Implementation & Measurement of the Performance 802.11b WLAN System Using Radio Frequency

Abstract

This paper presents an empirical performance analysis of a wireless network of 802.11b technology. The system provides communications to fixed, portable and mobile users and offer substantial flexibility to both end-users and service providers. The basic purpose of this paper is to analyze the performance of a designed wireless network capable of sending high data rates by measurement of the power transmitted as a function of distance and calculation of the signal to noise ratio at the Rx input for different distances. In this paper we studied the behavior of transmitted signals in free space for 400m distance between two buildings, the experimental wireless data network is designed and tested for this purpose, the measurements shows the wireless coverage and throughput patterns for static and mobile users. We have discovered which channel parameters have the most significant impact on performance in actual local environment. The application used to perform all the experiments is typical of common applications that would use these protocols and network technologies.