Research On Wireless Ultra-Wideband Channel

The Ultra-Wideband wireless communication technology is a new and high-speed wirelesstransmission technology. UWB will be the next generation of short-range wireless communicationand the solutions of wireless personal area network because of high-speed and resist interference.The UWB channel model including the Poisson model and its amendments, kmodel andits amendments, S-V model, Two-cluster model, IEEE802.15.3a model and IEEE802.15.4a modeland so on. The two IEEE standard models based on S-V channel model are used for indoor/outdoorand LOS/NLOS environment. IEEE802.15.3a channel model and IEEE802.15.4a channel model arethe key study in this thesis. Detailed mathematical model and principle about IEEE802.15.3achannel model and IEEE802.15.4a channel model are introduced. Based on the theoreticalknowledge,4channel environment of IEEE802.15.3a channel model and the other different channelenvironment of IEEE802.15.4a channel model are simulated by MatLab. There are4parameters inthe simulation that they are the channel impulse response, the excess delay, RMS delay and PDP.Then according to the simulation diagram and data from analysis, the characteristics of the channelmodels are obtained.Optimization proposed by IEEE802.15.4a channel model is mainly about the arrival rate ofcluster distribution. On the basis of optimize theory and data from simulation, the advantages anddisadvantages of the optimized channel model are obtained.Baesd on the study about UWB channel model, the TR receiver which is designed for theIEEE802.15.3a CM1channel model is simulated by MatLab, the conclusion is drawn that the pronsand cons of different TR receiver.