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A low-power reconfigurable digital pulse-shaping filter for an UTRA-TDD mobile terminal receiver

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3 Author(s)
Veljanovski, R. ; Centre of Telecommun. & Microelectron., Victoria Univ., Melbourne, Vic., Australia ; Singh, J. ; Faulkner, M.

A novel reconfigurable digital pulse-shaping filter has been proposed for a mobile terminal receiver that can drastically reduce power dissipation dependant on adjacent channel interference. It automatically scales the number of filter coefficients by monitoring the in-band and out-of-band powers. This new filter performance was evaluated in a simulation UTRA-TDD (UMTS terrestrial radio access - time division duplex) environment because of the large near far problem caused by adjacent channel interference from adjacent mobiles and base stations. The UTRA-TDD downlink mode was examined statistically and results show that this reconfigurable filter can save an average of 75% power dissipation when compared to a fixed filter length of 41. This will prolong talk and standby time in a mobile terminal.

Published in:

Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on  (Volume:2 )

Date of Conference:

4-7 Aug. 2002