Coverage strategy in TETRA quasi-synchronous systems

The effect of the spacing distance between the base stations on the BER performance of a quasi-synchronous trans-European trunked radio (TETRA) system is investigated. Two models are presented, the first assumes two base stations are used to cover the service area while the second model considers a system where the service area is covered by seven base stations. Both models are implemented by computer simulation. Simulation results suggest that wide area coverage can be achieved by dividing the service area into a number of zones (cells), with each zone being a quasi-synchronous area served by several base stations