Zobrazeno 1 - 10
of 68
pro vyhledávání: '"A.K. Karmokar"'
Publikováno v:
New Horizons in Earth Reinforcement ISBN: 9781003416753
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5d4269538bfa3766a2c2f0ee5b42d02
https://doi.org/10.1201/9781003416753-32
https://doi.org/10.1201/9781003416753-32
Publikováno v:
Energies, Vol 7, Iss 4, Pp 2535-2557 (2014)
Energies
Volume 7
Issue 4
Pages 2535-2557
Energies
Volume 7
Issue 4
Pages 2535-2557
We study the energy-efficient power allocation techniques for OFDM-based cognitive radio (CR) networks, where a CR transmitter is communicating with CR receivers on a channel borrowed from licensed primary users (PUs). Due to non-orthogonality of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85a5e73f14ef155755f2fe9fcfc6ca93
https://doi.org/10.32920/14638455
https://doi.org/10.32920/14638455
Publikováno v:
Sensors (Basel, Switzerland)
Sensors; Volume 13; Issue 8; Pages: 11032-11050
Sensors, Vol 13, Iss 8, Pp 11032-11050 (2013)
Sensors; Volume 13; Issue 8; Pages: 11032-11050
Sensors, Vol 13, Iss 8, Pp 11032-11050 (2013)
Designing energy-efficient cognitive radio sensor networks is important to intelligently use battery energy and to maximize the sensor network life. In this paper, the problem of determining the power allocation that maximizes the energy-efficiency o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ba75cd5e072f649d3040cccdbba6b25
https://doi.org/10.32920/14640453.v1
https://doi.org/10.32920/14640453.v1
Publikováno v:
IEEE Systems Journal. 12:1034-1037
We study an energy efficiency (EE)-optimized power allocation technique for a source and a relay in a cooperative cognitive radio network. We formulate the optimization problem with the constraint on probabilistic interference parameters and throughp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1922926408c9fb0dc5ee58e057a4681
https://doi.org/10.1109/jsyst.2015.2451996
https://doi.org/10.1109/jsyst.2015.2451996
Autor:
H. Hazarika, T. Sugano, Y. Kikuchi, K. Yasuhara, S. Murakami, H. Takeichi, A.K. Karmokar, T. Kishida, Y. Mitarai
Publikováno v:
Geomechanics and Geotechnics of Particulate Media ISBN: 9781315106656
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6133f579f6dc283184fbdb1e37c11a5
https://doi.org/10.1201/9781315106656-74
https://doi.org/10.1201/9781315106656-74
Publikováno v:
IET Communications. 8:2666-2675
The authors study the opportunistic spectrum access techniques for hybrid overlay-underlay cognitive radio networks. A secondary user (SU) chooses a channel, transmission mode and adjusts its power so that the interference limit is not crossed and it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1263ce6694b7a3a5a11d2dbaff02a287
https://doi.org/10.1049/iet-com.2013.0796
https://doi.org/10.1049/iet-com.2013.0796
Publikováno v:
IET Communications. 8:578-586
We investigate the optimal allocation of power in the downlink cooperative cognitive radio network using decode and forward (DF) relaying technique. The power allocation in DF relaying for green cooperative cognitive radio with an objective of maximi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d933cc30b4cc7c8fe0151d99f5766b2
https://doi.org/10.1049/iet-com.2013.0119
https://doi.org/10.1049/iet-com.2013.0119
Publikováno v:
Journal of Communications and Networks. 16:56-66
We propose a novel opportunistic access scheme for cognitive radios in an interweave cognitive system, that considers the channel gain as well as the predicted idle channel probability (primary user occupancy: Busy/idle). In contrast to previous work
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e46a40e6a645fe3a01accc142e0e1b65
https://doi.org/10.1109/jcn.2014.000009
https://doi.org/10.1109/jcn.2014.000009
Autor:
Alagan Anpalagan, A.K. Karmokar
Publikováno v:
Transactions on Emerging Telecommunications Technologies. 24:762-776
In this paper, we investigate cross-layer adaptive rate scheduling techniques for cognitive green radio networks, where a secondary base station is communicating with secondary users (SUs). The base station is equipped with individual finite size buf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3a65c5093ec3bf070ac2841c8d13a37
https://doi.org/10.1002/ett.2726
https://doi.org/10.1002/ett.2726
Publikováno v:
IET Communications. 7:1279-1286
In this study, the problem of determining the power allocation that maximises the energy efficiency of cognitive radio network is investigated as a constrained fractional programming problem. The energy-efficient fractional objective is defined in te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25dc23d4f85a9ed2288c9b2da91b5f25
https://doi.org/10.1049/iet-com.2012.0604
https://doi.org/10.1049/iet-com.2012.0604