Optimum Transmission Ranges in DS/CDMA Mobile Ad Hoc Networks

This paper analyzes the joint effect of PN code synchronization and BER (bit error rate) on transmission ranges for DS/CDMA (direct spread code division multiple accesses) MANET (mobile ad-hoc networks). We obtain the optimum transmission ranges to maximize throughput for a DS/CDMA MANET by taking into account the PN code acquisition. Our aim is to optimally set the number of interferers I and the PN code acquisition threshold V_Th. The results obtained show that the probability of PN synchronization decreases the expected forward progress per slot compared with previous results and that the optimum probability of each terminal transmitting a packet is different from previous results. The results obtained can be used as heuristics to set the parameter in MANET.