A Universal Scheme for Wyner–Ziv Coding of Discrete Sources
نویسندگان
چکیده
منابع مشابه
A universal scheme for Wyner-Ziv coding of discrete sources
We consider the Wyner–Ziv (WZ) problem of lossy compression where the decompressor observes a noisy version of the source, whose statistics are unknown. A new family of WZ coding algorithms is proposed and their universal optimality is proven. Compression consists of sliding-window processing followed by Lempel–Ziv (LZ) compression, while the decompressor is based on a modification of the discr...
متن کاملA Suitable Coding Scheme for Broadband Power-line Communication
This paper introduces three coding strategies for using the Luby Transform (LT) code in a relay aided power-line communication scheme. In the first method, the relay decodes the received packets and re-encodes them for transmission towards the destination. In the second method, the relay only forwardes a random linear combination of its received packets towards the destination, while in the thi...
متن کاملUniversal coding of nonstationary sources
In this correspondence we investigate the performance of the Lempel–Ziv incremental parsing scheme on nonstationary sources. We show that it achieves the best rate achievable by a finite-state block coder for the nonstationary source. We also show a similar result for a lossy coding scheme given by Yang and Kieffer which uses a Lempel–Ziv scheme to perform lossy coding.
متن کاملUniversal Coding for Correlated Sources with Memory
|Universal coding problem for the system of Slepian and Wolf (the SW-system) has rst been investigated by Csisz ar and Korner. They considered the correlated memoryless sources, and established a universally attainable error exponent as a function of rate pair (R1;R2) that is positive whenever (R1; R2) is an inner point of the admissible rate region of the SW-system, which is speci ed dependin...
متن کاملUniversal Source Coding of Finite Alphabet Sources
The application of Shannon’s rate distortion theory to real data compression practice has been limited by a lack of effective distortion measures for most real users and incomplete statistical knowledge of real sources. Universal source coding techniques attempt to overcome the latter limitation by developing codes that are effective (in the sense of approaching the theoretical rate distortion ...
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: IEEE Transactions on Information Theory
سال: 2010
ISSN: 0018-9448,1557-9654
DOI: 10.1109/tit.2010.2040889