This paper analyses the performance of Hermite orthogonal pulses with Time-Hopping modulation techniques such as TH-PPM TH-BPSK and TH-PSM for Ultra wideband (UWB) communication using UWB S-V Channel-I. It compares the Bit Error Rate (BER) results of modulation techniques obtained with Gaussian pulse, with that of Hermite pulses and proves that Hermite pulses perform better than Gaussian derivatives for indoor UWB channel. Use of Hermite orthogonal pulses in time domain improves Bit Error Rate over indoor multipath environment, which in turn can increase the distance of communication.
This paper is concerned with error performance analysis of multidimensional orthogonal modulation technique using Hermite pulses over UWB S-V channel model. Multidimensional modulation technique uses N number of orthogonal shapes to transmit N information bits simultaneously in one bit interval. This improves the data transmission rate and hence is useful for multimedia application in indoor wireless communication. A simple correlator receiver performs reasonably well over multipath IEEE UWB channel model-I. It is observed that the performance of multidimensional modulation technique improves if we use alternate Hermite pulses for transmission of data. Further performance improvement is achieved by applying dual bit error correction code.
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