Name
Abstract | ||
|---|---|---|
In this paper, we consider multiple access schemes with correlated sources, where a priori information, in terms of source correlation, is available at the access point (AP). In particular, we assume that each source uses a proper low-density parity-check (LDPC) code to transmit, through an additive white Gaussian noise (AWGN) channel, its information sequence to the AP. At the AP, the information sequences are recovered by an iterative decoder, with component decoders associated with the sources, which exploit the available a priori information. In order to analyze the behaviour of the considered multiple access coded system, we propose a density evolution-based approach, which allows to determine a signal-to-noise ratio (SNR) transfer chart and compute the system multi-dimensional SNR feasible region. The proposed technique, besides characterizing the performance of LDPC-coded multiple access scheme, is expedient to design optimized LDPC codes for this application. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/ITA.2010.5454106 | ITA |
Keywords | Field | DocType |
signal-to-noise ratio transfer chart,joint channel decoding (jcd),iterative decoder,low density parity check code,ldpc codes,awgn channels,additive white gaussian noise channel,correlated sources,multi-access systems,density evolution,multidimensional snr feasible region,optimized ldpc codes,density evolution-based analysis,access point,wireless sensor networks,parity check codes,multiple access schemes,decoding,multiple access coded system,ldpc-coded multiple access scheme,low density parity check,awgn,systematics,ldpc code,correlation,signal to noise ratio,additive white gaussian noise,design optimization,wireless sensor network | Mathematical optimization,Low-density parity-check code,Computer science,A priori and a posteriori,Signal-to-noise ratio,Algorithm,Communication channel,Theoretical computer science,Feasible region,Decoding methods,Additive white Gaussian noise,Wireless sensor network | Conference |
ISBN | Citations | PageRank |
978-1-4244-7014-3 | 0 | 0.34 |
References | Authors | |
21 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Marco Martalò | 1 | 144 | 22.01 |
| Gianluigi Ferrari | 2 | 1690 | 139.36 |
| Andrea Abrardo | 3 | 376 | 47.39 |
| Michele Franceschini | 4 | 734 | 38.32 |
| Riccardo Raheli | 5 | 663 | 59.68 |