Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Kostas Dangakis"'
Publikováno v:
IET Communications. 6:2040-2047
The authors present an alternative moments-based approach for the performance analysis of dual-hop relaying communications systems over generalised fading channels. A unified analytical approach for the computation of the nth moment of the harmonic m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ddfb490c553052087541ba1662b4374
https://doi.org/10.1049/iet-com.2011.0231
https://doi.org/10.1049/iet-com.2011.0231
Autor:
Antonis A. Alexandridis, Dimitra I. Kaklamani, Fotis Lazarakis, Kostas P. Peppas, Kostas Dangakis, T. Zervos, A. Michalopoulou
Publikováno v:
IEEE Transactions on Antennas and Propagation. 60:4014-4019
An investigation of the fading experienced by on-body diversity channels at 2.45 GHz is presented by focusing on the effects of the receive antennas position and the human body movement. This investigation is based on the conduction and analysis of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c53e63b254dd62ac6806ebd61f631444
https://doi.org/10.1109/tap.2012.2201073
https://doi.org/10.1109/tap.2012.2201073
Autor:
Kostas Dangakis, Kostas P. Peppas, Antonis A. Alexandridis, Fotis Lazarakis, Charalabos Skianis
Publikováno v:
IEEE Communications Surveys & Tutorials. 13:708-720
Next generation wireless communication networks integrate in a seamless manner existing technologies such as 3G wireless networks and WLANs in order to create a heterogeneous system with improved capacity and complementary coverage. Besides, they sup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b38ed1ee29cc04d23fb9ba44be71c36
https://doi.org/10.1109/surv.2011.082010.00087
https://doi.org/10.1109/surv.2011.082010.00087
Publikováno v:
IEEE Transactions on Wireless Communications. 9:2718-2723
In this paper, new expressions for the probability density function (pdf) of the sum of non-identical independent squared η-μ random variables are derived. Based on our newly derived results, we provide a pdf-based approach for the performance anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b264f6e8067cab3b7195ba401d947c8d
https://doi.org/10.1109/twc.2010.071410.091839
https://doi.org/10.1109/twc.2010.071410.091839
Autor:
Antonis A. Alexandridis, Fotis Lazarakis, Nikos C. Sagias, George S. Tombras, Kostas Dangakis
Publikováno v:
Wireless Personal Communications. 56:649-668
A statistical analysis for the channel capacity (CC) for several diversity receivers under optimal rate adaptation with constant transmit power is provided. Independent but not necessarily identically distributed Nakagami-m fading channels are consid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e03ef167be49c157051f36658b2ab8da
https://doi.org/10.1007/s11277-009-9837-6
https://doi.org/10.1007/s11277-009-9837-6
Publikováno v:
IEEE Transactions on Wireless Communications. 8:4974-4980
This paper provides exact-form expressions for the average symbol error probability (ASEP) of various digital modulation schemes with maximal ratio combining (MRC) diversity over L independent, not necessarily identically distributed (n.i.d.) eta-mu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b94df3b99f4896ee8be2341d795c0734
https://doi.org/10.1109/twc.2009.081687
https://doi.org/10.1109/twc.2009.081687
Autor:
Kostas Dangakis, Antonis A. Alexandridis, Vasilis Christofilakis, Fotis Lazarakis, Panos Kostarakis
Publikováno v:
AEU - International Journal of Electronics and Communications. 62:49-56
The direction-of-transmission (DOT) resolution of a digital time-delay beamformer (DTDBF) is directly related to sampling intervals. In fact, the smaller the sampling intervals the better the DOT resolution and the larger the number of natural beams.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64f3ac841dfa8d5ae3b9577b2a6f4dd6
https://doi.org/10.1016/j.aeue.2007.10.006
https://doi.org/10.1016/j.aeue.2007.10.006
Autor:
Kostas Dangakis, Antonis A. Alexandridis, A. Michalopoulou, Eleftherios Koxias, S. Papaharalabos, Panayotis G. Cottis, Fotis Lazarakis
Publikováno v:
Panhellenic Conference on Informatics
Several cooperative transmission techniques have been studied in previous research works but very few of them have considered the trade-off between diversity gain and energy efficiency, which is important in cases, such as wireless sensor networks. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e3f70d9032aaaa2a57fecef9953ea48
https://doi.org/10.1145/2801948.2802007
https://doi.org/10.1145/2801948.2802007
Autor:
Kostas Dangakis, Evangelos S. Angelopoulos, Antonis A. Alexandridis, A. Z. Anastopoulos, Dimitra I. Kaklamani, Fotis Lazarakis
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 5:294-297
This letter presents novel circular and elliptical coplanar waveguide (CPW)-fed slot and mictrostip-fed antenna designs targeting the 3.1?10.6 GHz band. The antennas are comprised of elliptical or circular stubs that excite similar-shaped slot apertu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0483d3c6a1c9c37f98914f59c4272132
https://doi.org/10.1109/lawp.2006.878882
https://doi.org/10.1109/lawp.2006.878882
Autor:
Antonis A. Alexandridis, Argyris Z. Anastopoulos, Evangelos S. Angelopoulos, Kostas Dangakis, Dimitra I. Kaklamani, Fotis Lazarakis
Publikováno v:
Microwave and Optical Technology Letters. 48:1824-1828
This study presents a broadband microstrip slot array structure with a novel feeding technique, which offers enhanced bandwidth and very low cross-polarization levels, targeting the satellite reception application market in the Ku-Band. The single el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f5e877498fea9885fe2dc8c258ad541
https://doi.org/10.1002/mop.21791
https://doi.org/10.1002/mop.21791