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Now showing items 21-30 of 34
Minimization Problems Based On A Parametric Family Of Relative Entropies
(2017-08-21)
We study minimization problems with respect to a one-parameter family of generalized relative entropies. These relative entropies, which we call relative -entropies (denoted I (P; Q)), arise as redundancies under mismatched ...
Optimal Amplify-And-Forward Relaying For Cooperative Communications And Underlay Cognitive Radio
(2017-08-21)
Relay-assisted cooperative communication exploits spatial diversity to combat wireless fading, and is an appealing technology for next generation wireless systems. Several relay cooperation protocols have been proposed in ...
On The Best-m Feedback Scheme In OFDM Systems With Correlated Subchannels
(2017-07-07)
Orthogonal frequency division multiplexing (OFDM) in next generation wireless systems provides high downlink data rates by employing frequency-domain scheduling and rate adaptation at the base station (BS). However, in ...
Source And Channel Coding Techniques for The MIMO Reverse-link Channel
(2017-09-28)
In wireless communication systems, the use of multiple antennas, also known as Multiple-Input Multiple-Output(MIMO) communications, is now a widely accepted and important technology for improving their reliability and ...
Joint Estimation of Impairments in MIMO-OFDM Systems
(2017-11-16)
The integration of Multiple Input Multiple Output (MIMO) and Orthogonal Frequency Division Multiplexing (OFDM) techniques has become a preferred solution for the high rate wireless technologies due to its high spectral ...
Role of Channel State Information in Adaptation in Current and Next Generation Wireless Systems
(2017-11-24)
Motivated by the increasing demand for higher data rates, coverage, and spectral efficiency, current and next generation wireless systems adapt transmission parameters and even who is being transmitted to, based on the ...
Exploration of Displacement Detection Mechanisms in MEMS Sensors
(2017-11-14)
MEMS Sensors are widely used for sensing inertial displacements. The displacements arising out of acceleration /Coriolis effect are typically in the range of 1 nm-1 m. This work investigates the realization of high resolution ...
Belief Propagation and Algorithms for Mean-Field Combinatorial Optimisations
(2017-11-15)
We study combinatorial optimization problems on graphs in the mean-field model, which assigns independent and identically distributed random weights to the edges of the graph. Specifically, we focus on two generalizations ...
Algorithms for Homogeneous Quadratic Minimization And Applications in Wireless Networks
(2017-11-09)
Massive proliferation of wireless devices throughout world in the past decade comes with a host of tough and demanding design problems. Noise at receivers and wireless interference are the two major issues which severely ...
Interference Modeling in Wireless Networks
(2017-10-26)
Cognitive radio (CR) networks and heterogeneous cellular networks are promising approaches to satisfy the demand for higher data rates and better connectivity. A CR network increases the utilization of the radio spectrum ...