Signal Processing - Signal processing in UWB communications
An improved conditional maximum-likelihood detector for noncoherent UWB communication
IEEE Communications Letters
Performance analysis of the IEEE 802.15.4a UWB system
IEEE Transactions on Communications
Performance of FM-DCSK UWB with timing error
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Non-coherent receiver with fractional sampling for impulsive UWB systems
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Wireless Personal Communications: An International Journal
BodyNets '13 Proceedings of the 8th International Conference on Body Area Networks
Hi-index | 35.68 |
We investigate timing tolerances of ultra wideband (UWB) impulse radios. We quantify the bit-error-rate (BER) sensitivity to epoch timing offset under different operating conditions, including frequency flat fading channels, dense multipath fading channels, multiple access with time hopping, and various receiver types including sliding correlators and RAKE combiners. Our systematic approach to BER derivations under mistiming can be extended to a wide range of channel fading types. Through analyses and simulations, we illustrate that the reception quality of a UWB impulse radio is highly sensitive to both timing acquisition and tracking errors. In particular, time-hopping-based multiple-access systems exhibit little tolerance to acquisition errors, and the energy capture capability of a RAKE combiner can be severely compromised by mistiming.