不同导频序列下OFDM中梳型导频辅助信道估计的性能分析

2013 Tenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2013-07-26 DOI:10.1109/WOCN.2013.6616197

Vaibhav Mishra, P. Tripathi, Pragati Rana, H. Joshi

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引用次数: 2

摘要

正交频分复用技术(OFDM)是目前研究领域最为突出的一种无线接入技术，因其自身的优越性而具有传奇的重要性。信道估计是检验OFDM系统性能的关键特性之一。本文首先分析了瑞利衰落信道的特性。其次，梳型导频安排用于信道估计与不同的插值技术来检查信道响应。利用二进制随机序列、hadamard序列和复序列等导频序列对信道性能进行了测试。仿真结果表明，不同导频序列的使用会影响信道性能，从而导致较好的信道估计方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance analysis of comb type pilot aided channel estimation in OFDM with different pilot sequences

Orthogonal Frequency Division Multiplexing (OFDM) is the wireless access technique which has become eminent in the field of research and has gained legendary importance due to its advantages. Channel estimation is one of the crucial characteristics for scrutinizing the performance of the OFDM systems. In this paper, firstly a characteristic of a Rayleigh fading channel is analyzed. Next, comb type pilot arrangement for channel estimation is used with different interpolation techniques for inspecting the channel response. The channel performance is also examined, using various pilot sequences like binary random sequence, hadamard sequence and complex sequence. Simulation results demonstrate that the use of different pilot sequences affect the channel performance, thereby leading to noble channel estimation practices.

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2013 Tenth International Conference on Wireless and Optical Communications Networks (WOCN)

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