Title :
Random-coding bounds for threshold decoders: Error exponent and saddlepoint approximation
Author :
Martinez, Alfonso ; Fàbregas, Albert Guillén I
Author_Institution :
Dept. of Eng., Univ. of Cambridge, Cambridge, UK
fDate :
July 31 2011-Aug. 5 2011
Abstract :
This paper considers random-coding bounds to the decoding error probability with threshold decoders. A slightly improved version of the dependence-testing bound is derived. A loosening of this bound generates a family of Feinstein-like bounds, which improve on Feinstein´s original version. The error exponents of these bounds are determined and simple, yet accurate, saddlepoint approximations to the corresponding error probabilities are derived.
Keywords :
approximation theory; decoding; error statistics; random codes; Feinstein-like bound; decoding error probability; dependence-testing bound; error exponent; random coding bound; saddlepoint approximation; threshold decoder; Approximation methods; Decoding; Error probability; Measurement; Memoryless systems; Random variables; Transforms;
Conference_Titel :
Information Theory Proceedings (ISIT), 2011 IEEE International Symposium on
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4577-0596-0
Electronic_ISBN :
2157-8095
DOI :
10.1109/ISIT.2011.6034106
