EXIT-Optimized Index Assignments for Turbo Decoders with Unreliable LLR Transfer

This letter considers a Turbo decoder for which the log likelihood ratios (LLRs) exchanged between constituent decoders are subject to independent bit errors. The resilience of the decoder against these errors can be improved - without increasing decoding complexity - by optimizing the index assignm...

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Vydáno v:	IEEE communications letters Ročník 17; číslo 5; s. 992 - 995
Hlavní autoři:	Geldmacher, J., Gotze, J.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.05.2013 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Applied sciences Approximation Approximation methods Bit error rate Coding, codes Decoders Decoding error resilience Errors Exact sciences and technology Exchanging EXIT chart fault tolerant decoder index assignment Indexes Information, signal and communications theory Iterative decoding Likelihood ratio Mathematical analysis Optimization Resilience Signal and communications theory soft errors Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Turbo codes unreliable LLRs Histogram Bit error rate EXIT chart Optimization Fault tolerance Algorithm complexity fault tolerant decoder Turbo codes soft errors Fault tolerant system unreliable LLRs Logarithmic function Transfer characteristic Likelihood ratio Turbo code Decoding index assignment Information transmission Resilience Error detection Numerical simulation error resilience Error correction Reliability Mutual information
ISSN:	1089-7798, 1558-2558
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