究生。主要研究方向:飞行器测控技术、移动自组网通信。 文运丰 男,(1966-),研究员。主要研究方向:遥控遥测通信、移动自组网。
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参考文献20

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二级参考文献22

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