异步干扰下通信的分组设计

C. Budianu, Lang Tong
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引用次数: 1

摘要

在许多无线多址通信系统中都存在异步干扰。本文研究了当数据包受到异步干扰时,如何在数据包中放置训练符号的问题。考虑的性能指标是使用基于训练的信道估计使用相干接收的系统可实现的数据传输速率。得到了可达速率的上下界。通过优化放置,可实现的速率可以翻倍。此外,如果使用提供最佳信道估计性能的位置,则数据速率损失可以忽略不计;因此,位置对数据速率的影响主要是通过信道估计的效率来实现的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Packet design for communication under asynchronous interference
The asynchronous interference arises in many wireless multiple access communication systems. This paper considers the problem of placing the training symbols within the data packets when these packets are subject to asynchronous interference. The performance measure considered is the achievable data transmission rate for a system that uses coherent reception using a training-based channel estimate. An upper and a lower bound for the achievable rate are obtained. By optimizing the placement the achievable rate can be doubled. Also, if the placement that provides optimum channel estimation performance is used, the data rate loss is negligible; thus the effect of the placement on the data rate is mainly through the efficiency of channel estimation.
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