Performance Analysis of Ultra Wideband Receivers for High Data Rate Wireless Personal Area Network System
Bikramaditya Das (1), Susmita Das (1), ((1) National Institute of, Technology, Rourkela, India)

TL;DR
This paper compares the performance of Rake, MMSE, and Rake-MMSE receivers in ultra wideband high data rate systems, highlighting the advantages of Rake-MMSE in reducing error rates through detailed simulation analysis.
Contribution
It provides a comprehensive performance comparison and detailed analysis of Rake-MMSE receivers, including the effects of system parameters on error rates in UWB channels.
Findings
Rake-MMSE outperforms Rake and MMSE in error rate performance.
Performance improves with more Rake fingers at low SNR.
More equalizer taps are beneficial at high SNR.
Abstract
For high data rate ultra wideband communication system, performance comparison of Rake, MMSE and Rake-MMSE receivers is attempted in this paper. Further a detail study on Rake-MMSE time domain equalizers is carried out taking into account all the important parameters such as the effect of the number of Rake fingers and equalizer taps on the error rate performance. This receiver combats inter-symbol interference by taking advantages of both the Rake and equalizer structure. The bit error rate performances are investigated using MATLAB simulation on IEEE 802.15.3a defined UWB channel models. Simulation results show that the bit error rate probability of Rake-MMSE receiver is much better than Rake receiver and MMSE equalizer. Study on non-line of sight indoor channel models illustrates that bit error rate performance of Rake-MMSE (both LE and DFE) improves for CM3 model with smaller spread…
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