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On the performance of coherent and noncoherent UWB detection systems using a relay with multiple antennas

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3 Author(s)
Kiattisak Maichalernnukul ; Institute of Communications Technology, Faculty of Electrical Engineering, Leibniz University of Hannover, Appelstraße 9A, 30167 Hannover, Germany (e-mail: {kiattisak.maichalernnukul, thomas.kaiser, feng.zheng} ; Thomas Kaiser ; Feng Zheng

In this paper, we present detect-and-forward relaying approaches for a coherent ultra-wideband (UWB) detection (specifically selective-Rake reception) system and for a noncoherent UWB detection (specifically differential transmittedreference, DTR) system in order to achieve greater coverage in multipath fading channels. Multiple-antenna relay system are also proposed to further enhance the overall system performance. The corresponding bit error rate (BER) performance is evaluated theoretically and via simulations. The effect of some design factors on this performance is investigated. Analytical and simulation results verify the performance improvement of the proposed relay systems over the direct transmission systems.

Published in:

IEEE Transactions on Wireless Communications  (Volume:8 ,  Issue: 7 )