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In the successive refinement problem, a fixed-length sequence emitted from an information source is encoded into two codewords by two encoders in order to give two reconstructions of the sequence. One of two reconstructions is obtained by…

信息论 · 计算机科学 2018-12-26 Tetsunao Matsuta , Tomohiko Uyematsu

We consider the distributed source coding problem in which correlated data picked up by scattered sensors has to be encoded separately and transmitted to a common receiver, subject to a rate-distortion constraint. Although near-tooptimal…

信息论 · 计算机科学 2008-09-09 G. Maierbacher , J. Barros

In this work, we consider a distributed source coding problem with a joint distortion criterion depending on the sources and the reconstruction. This includes as a special case the problem of computing a function of the sources to within…

信息论 · 计算机科学 2008-08-21 Dinesh Krithivasan , S. Sandeep Pradhan

We consider the problem of lossy source coding with a mismatched distortion measure. That is, we investigate what distortion guarantees can be made with respect to distortion measure $\tilde{\rho}$, for a source code designed such that it…

信息论 · 计算机科学 2008-04-07 Urs Niesen , Devavrat Shah , Gregory Wornell

The spectral gap of a Markov chain can be bounded by the spectral gaps of constituent "restriction" chains and a "projection" chain, and the strength of such a bound is the content of various decomposition theorems. In this paper, we…

数据结构与算法 · 计算机科学 2019-10-14 Sarah Miracle , Amanda Pascoe Streib , Noah Streib

Transmission of a Gaussian source over a time-varying multiple-input multiple-output (MIMO) channel is studied under strict delay constraints. Availability of a correlated side information at the receiver is assumed, whose quality, i.e.,…

信息论 · 计算机科学 2015-05-27 Iñaki Estella Aguerri , Deniz Gündüz

We study finite-length bounds for source coding with side information for Markov sources and channel coding for channels with conditional Markovian additive noise. For this purpose, we propose two criteria for finite-length bounds. One is…

信息论 · 计算机科学 2017-01-10 Masahito Hayashi , Shun Watanabe

The goal of this paper is to describe conditions which guarantee a central limit theorem for random variables, which distributions are controled by hidden Markov chains. We proved that when a Markov chain is ergodic and random variables…

统计理论 · 数学 2018-10-11 Anna Czapkiewicz , Antoni Dawidowicz

In this paper, we consider a distributed remote source coding problem, where a sequence of observations of source vectors is available at the encoder. The problem is to specify the optimal rate for encoding the observations subject to a…

信息论 · 计算机科学 2014-06-05 Adel Zahedi , Jan Ostergaard , Soren Holdt Jensen , Patrick Naylor , Soren Bech

We consider the multi-user lossy source-coding problem for continuous alphabet sources. In a previous work, Ziv proposed a single-user universal coding scheme which uses uniform quantization with dither, followed by a lossless source…

信息论 · 计算机科学 2014-11-14 Avraham Reani , Neri Merhav

We approach index coding as a special case of rate-distortion with multiple receivers, each with some side information about the source. Specifically, using techniques developed for the rate-distortion problem, we provide two upper bounds…

信息论 · 计算机科学 2015-07-28 Sinem Unal , Aaron B. Wagner

A likelihood encoder is studied in the context of lossy source compression. The analysis of the likelihood encoder is based on the soft-covering lemma. It is demonstrated that the use of a likelihood encoder together with the soft-covering…

信息论 · 计算机科学 2016-04-07 Eva C. Song , Paul Cuff , H. Vincent Poor

We consider transmitting a source across a pair of independent, non-ergodic channels with random states (e.g., slow fading channels) so as to minimize the average distortion. The general problem is unsolved. Hence, we focus on comparing two…

信息论 · 计算机科学 2009-09-29 J. Nicholas Laneman , Emin Martinian , Gregory W. Wornell , John G. Apostolopoulos

Motivated by video coding applications, the problem of sequential coding of correlated sources with encoding and/or decoding frame-delays is studied. The fundamental tradeoffs between individual frame rates, individual frame distortions,…

信息论 · 计算机科学 2008-09-30 Nan Ma , Ye Wang , Prakash Ishwar

A general lossless joint source-channel coding (JSCC) scheme based on linear codes and random interleavers for multiple-access channels (MACs) is presented and then analyzed in this paper. By the information-spectrum approach and the…

信息论 · 计算机科学 2009-03-31 Shengtian Yang , Yan Chen , Peiliang Qiu

In this paper we study the nonasymptotic bounds of a special Joint Source-Channel Coding system with hierarchical source, where an observable source and an unobservable indirect source are required to be reconstructed. Namely, we focus on…

信息论 · 计算机科学 2026-03-17 Shuo Shao , Chao Qi , Jincheng Dai

In this monograph, we review recent advances in second-order asymptotics for lossy source coding, which provides approximations to the finite blocklength performance of optimal codes. The monograph is divided into three parts. In part I, we…

信息论 · 计算机科学 2024-10-25 Lin Zhou , Mehul Motani

This paper introduces an objective function that seeks to minimise the average total number of bits required to encode the joint state of all of the layers of a Markov source. This type of encoder may be applied to the problem of optimising…

神经与进化计算 · 计算机科学 2007-05-23 Stephen Luttrell

This paper addresses the problem of coding a continuous random source correlated with another source which is only available at the decoder. The proposed approach is based on the extension of the channel coding concept of syndrome from the…

信息论 · 计算机科学 2007-10-11 Lorenzo Cappellari

We consider the joint source-channel coding problem of sending a Gaussian source on a K-user Gaussian broadcast channel with bandwidth mismatch. A new outer bound to the achievable distortion region is derived using the technique of…

信息论 · 计算机科学 2010-11-22 Chao Tian , Suhas Diggavi , Shlomo Shamai