查询词典 multiplexing unit

With the knowledge of distribution of QR decomposition in spatial multiplexing, the design criterion for power loading is the overall BER averaged with respect to the channel distribution.

吾人设计的方法是利用空间多工下QR分解的机率分布，针对降低整体通道的平均错误率做功率分配，可在中高讯号杂讯比的情况下改善系统的效能表现。

A proportional fairness resource allocation algorithm, including both subcarrier assignment and power allocation, is proposed in multicast orthogonal frequency division multiplexing systems.

提出了一种多播正交频分复用系统中的比例公平资源分配算法，该算法包括：子载波分配算法和功率分配算法。

The core functions of the system were designed by top-down flow in VHDL, on the ground of defining the system frame in reason. The simulation and testing of the system including the multiplexing and demultiplexing functions were accomplished on 25 million-gate FPGA. The realizability of this project has been proved.

在合理定义的系统帧结构基础上，采用VHDL硬体描述语言和自顶向下的设计流程，完成了系统的核心逻辑设计，并用25万门FPGA进行了仿真和测试，证明该方案是可行的。

A method of peak-to-average power ratio reduction in the space division multiplexing MIMO MCCDMA system using Selected Mapping technique is presented in this paper.

同时针对传统的选择影射法需传输的边带资讯大的缺陷，提出将一种改进的SLM技术应用於系统中的方法。

To obtain good trade-offs between complexity and performance on peak-to-average power ratio reduction in orthogonal frequency division multiplexing using partial transmitting sequence schemes,a trellis structure based PTS factor search method is proposed.

为了得到部分传输序列降低OFDM信号峰均比方案中复杂度和性能之间的良好折衷，提出了一种基于格形结构的部分传输序列因子的搜索方法。

The streaming media service transmission simulation platform can simulate varied types of service source model, and perform traffic simulating, service aggregating and statistical multiplexing function; the data result is of some representability and reliability, which is mainly used for the theory research.

在特别定制的试验平台上进行了四优先级系统的网络性能仿真，验证了此方案可以最大限度的保障高优先级业务的传输，但却以牺牲低优先级业务的性能为代价，可以用于对QoS有特定要求的场合。

The method comprises the steps: S402: an inverse process multiplexing for a terminal to transmit channels; S404: CRC verifies a statistical module and judges whether CRC verified calculation in the inverse process is right and after relevant processing is taken according to the results of the judgment, the right circumstances in the CRC verification in the reverse process are added up; S406: the terminal outputs the link quality of the transmission channels according to the stastical results of the verified statistical module in the CRC; S408: RNC sends out request message for counting, and the terminal makes response to the counting in pre-set conditions and feedbacks the link quality of the transmission channels; S410: after receiving the counting response of the preset quantity, the RNC counts the link quality given feedback by the terminal and confirms whether to regulate power allocation of the signal channel loading MBMS according to the statistical results.

本发明提供了一种采用外码增强技术反馈链路质量的功率分配调整方法包括：S402，终端进行传输信道复用的逆过程；S404，CRC校验统计模块判断逆过程中的CRC校验计算是否正确，并且在根据判断结果进行相关处理后，统计逆过程中CRC校验的正确情况；S406，终端根据CRC校验统计模块的统计结果输出传输信道的链路质量；S408，RNC发送计数过程请求消息，并且终端在预定条件下响应计数，并反馈传输信道的链路质量；S410，RNC在接收到预定数量的计数响应后，统计终端反馈的链路质量，并根据统计结果确定是否调整承载MBMS的信道的功率分配。

With wide applications of SDH and Ethernet networks, it is of significance to study multiplexing techniques in their relevant access systems.

SDH网络、以太网的广泛应用，使得研究其相关接入的复用关键技术具有重要的意义。

As a parallel transmission technique with multi-carriers, Orthogonal Frequency Division Multiplexing is very suitable for high data rate transmission because it has the advantages of being robust to frequency selective fading, high spectrum efficiency and simple equalizer.

正交频分复用作为一种多载波并行传输技术，能够有效对抗多径信道的频率选择性衰落，同时具有较高的频谱利用率，接收端的均衡也很简单，非常适合于高速率数据传输。

The objective of cell relay is to develop a single high- speed network based on a switching and multiplexing scheme that works for all data types.

信元中继的目的是在所有数据类型均适用的交换和多路复用方案基础上，开发高速传输网络。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。