NBI suppression UWB system based on novel non-linear chirp pulses
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Enhancing Data Rates of TH-UWB Systems Using M-ary OPPM-BPSM Modulation Scheme: A System Perspective
Wireless Personal Communications: An International Journal
Capacity Analysis of Orthogonal Pulse-Based TH-UWB Signals
Wireless Personal Communications: An International Journal
All-optical fiber interferometer-based methods for ultra-wideband signal generation
Journal of Electrical and Computer Engineering - Special issue on Ultra-Wideband Circuits, Systems, and Applications
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Pulse shapes previously proposed for ultrawideband communication systems are studied and compared to determine which provide the best performance. The performance measures considered are the bit error rate in multiple access interference environments and compliance with required spectral emission constraints. The Gaussian monocycles of higher orders and the prolate spheroidal function-based pulses are found to meet the spectral emission masks without frequency shifting. Frequency shifting and bandpass filtering must be used for the modified Hermite polynomial-based pulses to meet the spectral masks. The multiaccess performance average error rates of time-hopping ultrawideband systems using different pulse shapes are examined and compared using a newly published exact performance analysis method. The Gaussian monocycles are shown to achieve performance as good as the prolate spheroidal function-based pulses with the same effective bandwidths in numerical examples. The Gaussian monocycles outperform the modified Hermite polynomial-based pulses for the system models considered. Some tradeoffs of these pulses are also addressed in terms of the complexity of their implementations and the average bit error probabilities.