Results 21 to 30 of about 12,474 (262)

Model of microwave link channel with adaptive modulation under the fading conditions [PDF]

open access: yesE3S Web of Conferences, 2022
Higher throughput requirements of the radio access network (RAN) of 5th generation (5G) network lead in turn to even more higher capacity require-ments of wireless backhaul segment.
Stepanets Irina, Odoevskii Sergei
doaj   +1 more source

Closed-form Distribution and Analysis of a Combined Nakagami-lognormal Shadowing and Unshadowing Fading Channel

open access: yesJournal of Telecommunications and Information Technology, 2016
The realistic wireless channels face combined (time shared) Nakagami-lognormal shadowing and unshadowing fading because of time varying nature of radio channel and mobile user.
Rupender Singh, Meenakshi Rawat
doaj   +1 more source

Estimation of FBMC/OQAM Fading Channels Using Dual Kalman Filters

open access: yesThe Scientific World Journal, 2014
We address the problem of estimating time-varying fading channels in filter bank multicarrier (FBMC/OQAM) wireless systems based on pilot symbols. The standard solution to this problem is the least square (LS) estimator or the minimum mean square error ...
Mahmoud Aldababseh, Ali Jamoos
doaj   +1 more source

Wideband Fading Channels With Feedback [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
The Rayleigh flat fading channel at low SNR is considered. With full channel state information (CSI) at the transmitter and receiver, its capacity is shown to be essentially SNR log(1SNR) nats/symbol, as SNR goes to zero. In fact, this rate can be achieved with a just one bit of CSI at the transmitter (per fading realization) and with no receiver CSI ...
Borade, Shashi, Zheng, Lizhong
openaire   +2 more sources

The Streaming-DMT of Fading Channels [PDF]

open access: yesIEEE Transactions on Information Theory, 2014
We consider the sequential transmission of a stream of messages over a block-fading multi-input-multi-output (MIMO) channel. A new message arrives at the beginning of each coherence block, and the decoder is required to output each message sequentially, after a delay of $T$ coherence blocks.
Ashish Khisti, Stark C. Draper
openaire   +2 more sources

Compensating for Channel Fading in DS-CDMA Communication Systems Employing ICA Neural Network Detectors [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2005
In this paper we examine the impact of channel fading on the bit error rate of a DS-CDMA communication system. The system employs detectors that incorporate neural networks effecting methods of independent component analysis (ICA), subspace estimation of
David Overbye, Roland Priemer
doaj  

Channel Modelling and Performance Analysis of the Near Space based on the DS Signal System

open access: yesMATEC Web of Conferences, 2016
In order to describe the near space communication channel efficiently and analyse the the reasons that cause quality deterioration of ground-to-air communication link, design the Channel modelling program of the near space and establish the near space ...
Sun Ke, Hou Xiaomin, Zhao Qiang
doaj   +1 more source

Normal approximations for fading channels [PDF]

open access: yes2018 52nd Annual Conference on Information Sciences and Systems (CISS), 2018
Capacity and outage capacity characterize the maximum coding rate at which reliable communication is feasible when there are no constraints on the packet length. Evaluated for fading channels, they are important performance benchmarks for wireless communication systems. However, the latency of a communication system is proportional to the length of the
Alejandro Lancho   +2 more
openaire   +2 more sources

On the Secrecy Capacity of Fading Channels [PDF]

open access: yes2007 IEEE International Symposium on Information Theory, 2007
We consider the secure transmission of information over an ergodic fading channel in the presence of an eavesdropper. Our eavesdropper can be viewed as the wireless counterpart of Wyner's wiretapper. The secrecy capacity of such a system is characterized under the assumption of asymptotically long coherence intervals. We first consider the full Channel
Praveen Kumar Gopala   +2 more
openaire   +3 more sources

Secret Sharing over Fast-Fading MIMO Wiretap Channels

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
Secret sharing over the fast-fading MIMO wiretap channel is considered. A source and a destination try to share secret information over a fast-fading MIMO channel in the presence of an eavesdropper who also makes channel observations that are different ...
Tan F. Wong   +2 more
doaj   +2 more sources

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