Paper Info
Title
Orthogonal Multiple Access With Correlated Sources: Achievable Region and Pragmatic Schemes
Abstract
In this paper, we consider orthogonal multiple access coding schemes, where correlated sources are encoded in a distributed fashion and transmitted through additive white Gaussian noise (AWGN) channels to an access point (AP). At the AP, component decoders, which are associated with the source encoders, iteratively exchange soft information by taking into account the source correlation. The first goal of this paper is to investigate the ultimate achievable performance limits in terms of a multi-dimensional feasible region in the space of channel parameters, deriving insights on the impact of the number of sources. The second goal is the design of pragmatic schemes, where the sources use “off-the-shelf” channel codes. In order to analyze the performance of given coding schemes, we propose an extrinsic information transfer-based approach, which allows to determine the corresponding multi-dimensional feasible regions. On the basis of the proposed analytical framework, the performance of pragmatic coded schemes, based on serially concatenated convolutional codes, is discussed.
Year
DOI
Venue
2014
10.1109/TCOMM.2014.2325039
IEEE Transactions on Communications
Keywords
Field
DocType
Convergence,Joints,Channel coding,Correlation,Decoding,Pragmatics
Concatenated error correction code,Convolutional code,Information transfer,Low-density parity-check code,Computer science,Serial concatenated convolutional codes,Communication channel,Electronic engineering,Feasible region,Additive white Gaussian noise
Journal
Volume
Issue
ISSN
62
7
0090-6778
Citations 
PageRank 
References 
3
0.40
25
Authors
5
Name
Order
Citations
PageRank
Andrea Abrardo137647.39
Gianluigi Ferrari21690139.36
Marco Martalò314422.01
Michele Franceschini473438.32
Riccardo Raheli566359.68