Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Chun Sum Ng"'
Publikováno v:
IEEE Transactions on Communications. 57:3034-3044
Multi-hop relaying is an economically efficient architecture for coverage extension and throughput enhancement in future wireless networks. OFDM, on the other hand, is a spectrally efficient physical layer modulation technique for broadband transmiss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33a022ba471a9df2eef8b71512605a8a
https://doi.org/10.1109/tcomm.2009.10.080223
https://doi.org/10.1109/tcomm.2009.10.080223
Autor:
Qi Zhang, Chun Sum Ng
Publikováno v:
IEEE Transactions on Communications. 56:608-618
Ultra-wideband (UWB) communication systems are expected to operate in a highly frequency-selective multipath fading environment. To exploit multipath diversity gains in a multiuser scenario, we developed a differentially-encoded, di-symbol time-divis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2142ef94308efdd2d4aa5805554a1847
https://doi.org/10.1109/tcomm.2008.060436
https://doi.org/10.1109/tcomm.2008.060436
Autor:
Qi Zhang, Chun Sum Ng
Publikováno v:
IEEE Transactions on Wireless Communications. 7:806-811
For transmitted-reference impulse radio, it has been experimentally shown that multiple transmit antennas can provide an energy boost in the received signal. Here, we propose a 2-transmit and Q-receive differential space-time block coded impulse radi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c43b39d7789c4ee9c0ce95e4d9f85027
https://doi.org/10.1109/twc.2008.060753
https://doi.org/10.1109/twc.2008.060753
Autor:
Chun Sum Ng, Zhemin Xu
Publikováno v:
International Journal on Wireless & Optical Communications. :23-41
In this paper, we address the error probability performance of space-time block coded system (STBC) in multipath Rayleigh fading channel. We consider STBC with rate one for two transmit antennae and rate half for three transmit antennae, and present
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b88b11cf690cc3d71b6e26f2716e3357
https://doi.org/10.1142/s0219799507000515
https://doi.org/10.1142/s0219799507000515
Publikováno v:
IEEE Transactions on Communications. 53:1795-1798
Explicit closed-form expressions of the bit-error probabilities are obtained for space-time block codes based on generalized orthogonal designs with differential encoding and differential detection using 2/sup b/-ary phase-shift keying mapping. The f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21268b7edd03edd734cf2a3c9e8f5471
https://doi.org/10.1109/tcomm.2005.858657
https://doi.org/10.1109/tcomm.2005.858657
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 38:374-382
A new technique for inversed synthetic aperture radar (ISAR) ranging, which resembles the principle of the Vernier measuring system, is presented. In this technique, the transmitted ISAR pulse comprises a train of chirp subpulses with uniformly stepp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c828088577acde82aec5da27ca4a22c7
https://doi.org/10.1109/36.823933
https://doi.org/10.1109/36.823933
Publikováno v:
IEEE Transactions on Consumer Electronics. 46:131-136
A new digital multitone (DMT)-digital subscriber loop (DSL) system with MDPSK modulation for each subcarrier is proposed in this paper. The error performance of the system in the presence of additive white Gaussian noise (AWGN) and impulse noise (IN)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47be32847e712c31e42ede620a8fa107
https://doi.org/10.1109/30.826390
https://doi.org/10.1109/30.826390
Publikováno v:
Journal of Communications and Networks. 1:231-237
The transmission of high-speed data over Digital Subscriber Loop (DSL) can be accomplished through the use of Discrete Multitone (DMT). Due to the frequency dependent channel distortion and crosstalk, there is a need to determine the performance of D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9052750e5f247a84c01697e4d349c50
https://doi.org/10.1109/jcn.1999.6597004
https://doi.org/10.1109/jcn.1999.6597004
Publikováno v:
IEEE Transactions on Signal Processing. 47:1866-1877
This paper presents an improved weighted least squares (WLS) algorithm for the design of quadrature mirror filters (QMFs), First, a new term is incorporated into the objective function that effectively prevents an optimization algorithm from producin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fb3359985c67786ef87173be610dfed
https://doi.org/10.1109/78.771036
https://doi.org/10.1109/78.771036
Publikováno v:
PIMRC
We construct a finite-state Markov chain model for a Rayleigh fading channel by partitioning the range of the received signal envelope into K intervals. From a simulation of the classic two-way Rayleigh fading model, a Markov transition probability m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b673bb2e6265af2ee1aaa802a0d47d79
https://doi.org/10.1023/a:1019166020294
https://doi.org/10.1023/a:1019166020294