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Pilot-channel assisted modulation for pulse-based ultra-wideband wireless communications

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2 Author(s)
Xiaoli Chu ; Dept. of Electr. & Electron. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon, China ; R. D. Murch

We propose a pilot-channel assisted modulation (PCAM) for pulse-based ultra-wideband systems that require accurate channel estimation for RAKE combining. The pilot channel is constructed with pulses that are orthogonal to the data-bearing pulses and each pilot pulse is transmitted together with a data pulse. PCAM parameters are designed to optimize the channel estimation and data detection performance jointly. Simulation results show that PCAM is able to provide desirable performance under channel time-variations and multi-user interference, without sacrificing the data rate.

Published in:

IEEE International Conference on Communications, 2005. ICC 2005. 2005  (Volume:5 )

Date of Conference:

16-20 May 2005