IEEE802.11a无线局域网中时序同步的低复杂度相关系统

Taehyeun Ha, Seongjoo Lee, J. Jim
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引用次数: 8

摘要

提出了一种用于IEEE 802.11a无线局域网系统中帧定时同步的低复杂度相关系统。所提出的相关系统通过将接收到的OFDM前导与由{0,/spl plusmn/2/sup 0/, /spl plusmn/2/sup 1/,…2/sup i/},其中i是一个整数。2/sup i/值系数使相关系统中的乘法函数简化为单个i位移位器。因此,我们可以用单位移器来设计相关系统,而不是用乘法来设计。在本文中,我们证明了复杂性可以降低90%,同时仍然保持与传统系统相当的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Low-complexity correlation system for timing synchronization in IEEE802.11a wireless LANs
This paper suggests a low-complexity correlation system for frame timing synchronization in IEEE 802.11a wireless LAN systems. The proposed correlation system has been implemented by correlating the received OFDM preamble with quantized coefficients composed of {0, /spl plusmn/2/sup 0/, /spl plusmn/2/sup 1/,... 2/sup i/}, where i is an integer number. The 2/sup i/-valued coefficients enable the multiplying function in the correlation system to be simplified to single i-bit shifters. So we can design the correlation system using single-shifters instead of multiplying functions. In this paper we show that the complexity can be reduced by 90% while still maintaining a performance comparable to that of the conventional system.
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