研究了在时变瑞利衰落信道下，存在反馈时延的选择发送分集（STD）系统的性能。
The performance of selective transmit diversity(STD) with feedback delay is investigated under time-varying Rayleigh channel.
CAP以轮询及动态tdma方式为各节点安排发送时隙，采用微时隙为处于空闲状态的节点保持连接以降低时延。
The CAP schedules packet transmission based on the polling mechanism and dynamic TDMA, and a mini-slot is used to keep connectivity when an MT is idle, thus, the access delay is reduced.
为解决无线网络中长传播时延所带来的信道资源利用率低的问题，提出一种基于快速预约按需发送（FRODT）的媒质接入控制（MAC）协议。
To solve low channel utilization problem caused by long propagation delay in wireless networks, a fast reservation on-demand transmission (FRODT) medium access control (MAC) protocol is proposed.
这里的时延既包括从终端发送状态信息到控制台的时延，也包括从控制台发送控制指令到终端的时延。
The delay contains both the delay of transmitting state information from the terminal to the console and the delay of transmitting control information from the console to the terminal.
这里的时延既包括从终端发送状态信息到控制台的时延，也包括从控制台发送控制指令到终端的时延。
The delay contains both the delay of transmitting state information from the terminal to the console and the delay of transmitting control information from the console to the terminal.
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