基于低精度量化的无线传输理论最新研究进展

发布时间：2018-03-31 14:59

  本文选题：低精度量化　切入点：信道容量　出处：《电信科学》2017年06期

【摘要】：5G移动通信技术相比于目前的4G移动通信技术,其峰值速率将增长数十倍,达到吉比特。未来移动通信系统面临着硬件成本高昂、系统功率消耗过高等问题,成为高传输速率通信的主要瓶颈之一。为了解决上述问题,学术界展开了对低功耗高效传输技术的研究,其中能够有效解决上述问题的途径之一就是低精度(如1~3 bit)ADC的接收机。通过对高斯信道下低精度量化的信道容量进行分析,发现相较于传统高精度ADC接收机,2~3 bit的ADC所带来的信道容量损失在可接受的范围内。面向低精度量化在无线通信系统中的应用,综合论述了低精度量化对信道容量的影响以及低精度量化下接收机的设计,解决了低精度量化下诸如同步、增益控制、信道估计等问题,为低精度量化通信系统的具体实现提供指导。
[Abstract]:Compared with the current 4G mobile communication technology, the peak rate of 5G mobile communication technology will increase tens of times to Gigabit.In the future, mobile communication systems will face the problems of high hardware cost and high power consumption, which will become one of the main bottlenecks of high transmission rate communication.In order to solve the above problems, the academic circles have carried out the research on the low-power and high-efficiency transmission technology, and one of the ways to solve these problems effectively is the receiver with low precision (such as 1 / 3 bit)ADC).By analyzing the channel capacity of low precision quantization in Gao Si channel, it is found that the channel capacity loss caused by the ADC of 2 ~ 3 bit is within an acceptable range compared with the traditional high-precision ADC receiver.For the application of low precision quantization in wireless communication system, the influence of low precision quantization on channel capacity and the design of receiver under low precision quantization are discussed synthetically, which solves the problem of synchronization and gain control under low precision quantization.Channel estimation provides guidance for the implementation of low-precision quantized communication systems.
【作者单位】： 东南大学移动通信国家重点实验室;台湾中山大学通讯工程研究所;清华大学自动化系;
【基金】：国家自然科学基金资助项目(No.61625106,No.61531011)~~
【分类号】：TN929.5
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本文编号：1691230