Some Results and some Problems Related to Concatenated Codes
نویسنده
چکیده
Some results of the cooperation between IPPI and the coding group in Denmark are reviewed. From this starting point several new developments and open problems in concatenated codes are discussed.
منابع مشابه
Unveiling turbo codes: some results on parallel concatenated coding schemes
A parallel concatenated coding scheme consists of two simple constituent systematic encoders linked by an interleaver. The input bits to the rst encoder are scrambled by the interleaver before entering the second encoder. The codeword of the parallel concatenated code consists of the input bits to the rst encoder followed by the parity check bits of both encoders. This construction can be gener...
متن کاملUnveiling Turbo Codes: Some Results on Parallel Concatenated Coding Schemes - Information Theory, IEEE Transactions on
AbstructA parallel concatenated coding scheme consists of two simple constituent systematic encoders linked by an interleaver. The input bits to the first encoder are scrambled by the interleaver before entering the second encoder. The codeword of the parallel concatenated code consists of the input bits to the first encoder followed by the parity check bits of both encoders. This construction ...
متن کاملCoding and Iterative Decoding of Concentrated Multi-level Codes for the Rayleigh Fading Channel
In this thesis we present the concept of concatenated multilevel codes. These codes are a combination of generalized concatenated codes with multilevel coding. The structure of these codes is simple and relies on the concatenation of two or more codes of shorter length. These codes can be designed to have large diversity which makes them attractive for use in fading channels. We also present an...
متن کاملConstruction and analysis of polar and concatenated polar codes: practical approach
We consider two problems related to polar codes. First is the problem of polar codes construction and analysis of their performance without Monte-Carlo method. The formulas proposed are the same as those in [Mori-Tanaka], yet we believe that our approach is original and has clear advantages. The resulting computational procedure is presented in a fast algorithm form which can be easily implemen...
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 کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004