2015
Bravo-Santos, Ángel M; Djuric, Petar M
Detectors for Cooperative Mesh Networks with Decode-and-Forward Relays Artículo de revista
En: IEEE Transactions on Signal Processing, vol. 63, no 1, pp. 5–17, 2015, ISSN: 1053-587X.
Resumen | Enlaces | BibTeX | Etiquetas: Cooperative systems, Detectors, Mesh networks, Modulation, Relays, spread spectrum communication, Wireless communication
@article{Bravo-Santos2014b,
title = {Detectors for Cooperative Mesh Networks with Decode-and-Forward Relays},
author = {\'{A}ngel M Bravo-Santos and Petar M Djuric},
url = {http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6928514},
doi = {10.1109/TSP.2014.2364016},
issn = {1053-587X},
year = {2015},
date = {2015-01-01},
journal = {IEEE Transactions on Signal Processing},
volume = {63},
number = {1},
pages = {5--17},
publisher = {IEEE},
abstract = {We consider mesh networks composed of groups of relaying nodes which operate in decode-andforward mode. Each node from a group relays information to all the nodes in the next group. We study these networks in two setups, one where the nodes have complete state information about the channels through which they receive the signals, and another when they only have the statistics of the channels. We derive recursive expressions for the probabilities of errors of the nodes and present several implementations of detectors used in these networks. We compare the mesh networks with multi-hop networks formed by a set of parallel sections of multiple relaying nodes. We demonstrate with numerous simulations that there are significant improvements in performance of mesh over multi-hop networks in various scenarios.},
keywords = {Cooperative systems, Detectors, Mesh networks, Modulation, Relays, spread spectrum communication, Wireless communication},
pubstate = {published},
tppubtype = {article}
}
Bravo-Santos, Ángel M; Djuric, Petar M
Detectors for Cooperative Mesh Networks with Decode-and-Forward Relays Artículo de revista
En: IEEE Transactions on Signal Processing, vol. 63, no 1, pp. 5–17, 2015, ISSN: 1053-587X.
Resumen | Enlaces | BibTeX | Etiquetas: Cooperative systems, Detectors, Journal, Mesh networks, Modulation, Relays, spread spectrum communication, Wireless communication
@article{Bravo-Santos2014bb,
title = {Detectors for Cooperative Mesh Networks with Decode-and-Forward Relays},
author = {\'{A}ngel M Bravo-Santos and Petar M Djuric},
url = {http://ieeexplore.ieee.org/articleDetails.jsp?arnumber=6928514},
doi = {10.1109/TSP.2014.2364016},
issn = {1053-587X},
year = {2015},
date = {2015-01-01},
journal = {IEEE Transactions on Signal Processing},
volume = {63},
number = {1},
pages = {5--17},
publisher = {IEEE},
abstract = {We consider mesh networks composed of groups of relaying nodes which operate in decode-andforward mode. Each node from a group relays information to all the nodes in the next group. We study these networks in two setups, one where the nodes have complete state information about the channels through which they receive the signals, and another when they only have the statistics of the channels. We derive recursive expressions for the probabilities of errors of the nodes and present several implementations of detectors used in these networks. We compare the mesh networks with multi-hop networks formed by a set of parallel sections of multiple relaying nodes. We demonstrate with numerous simulations that there are significant improvements in performance of mesh over multi-hop networks in various scenarios.},
keywords = {Cooperative systems, Detectors, Journal, Mesh networks, Modulation, Relays, spread spectrum communication, Wireless communication},
pubstate = {published},
tppubtype = {article}
}
2011
Koch, Tobias; Lapidoth, Amos
Asymmetric Quantizers are Better at Low SNR Proceedings Article
En: 2011 IEEE International Symposium on Information Theory Proceedings, pp. 2592–2596, IEEE, St. Petersburg, 2011, ISSN: 2157-8095.
Resumen | Enlaces | BibTeX | Etiquetas: asymmetric one-bit quantizer, asymmetric signal constellations, channel capacity, Channel Coding, Constellation diagram, Decoding, discrete-time average-power-limited Gaussian chann, Gaussian channels, quantization, Signal to noise ratio, signal-to-noise ratio, SNR, spread spectrum communication, spread-spectrum communications, ultra wideband communication, ultrawideband communications, Upper bound
@inproceedings{Koch2011,
title = {Asymmetric Quantizers are Better at Low SNR},
author = {Tobias Koch and Amos Lapidoth},
url = {http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=6034037},
issn = {2157-8095},
year = {2011},
date = {2011-01-01},
booktitle = {2011 IEEE International Symposium on Information Theory Proceedings},
pages = {2592--2596},
publisher = {IEEE},
address = {St. Petersburg},
abstract = {We study the behavior of channel capacity when a one-bit quantizer is employed at the output of the discrete-time average-power-limited Gaussian channel. We focus on the low signal-to-noise ratio regime, where communication at very low spectral efficiencies takes place, as in Spread-Spectrum and Ultra-Wideband communications. It is well known that, in this regime, a symmetric one-bit quantizer reduces capacity by 2/$pi$, which translates to a power loss of approximately two decibels. Here we show that if an asymmetric one-bit quantizer is employed, and if asymmetric signal constellations are used, then these two decibels can be recovered in full.},
keywords = {asymmetric one-bit quantizer, asymmetric signal constellations, channel capacity, Channel Coding, Constellation diagram, Decoding, discrete-time average-power-limited Gaussian chann, Gaussian channels, quantization, Signal to noise ratio, signal-to-noise ratio, SNR, spread spectrum communication, spread-spectrum communications, ultra wideband communication, ultrawideband communications, Upper bound},
pubstate = {published},
tppubtype = {inproceedings}
}
2009
Bravo-Santos, Ángel M; Djuric, Petar M
Cooperative Relay Communications in Mesh Networks Proceedings Article
En: 2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications, pp. 499–503, IEEE, Perugia, 2009, ISBN: 978-1-4244-3695-8.
Resumen | Enlaces | BibTeX | Etiquetas: binary transmission, bit error probability, Bit error rate, cooperative relay communications, decode-and-forward relays, Detectors, error statistics, Maximum likelihood decoding, maximum likelihood detection, Mesh networks, mesh wireless networks, multi-hop networks, Network topology, optimal node decision rules, Peer to peer computing, radio networks, Relays, spread spectrum communication, telecommunication network topology, Wireless Sensor Networks
@inproceedings{Bravo-Santos2009,
title = {Cooperative Relay Communications in Mesh Networks},
author = {\'{A}ngel M Bravo-Santos and Petar M Djuric},
url = {http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=5161835},
isbn = {978-1-4244-3695-8},
year = {2009},
date = {2009-01-01},
booktitle = {2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications},
pages = {499--503},
publisher = {IEEE},
address = {Perugia},
abstract = {In previous literature on cooperative relay communications, the emphasis has been on the study of multi-hop networks. In this paper we address mesh wireless networks that use decode-and-forward relays for which we derive the optimal node decision rules in case of binary transmission. We also obtain the expression for the overall bit error probability. We compare the mesh networks with multi-hop networks and show the improvement in performance that can be achieved with them when both networks have the same number of nodes and equal number of hops.},
keywords = {binary transmission, bit error probability, Bit error rate, cooperative relay communications, decode-and-forward relays, Detectors, error statistics, Maximum likelihood decoding, maximum likelihood detection, Mesh networks, mesh wireless networks, multi-hop networks, Network topology, optimal node decision rules, Peer to peer computing, radio networks, Relays, spread spectrum communication, telecommunication network topology, Wireless Sensor Networks},
pubstate = {published},
tppubtype = {inproceedings}
}