Development of a local area microwave network

Abstract

An introduction to the background and approach taken in the project is given in chapter 1. This is followed by a detailed description of wireless network hardware in chapter 2. The wireless transceiver uses DPSK modulation on Manchester Encoded data. The transmission from users to a control station is in the form of burst frames of data in its original Ethernet form. Carrier frequencies of 1.88 GHz and 1.95 GHz are used to carry data from users to the control and in the reverse path in a full duplex operation manner. Multiple access protocol used is similar to CSMA/CD. The transmitter has a maximum EIRP of around 0 dBm. The receiver consists of a single stage down conversion to 70 MHz with incoherent DPSK demodulation at 70 MHz. The noise figure is 6.5 dB and the total power gain is 76 dB. The equivalent noise bandwidth is 71 MHz.