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Optimality and Approximate Optimality of Source-Channel Separation in Networks
[article]
2013
arXiv
pre-print
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It is shown that the separation approach is optimal in two general scenarios, and is approximately optimal in a third scenario. ...
We consider the source-channel separation architecture for lossy source coding in communication networks. ...
ACKNOWLEDGMENT The authors wish to thank Associate Editor Young-Han Kim and the anonymous reviewers for their constructive comments. ...
arXiv:1004.2648v3
fatcat:d2w5lctgqvhdvbgvakm3535roq
Optimality and approximate optimality of source-channel separation in networks
2010
2010 IEEE International Symposium on Information Theory
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It is shown that the separation approach is optimal in two general scenarios and is approximately optimal in a third scenario. ...
We consider the source-channel separation architecture for lossy source coding in communication networks. ...
ACKNOWLEDGMENT The authors wish to thank Associate Editor Young-Han Kim and the anonymous reviewers for their constructive comments. ...
doi:10.1109/isit.2010.5513468
dblp:conf/isit/TianCDS10
fatcat:c54gt534rbdqbcbkkcbwqdm3a4
Optimality and Approximate Optimality of Source-Channel Separation in Networks
2014
IEEE Transactions on Information Theory
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It is shown that the separation approach is optimal in two general scenarios and is approximately optimal in a third scenario. ...
We consider the source-channel separation architecture for lossy source coding in communication networks. ...
ACKNOWLEDGMENT The authors wish to thank Associate Editor Young-Han Kim and the anonymous reviewers for their constructive comments. ...
doi:10.1109/tit.2013.2291787
fatcat:sf6dezxvz5bttikapmqtxli73m
Optimized joint coding algorithm for audio streaming in short range wireless networks
2009
2009 Digest of Technical Papers International Conference on Consumer Electronics
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The major strength of the proposed algorithm is in its ability to match the source and channel coding parameters to given channel conditions, thus providing better quality of audio in home networking. ...
Streaming high quality audio/video (AV) from home media sources to TV sets and audio speakers over a wireless local area network (WLAN) is a challenging problem because of the fluctuating bandwidth caused ...
What we propose is an optimization algorithm in a source-channel domain. Since the early days of digital communications, channel coding and modulation have been separated from source coding. ...
doi:10.1109/icce.2009.5012352
fatcat:aqfvf2t2sfhprm3g7wjmjnwvbe
Optimization of Resource Allocation in Multihop HARQ Relay Networks with a Delay Constraint
2017
ITM Web of Conferences
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By minimizing the outage probability, optimization is carried out in this paper to find joint optimal power allocation (OPA) and relay placement (ORP) for multihop relay networks adopting Hybrid Automatic ...
The simulation results demonstrate that for different fixed number of nodes and fading models, there are preferred deployments depending on path loss exponent and power retransmission strategy. ...
Note that the solution of the joint optimization is a special case of a separate optimization resulting in the best performance. ...
doi:10.1051/itmconf/20171103005
fatcat:3mygtkwqz5cp3iv2osmw6wfafm
Correlated Sources Over Wireless Channels: Cooperative Source-Channel Coding
2004
IEEE Journal on Selected Areas in Communications
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One of the main challenges in this scenario is that the source/channel separation theorem, proved by Shannon for point-to-point links, does not hold anymore. ...
In both the deterministic and statistical cooperation scenarios, we develop analytical results that guide the optimization of the proposed schemes and validate the performance gains observed in simulations ...
This assumption leads, therefore, to the separate optimization of source and channel coding. ...
doi:10.1109/jsac.2004.830889
fatcat:spbmslxt5jbkfilw6y3z7sk7vq
Single-Channel Signal Separation and Deconvolution with Generative Adversarial Networks
2019
Proceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence
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2019 pre-print arXiv:1906.07552v1 fatcat:jwuub5cznnahxct65nnuygusly
In decomposition, both mixing filters and sources are optimized to minimize the reconstruction error of the mixture. ...
Single-channel signal separation and deconvolution aims to separate and deconvolve individual sources from a single-channel mixture. ...
Acknowledgements This research was supported by EPSRC grant EP/N014111/1 "Making Sense of Sounds" and a Research Scholarship from the China Scholarship Council (CSC) No. 201406150082. ...
doi:10.24963/ijcai.2019/381
dblp:conf/ijcai/KongXJWP19
fatcat:rn3hgdnjsrba3ocvfktomk2fru
2020 Index IEEE Open Journal of Signal Processing Vol. 1
2020
IEEE Open Journal of Signal Processing
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., +, OJSP 2020 146-158
Blind source separation
Subspace Detection and Blind Source Separation of Multivariate Signals by
Dynamical Component Analysis (DyCA). ...
Nassif, R., +, OJSP 2020 46-63 Subspace Detection and Blind Source Separation of Multivariate Signals by Dynamical Component Analysis (DyCA). ...
doi:10.1109/ojsp.2021.3053848
fatcat:23vjqfgxf5efjbgsc2mqni5m6m
Optimal Channel Pairing and Power Allocation for Multi-channel Multi-hop Relay Networks
[chapter]
2012
Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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We study the problem of channel pairing and power allocation in a multi-channel, multi-hop relay network to enhance the end-to-end data rate. ...
We further establish the equivalence between sorting SNRs and sorting channel gains in the jointly optimal solution, which allows simple implementation of optimal subcarrier pairing at the relays. ...
In this paper, we present a comprehensive solution for jointly optimizing SP and PA to maximize the source-destination data rate in a multi-channel (e.g., OFDM) multi-hop relay network. ...
doi:10.1007/978-3-642-29222-4_10
fatcat:ujzwjbrisja5npunfkqxejo6qm
A Survey on Beamforming Techniques for Wireless MIMO Relay Networks
2013
International Journal of Antennas and Propagation
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Different network topologies have been considered and categorized, pertaining the challenges of BF implementation in MIMO relay networks. ...
Thus, in a multitier network, the demand for high-speed and interference-free transmission and reception is inevitable. ...
Conflict of Interests The author declares that there is no conflict of interests regarding the publication of this paper. ...
doi:10.1155/2013/745018
fatcat:vclhrye455aedj3fsin43j3cqm
A Survey on Interference Networks: Interference Alignment and Neutralization
2012
Entropy
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We mainly focus on the "degrees of freedom" perspective and also discuss an approximate capacity characterization. ...
Specifically, we review interference alignment and ergodic interference alignment for multi-source single-hop networks and interference neutralization and ergodic interference neutralization for multi-source ...
Acknowledgments This work has been supported in part by the European ERC Starting Grant 259530-ComCom. ...
doi:10.3390/e14101842
fatcat:val3nlqkxveg3lhrzu74x3mc3e
Joint Subcarrier Matching and Power Allocation for OFDM Multihop System
[chapter]
2010
Communications and Networking
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In a relay network, a source node communicates with a destination node with the help of the relay node. ...
In Fig.4 , for the system with separate power constraints, it is noted that the capacity of optimal scheme is approximately equal to upper bound of capacity, which proves that the one-to-one subcarrier ...
doi:10.5772/10159
fatcat:466wrza34vhxljj7akgp7vgyri
Energy-efficient power allocation for non-regenerative OFDM relay links
2013
Science China Information Sciences
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We consider a two-hop non-regenerative (amplify-and-forward) relay link with one source, one destination and one relay, in which orthogonal frequency division multiplexing (OFDM) is used. ...
The power allocation (PA) to maximize the energy efficiency for the whole link is investigated under quality of service (Qos) requirement and separate power constraints. ...
PA of the OFDM relay networks in the frequency selective fading channel has also been widely discussed in recent years [5] [6] [7] [8] [9] . ...
doi:10.1007/s11432-012-4770-9
fatcat:3xyh5p3eonfxbmb4jjocrclsle
A Framework of Rate Control and Power Allocation in Multipath Lossy Wireless Networks
2016
Journal of Korea Multimedia Society
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There are two key challenges in wireless networks, lossy features of links and power assumption of network nodes. ...
In this paper, we are motivated to develop a cross-layer design of congestion control and power allocation, which takes into account lossy features of wireless links and transmission powers of network ...
Our focus in this paper is a joint scheme of congestion control and power allocation in wireless networks; therefore, the number of links, sources, and the number of multipath sources are often not large ...
doi:10.9717/kmms.2016.19.8.1404
fatcat:w4apq43b7ffcvjkvxkyroeggna
Performance Optimization of Interference-Limited Multihop Networks
2008
IEEE/ACM Transactions on Networking
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Optimal coordinated injection strategies are also investigated as functions of the number of information sources and their separations. ...
Information sources in a multihop wireless network can improve throughput and delay performance of data streams by implementing interference-aware packet injection mechanisms. ...
Joint Optimization of THR and HQD in Planar Networks As in the 1-D case, the network is assumed to have very slow dynamics in the vicinity of the source edge. ...
doi:10.1109/tnet.2007.905596
fatcat:wyjkldse2fdpzlxtr57ehtng6q
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