A multiple access source code (MASC) is a source code designed for the following network configuration: a pair of correlated information sequences {Xi}lm_, and {x}lm_, is drawn i.i.d. according to joint probability mass function (p.m.f.) p ( z , y); the encoder for each source operates without knowledge of the other source; the decoder jointly decodes the encoded bit streams from both sources. ...

Distributed source coding schemes are typically based on the use of channels codes as source codes. In this paper we propose a new paradigm, termed “distributed arithmetic coding”, which exploits the fact that arithmetic codes are good source as well as channel codes. In particular, we propose a distributed binary arithmetic coder for Slepian-Wolf coding with decoder side information, along wit...

A three terminal relay system with binary erasure channel (BEC) was considered, in which a source forwarded information to a destination with a relay’s ”assistance”. The nested LDGM (Low-density generator-matrix) -LDPC (lowdensity parity-check) was designed to realize Compress-andforward (CF) at the relay. LDGM coding compressed the received signals losslessly and LDPC realized the binning for ...

This paper addresses lossy transmission of a common source over a broadcast channel when there is correlated side information at the receivers, with emphasis on the quadratic Gaussian and binary Hamming cases. A digital scheme that combines ideas from the lossless version of the problem, i.e., Slepian-Wolf coding over broadcast channels, and dirty paper coding, is presented and analyzed. This s...

|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...

We propose an iterative receiver for a multi-carrier (MC) code division multiple access (CDMA) system in the uplink for users moving at vehicular speed. MC-CDMA is based on orthogonal frequency division multiplexing (OFDM), thus time-variant channel estimation can be performed for every subcarrier independently. The variation of a subcarrier over the duration of a data block is upper bounded by...