The study of differential 8-PSK trellis-coded modulation in indoor wireless communications through computer simulation.

Abstract

This thesis work studies the use of 4- and 8-state trellis-coded modulation with phase-shift keying and non-coherent, differential signaling for digital indoor wireless communications, at an operating frequency of 1.5 GHz and a transmission rate of 10 Mbits/s. Many other modulation schemes have been considered for the indoor wireless channel in other studies, and trellis-coded modulation has been considered for the satellite and mobile channel. This study presents new BER performance results, obtained through computer simulations, that suggest a performance gain with TCM relative to DQPSK, for certain ranges of SNR and rms delay spread. Equalization is also considered, and it is shown that it can provide considerable performance gain.