Pragmatic continuous phase modulations for wireless robotics systems

In this paper, wireless transmission systems using pragmatic continuous phase modulation with frequency division multiple access to uplink transmission are considered. The performance of physical layer of wireless robotics, which consists of mesh sensor networks, is investigated. The wireless robotics local networks are characterized by numerous power limited sensors with small antennas which are able to direct connection with an external remote controller. In order to take maximum advantage of the available frequency band, distances between carriers of individual system transmitters are small which causes a drop in the transmission quality due to inter-channel interference (ICI). To minimise its impact on the bit error rate (BER) the efficient ICI elimination method was employed in the receiver. BER results obtained for the tested systems in computer simulation are presented.