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Implementation of an Efficient Two-Step SOVA Turbo Decoder for Wireless Communication Systems
 

Summary: Implementation of an Efficient Two-Step SOVA Turbo
Decoder for Wireless Communication Systems
J. H. Han1
, A. T. Erdogan1,2
, T. Arslan1,2
1
University of Edinburgh, School of Engineering and Electronics
Edinburgh, EH9 3JL, Scotland, United Kingdom
2
Institute of System Level Integration, The ALBA campus
Livingston, EH54 7EG, Scotland, United Kingdom
j.han@ed.ac.uk, Ahmet.Erdogan@ee.ed.ac.uk, Tughrul.Arslan@ee.ed.ac.uk
Abstract--The authors present a soft-input soft-output (SISO)
turbo decoder based on the two-step soft-output Viterbi
algorithm (SOVA). The turbo decoder has been implemented
with the trace-back algorithm (TBA). It achieves power and
area reduction by employing an additional transition metric
unit (TMU) for the generation of reliability values, instead of
using a FIFO block for retrieving the previously stored
reliability values in the survivor memory unit (SMU).

  

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

 

Collections: Engineering