Analysis of Bit Error Rate for Multi-user TDMA-based Communication System

Abstract

Intrinsic advantages of direct sequence spread spectrum (DSSS) are interference free, multiple access, and low probability of intercept (LPI), as well as the ease with which it may be deployed, make it a suitable transmission system for both defence and commercial applications. DSSS is a standard mechanism used by the majority of current remote control devices to transfer command and control data. Only DSSS technology might not be sufficient to convey numerous accesses as soon as the multiple users of aircraft to control cultivate. To attain an efficient multiple access, a hybrid technique should be used in combination of DSSS with time division multiple accesses (TDMA) as an alternative multiple access strategy. The Bit Error Rate (BER) performance for unmanned aerial vehicles (UAV) communication has been analysed over adaptive white Gaussian noise (AWGN) channel and Rayleigh faded channel by varying number of UAVs.