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AN EFFICIENT REFORMULATION BASED VLSI ARCHITECTURE FOR ADAPTIVE VITERBI DECODING IN WIRELESS APPLICATIONS
 

Summary: AN EFFICIENT REFORMULATION BASED VLSI ARCHITECTURE FOR ADAPTIVE
VITERBI DECODING IN WIRELESS APPLICATIONS
Yao Gang,Tughrul Arslan,Ahmet Erdogan
School of Electrical Engineering, Edinburgh University
Edinburgh UK, EH93JL
Email: y.gang@ed.ac.uk
ABSTRACT
New trends in wireless communication systems has dictated
the need for dynamical adaptation of communication sys-
tems in order to suit enviromental requirements. The au-
thors present a reformulation based VLSI architecture for
threhold selection for Adaptive Viterbi Decoding in wireless
applications. Through reformulationof the Adaptive Viterbi
Algorithm, the compare operation for threshold selection in
Add Compare Select (ACS) unit is simplified from vari-
able based to constant based and the width of path metric
is reduced. The reformulated architecture results in a sig-
nificant reduction of hardware complexity in both standard
cell and Look Up Table (LUT) technologies. The paper de-
scribes the reformulation technique, its VLSI Architecture

  

Source: Arslan, Tughrul - School of Engineering and Electronics, University of Edinburgh

 

Collections: Engineering