In some suitable condition, passive relay system can solve the problem of weak signals coverage without effects the network quality.
在适当场景下，引入无源中继系统可以达到解决弱信号的目的，同时不影响网络质量。
This plan combines the advantage of network coding and enhanced relay, which can improve the reliability and efficiency of wireless communication system.
该方案结合了网络编码和增强性中继的优点，能进一步提高无线通信系统的可靠性和有效性。
The system supplies effective technical means for the scientific management of relay protection operation and better service for the reliable operation of power network.
该系统为继电保护运行的科学化管理提供了有效的技术手段，将更好地为电网的安全可靠运行服务。
Home gateway and relay connect through Internet in order to form internal home communication network. And this system interact information with outside through home gateway.
家庭网关和中继器之间通过以太网实现家庭内部网络的互联并通过家庭网关与外界进行信息的交互。
This protection information system with a network function has been put into operation, and the operation and management level of relay protection of cascade hydropower plants is improved.
该网络化的保护信息系统已在实际工作中发挥作用，提高了梯级水电站继电保护现场运行管理的水平。
Also, sufficient internal peripherals make the system be able to adjust secondary development for the relay protection network.
同时，丰富的片内资源使系统具备了面向继电保护网络化的二次开发能力。
The relay protection system is an important part of power network, and has a very close relation with the security and stabilization of the power network.
继电保护系统是电网的重要组成部分，与电网的安全稳定运行有着十分密切的关系。
Firstly, the L-PLC automatic meter reading system is introduced, and the network topology of this system is analyzed. Then we make a brief description of relay technology which applies to this system.
本文首先对低压电力线载波抄表系统进行了介绍，分析了其系统结构和网络拓扑结构，并对其应用的中继技术做了简要的说明。
Even in the mobile communication field, we can use the wireless relay system to replace the wired transmission network.
即使在移动通信领域，也可以用无线中继来替代其有线的传输网。
Second, we introduced wireless network between meter nodes and relay nodes, which let maintenancing system, examining trouble, extending system be easy.
其次，对于采集终端和集中器间的底层通信网络，采用短距离无线通信方式组网，系统维护、故障检修和扩充都更容易。
MIMO relay channels, which combines the multiple antenna system and the relay, can improve the spectral efficiency of relay network.
MIMO中继技术结合了多天线系统和中继技术的优点，进一步提高了中继系统的频谱效率。
MIMO relay channels, which combines the multiple antenna system and the relay, can improve the spectral efficiency of relay network.
MIMO中继技术结合了多天线系统和中继技术的优点，进一步提高了中继系统的频谱效率。
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