Selective channelization on an SDR platform for LTE-a carrier aggregation

The total transmission bandwidth and component carrier aggregation proposed by LTE-Advanced, sets a new challenge to the design of terminals. This article presents a way to assure terminals cope with the large bandwidth in an efficient manner. Various filtering methods are explored showing that an S...

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Published in2012 19th IEEE International Conference on Electronics, Circuits, and Systems (ICECS 2012) pp. 316 - 319
Main Authors Diaz, I., Torrea-Duran, R., Pollin, S., Van der Perre, L., Owall, V.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2012
Subjects
ADRES
Bandwidth
Baseband
Channelization
Clocks
Component Carrier Aggregation
Computer architecture
Electrical Engineering, Electronic Engineering, Information Engineering
Elektroteknik och elektronik
Engineering and Technology
Fil- tering
Filtering
Finite impulse response filter
LTE-A
SDR
Software
Software Defined Radio
Teknik
VLIW
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Summary:The total transmission bandwidth and component carrier aggregation proposed by LTE-Advanced, sets a new challenge to the design of terminals. This article presents a way to assure terminals cope with the large bandwidth in an efficient manner. Various filtering methods are explored showing that an SDR architecture, such as ADRES (Architecture for Dynamically Reconfigurable Embedded Systems), is suitable for dynamic adaptation of filtering methods as function of the aggregation scheme and the individual bandwidth assigned to each terminal. This method is able to reduce the processing load by 70% for LTE-A with legacy support and possibly higher reduction when LTE legacy is not supported. Simulations conclude that the performance loss derived from the proposed method is marginal with no negative repercussion on the posterior baseband stages.
ISBN:1467312614
9781467312615
DOI:10.1109/ICECS.2012.6463738