准静态多径环境下室内OFDM系统的空间分集方案

Vehicular Technology Conference. IEEE 55th Vehicular Technology Conference. VTC Spring 2002 (Cat. No.02CH37367) Pub Date : 2002-08-07 DOI:10.1109/VTC.2002.1002817

Takashi Usui

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引用次数: 0

摘要

提出了一种用于无线局域网或无线家庭网络等室内应用的正交频分复用(OFDM)系统的空间分集方案。在该方案中，根据传输信道频谱的倾角宽度选择天线。在典型的室内多径环境下，通过仿真对分集效果进行了评价。假设延迟扩展为30ns，最大多普勒频率为0.5 Hz。在本文中，当载波与噪声功率比(CNR)较高时，采用所提出的方案可将PER显著提高一个数量级(1/10)以上。

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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A space diversity scheme for in-house OFDM system in a quasi-static multipath environment

A space diversity scheme for an orthogonal frequency division multiplexing (OFDM) system designed for in-house application such as wireless local area network (WLAN) or wireless home network is proposed. In the proposed scheme, the antenna is selected in accordance with the dip width of the frequency spectrum of the transmission channel. The diversity effect is evaluated by simulation in a typical multipath environment in a house. The delay spread of 30 ns and the maximum Doppler frequency of 0.5 Hz are assumed. In this paper, the PER is considerably improved by more than one order (1/10) by using the proposed scheme when the carrier to noise power ratio (CNR) is high.

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Vehicular Technology Conference. IEEE 55th Vehicular Technology Conference. VTC Spring 2002 (Cat. No.02CH37367)

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