The impulse response of wireless channels between the Nt transmit and Nr receive
antennas of a MIMO-OFDM system are group approximately sparse (ga-sparse), ie, the NtNr …

In this paper, we propose a novel scattered pilot method for channel estimation in filter-bank
multicarrier with offset quadrature amplitude modulation (FBMC-OQAM) systems. We refer to …

(57) ABSTRACT A MIMO system supports multiple spatial multiplexing modes for improved
performance and greater flexibility. These modes may include (1) a single-user steered …

In this work, we discuss techniques for coherently detecting turbo coded orthogonal
frequency division multiplexed (OFDM) signals, transmitted through frequency selective …

This paper presents a novel recovery algorithm based on sparsity adaptive matching pursuit
(SaMP) and a new near-optimal pilot placement scheme, for compressed sensing (CS) …

Unlocking the true potential of massive antenna arrays for cellular networks operating in
frequency division duplex (FDD) mode is a challenging task as inadequate channel state …

Techniques to use OFDM symbols of different sizes to achieve greater efficiency for OFDM
systems. The system traffic may be arranged into different categories (eg, control data, user …

Multilayer perceptron (MLP) based artificial neural network (ANN) equalizers, deploying
back propagation (BP) training algorithm, have been profusely used for equalization earlier …

This paper considers the problem of tracking a dynamic sparse channel in a broadband
wireless communication system. A probabilistic signal model is firstly proposed to describe …

Dynamic spectrum access (DSA) is the key to solving worldwide wireless spectrum
shortage. In a DSA system, unlicensed secondary users can opportunistically use a …