The implementation of smart antenna diversity for wireless local area network

• Main Authors: Han-Guo Yeh, 葉漢國
• Other Authors: 李揚漢
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/93310523369513572004

碩士 === 淡江大學 === 電機工程學系碩士班 === 94 === In recent years, the Wireless Local Area Network (WLAN) product is quick development, cost down and high speed, the technique is maturity and security also more safe, but the WLAN has a defect which the transmission quality is not stable. A recent trend, the wireless commutation is focus on transmission capacity and transmission quality with multiple antennas at transmitter and Receiver, the system which using multi-antenna will be improve the transmission quality and transmission capacity, In order to improver the multi-antenna diversity gain, in our paper, we propose a algorithm which is a MISO (multi input single output) system, and we using Microsoft visual C++ combine DDK(Driver Development Kit) to make a driver. The main topic of this thesis is to increase cover area of new algorithm, this thesis mainly consists of three parts. The first part introduces the antenna diversity system; second part introduces the characteristics of wireless communication environments. In the third part, we present a new algorithm to find the maxima improver ratio and the maxima cover area.