Summary: | 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.
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