Foreword from Arogyaswami Paulraj, Professor (Emeritus), Stanford University (USA) The
first book to show how MIMO principles can be implemented in today's mobile broadband …

Spectrum sensing is a key enabler of cognitive radio but generally suffers from what is called
a signal-to-noise ratio (SNR) wall, ie, a minimum SNR below which it is impossible to …

In this paper, we study the spectrum sensing problem when the sensing device is equipped
with an uncalibrated multiantenna array. We consider an unknown Toeplitz structure for the …

We consider the reciprocity of the information-theoretic channel of Time Division Duplex
(TDD) Multi-User-Multiple Input Multiple Output (MU-MIMO) systems in the up-and downlink …

ABSTRACT KUNDU, LOPAMUDRA. Information-Theoretic Limits on MIMO Antennas.(Under
the direction of Dr. Brian L. Hughes.) Multiple-input-multiple-output (MIMO) technique has …

A significant challenge in spectrum sensing is to lessen the signal to noise ratio needed to
detect the presence of primary users while the noise level may also be unknown. To meet …

In this paper, we consider the problem of spectrum sensing in cognitive radios (CRs) when
the receiver of the secondary user (SU) is equipped with a multiantenna system. Using an …

We consider joint channel and antenna impedance estimation based on training data for
single-input, single-output channels. The aim is to leverage the resources available in …

This paper considers a hybrid approach to joint estimation of channel information and
antenna impedance, for single-input, single-output channels. Based on observation of …

We address the problem of spectrum sensing in cognitive radios (CRs) when the secondary
user (SU) is equipped with a multiantenna receiver. We consider scenarios with correlation …