منابع مشابه
Iterative Decoding Algorithms for Turbo Product Codes
In this paper we introduce the iterative decoding principle, “the turbo principle”, for the bidimensional Turbo Product Codes (TPC’s). The constituent codes used for encoding on rows and columns are two concatenated (7,4) Hamming block codes. Several Soft Input Soft Output (SISO) algorithms can be used for the iterative decoding process. At each iteration, the two decoders decode all rows, then...
متن کاملSoft-Output Decoding Algorithms in Iterative Decoding of Turbo Codes
In this article, we present two versions of a simplified maximum a posteriori decoding algorithm. The algorithms work in a sliding window form, like the Viterbi algorithm, and can thus be used to decode continuously transmitted sequences obtained by parallel concatenated codes, without requiring code trellis termination. A heuristic explanation is also given of how to embed the maximum a poster...
متن کاملDynamic Modeling and Analysis of Iterative Decoding for Turbo Codes
Turbo codes and low density parity check codes are two classes of most powerful error correcting codes. What makes these codes so powerful is the use of the so-called iterative decoding or turbo decoding. Roughly speaking, an iterative decoding process is an iterative learning process for a complex system where the objective is to provide a good suboptimal estimate of a desired signal. Iterativ...
متن کاملIterative reliability-based decoding of turbo-like codes
In this paper, the use of a reliabilitybased decoding algorithm for some concatenated codes with an interleaver, known as turbo-like codes, is examined to address and overcome the suboptimality of iterative decoding. Simulation results show that the suboptimality of iterative decoding for moderate length codes can be at least partially compensated by this combined approach. Some insights about ...
متن کاملNoncoherent iterative (turbo) decoding
Recently, noncoherent sequence detection schemes for coded linear and continuous phase modulations have been proposed, which deliver hard decisions by means of a Viterbi algorithm. The current trend in digital transmission systems toward iterative decoding algorithms motivates an extension of these schemes. In this paper, we propose two noncoherent soft-output decoding algorithms. The first sol...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Advanced College of Engineering and Management
سال: 2018
ISSN: 2392-4853
DOI: 10.3126/jacem.v3i0.18810