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Time-hopping code characterization for multiuser interference mitigation in ultra wide band impulse radio

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3 Author(s)
Deleuze, A.-L. ; THALES Land & Joint Syst., Colombes, France ; Le Martret, C.J. ; Ciblat, P.

We consider an ultra wide band impulse radio multiple access scheme based on time-hopping code under a realistic multipath channel model. As a novelty, we provide a closed-form expression for the variance of the multiuser interference at the output of the rake receiver of the user of interest. That enables us to characterize the optimal time-hopping codes minimizing the multiuser interference variance. Finally we observe through simulations that minimizing the multiuser interference variance translates into better performance by significantly decreasing the error probability.

Published in:

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on  (Volume:1 )

Date of Conference:

7-10 Nov. 2004

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