Zobrazeno 1 - 10
of 70
pro vyhledávání: '"S.S. Ghassemzadeh"'
Publikováno v:
IEEE Transactions on Vehicular Technology. 60:1677-1686
In this paper, we study the adjacent geostationary satellite interference to/from on-the-move platforms with motion-induced antenna pointing errors. First, using satellite geometry, we derive tight upper and lower bounds for the average uplink and do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b175e2bd75976165f1151a4f3f3860d
https://doi.org/10.1109/tvt.2011.2128356
https://doi.org/10.1109/tvt.2011.2128356
Publikováno v:
IEEE Transactions on Vehicular Technology. 58:4000-4012
Fixed wireless channels in suburban macrocells are subject to fading due to scattering by moving objects such as windblown trees and foliage in the environment. When, as is often the case, the fading follows a Ricean distribution, the first-order sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0aa95b4548b608cc635fc1e10ebb847
https://doi.org/10.1109/tvt.2009.2018549
https://doi.org/10.1109/tvt.2009.2018549
Publikováno v:
IEEE Transactions on Wireless Communications. 8:4220-4229
Fixed wireless multipoint communication systems are increasingly being deployed in suburban macrocell environments, either to provide voice and data services to residences (wideband systems) or to supply automated meter reading and related supervisor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52ca8dba795ada3e0e0dc6a4d271f1d1
https://doi.org/10.1109/twc.2009.080853
https://doi.org/10.1109/twc.2009.080853
Publikováno v:
IEEE Transactions on Communications. 54:364-373
We construct nonuniform phase-shift keying (PSK) constellations that provide unequal error protection for multiclass traffic such as compressed voice and video data. Then closed-form expressions expression for the exact bit-error rate (BER) of the no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22d6a29faeaaa8d6eac8e513d5a7f5ab
https://doi.org/10.1109/tcomm.2005.863725
https://doi.org/10.1109/tcomm.2005.863725
Publikováno v:
IEEE Transactions on Vehicular Technology. 54:1235-1244
We present models for the ultrawideband (UWB) channel delay profile in indoor environments, based on the processing of two large sets of measured data. Both measurement sets are for a center frequency of 5 GHz, but the bandwidths are very different-1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04ba836e9d9a4441352a50241dc9f8b5
https://doi.org/10.1109/tvt.2005.851379
https://doi.org/10.1109/tvt.2005.851379
Publikováno v:
IEEE Transactions on Communications. 52:1786-1796
This paper describes the results of frequency-domain channel sounding in residential environments. It consists of detailed characterization of complex frequency responses of ultra-wideband (UWB) signals having a nominal center frequency of 5 GHz. A p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4917f86103bd53f7d6af2dcb185f6626
https://doi.org/10.1109/tcomm.2003.820755
https://doi.org/10.1109/tcomm.2003.820755
Autor:
Larry J. Greenstein, Aleksandar Kavcic, Thorvardur Sveinsson, S.S. Ghassemzadeh, Vahid Tarokh
Publikováno v:
Journal of Communications and Networks. 5:303-308
We present a statistical model for the path loss of ultra-wideband (UWB) channels in indoor environments. In contrast to our previously reported measurements, the data reported here are for a bandwidth of 6GHz rather than 1.25GHz; they encompass comm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfa150ef7c50b00dc46e9f930d07a6c5
https://doi.org/10.1109/jcn.2003.6596612
https://doi.org/10.1109/jcn.2003.6596612
Autor:
S.C. Wang, V. Erceg, Anthony Joseph Rustako, Robert Stephen Roman, P.B. Guerlain, S.S. Ghassemzadeh, David G. Michelson, D.J. Barnickel, Lawrence Joel Greenstein, M.K. Dennison, R.R. Miller
Publikováno v:
IEEE Journal on Selected Areas in Communications. 17:399-410
This paper deals with the measurement and modeling of multipath delay on fixed wireless paths at 1.9 GHz in suburban environments. The primary focus is on the delay profile, which is the normalized plot of received power versus delay in response to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03fbb4132b1cca10ed20c1d7be129f40
https://doi.org/10.1109/49.753726
https://doi.org/10.1109/49.753726
Publikováno v:
2011 12th Canadian Workshop on Information Theory.
Reducing interference induced by secondary users is one of the most challenging problems in spectrum sharing. In this paper, we derive the optimum transmission strategy that minimizes the average interference power created by cognitive radios at a gi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2818e89cd737947eab7a89ca645b544
https://doi.org/10.1109/cwit.2011.5872115
https://doi.org/10.1109/cwit.2011.5872115
Publikováno v:
2011 12th Canadian Workshop on Information Theory.
In this paper, we study the group randomness of pseudo-random sequences based on shortened first-order Reed-Muller codes and the Gold sequences. In particular, we characterize the empirical spectral distribution of random matrices from shortened firs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5886b2e7ab00d06e547b0ffe82e6bd2f
https://doi.org/10.1109/cwit.2011.5872120
https://doi.org/10.1109/cwit.2011.5872120