Iterative Decoding of Concatenated Convolutional Codes: Implementation Issues
نویسندگان
چکیده
منابع مشابه
Iterative decoding of serially concatenated convolutional codes - Electronics Letters
where p is an empirically chosen constant (0 < 1-1 < 2). The modification in the MBTS algorithm is in the last step where the quantisation levels are calculated. In the BTS algorithm the quantisation levels are selected at cluster centres. In MBTS, they are displaced from the cluster centres to facilitate the representation of more colours within a cluster with closer quantisation colours (eqn....
متن کاملIterative Decoding Algorithms for RS-Convolutional Concatenated Codes
This paper presents an iterative decoding algorithm for concatenated codes consisting of a ReedSolomon and a convolutional code, focusing on the code of the DVB-S standard. Existing solutions for the different decoding stages and their interfaces are discussed and their performance is compared. Besides, a new procedure is proposed to define the feedback signal from the output of the Reed-Solomo...
متن کاملIterative Decoding Trajectories of Parallel Concatenated Codes
Mutual information transfer characteristics for soft in/soft out decoders are proposed as a tool to better understand the convergence behavior of iterative decoding schemes. The exchange of extrinsic information is visualized as a decoding trajectory in the Extrinsic Information Transfer Chart. This allows the prediction of turbo cliff position and bit error rate after an arbitrary number of it...
متن کاملIterative Decoding of Concatenated Codes: A Tutorial
The turbo decoding algorithm of a decade ago constituted a milestone in error-correction coding for digital communications, and has inspired extensions to generalized receiver topologies, including turbo equalization, turbo synchronization, and turbo CDMA, among others. Despite an accrued understanding of iterative decoding over the years, the “turbo principle” remains elusive to master analyti...
متن کاملHybrid Concatenated Codes and Iterative Decoding
A hybrid concatenated code with two interleavers is the parallel concatenation of an encoder, which accepts the permuted version of the information sequence as its input, with a serially concatenated code, which accepts the unpermuted information sequence. The serially concatenated code consists of an outer encoder, an interleaver, and an inner encoder. An upper bound to the average maximum-lik...
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: Proceedings of the IEEE
سال: 2007
ISSN: 0018-9219
DOI: 10.1109/jproc.2007.895202