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Exact SINR analysis of OFDM systems under joint Tx/RX I/Q imbalance
(
IEEE
, 2013 , Conference Paper)
The direct-conversion architecture used for Orthogonal Frequency Division Multiplexing (OFDM) systems suffers from intercarrier interference (ICI) between image subcarriers in each OFDM symbol due to I/Q imbalance between ...
A general framework for the design and analysis of sparse FIR linear equalizers
(
Institute of Electrical and Electronics Engineers Inc.
, 2016 , Conference Paper)
Complexity of linear finite-impulse-response (FIR) equalizers is proportional to the square of the number of nonzero taps in the filter. This makes equalization of channels with long impulse responses using either zero-forcing ...
Quasi-sparsest solutions for quantized compressed sensing by graduated-non-convexity based reweighted ?1minimization
(
European Signal Processing Conference, EUSIPCO
, 2016 , Conference Paper)
In this paper, we address the problem of sparse signal recovery from scalar quantized compressed sensing measurements, via optimization. To compensate for compression losses due to dimensionality reduction and quantization, ...
On quantized compressed sensing with saturated measurements via convex optimization
(
European Signal Processing Conference, EUSIPCO
, 2016 , Conference Paper)
In this paper, we address the problem of sparse signal recovery, from multi-bit scalar quantized compressed sensing measurements, where the saturation issue is taken into account. We propose a convex optimization approach, ...
Sparsity-aware joint frame synchronization and channel estimation: Algorithm and USRP implementation
(
Institute of Electrical and Electronics Engineers Inc.
, 2017 , Conference Paper)
Conventional correlation-based frame synchronization techniques can suffer significant performance degradation over multi-path frequency-selective channels. As a remedy, in this paper we consider joint frame synchronization ...
Design and analysis framework for sparse FIR channel shortening
(
Institute of Electrical and Electronics Engineers Inc.
, 2016 , Conference Paper)
A major performance and complexity limitation in broadband communications is the long channel delay spread which results in a highly-frequency-selective channel frequency response. Channel shortening equalizers (CSEs) are ...
Coexistence of IEEE 802154g and WLAN
(
Hamad bin Khalifa University Press (HBKU Press)
, 2018 , Conference Paper)
The aging electric grid was established hundred years ago when electricity needs were simple. The power plants were centralized and most homes had only small energy demands such as few lamps and radios. The grid role was ...
Sparsity-aware Multiple Relay Selection In Large Decode-and-forward Relay Networks
(
Hamad bin Khalifa University Press (HBKU Press)
, 2014 , Conference Paper)
Cooperative communication is a promising technology that has attracted significant attention recently thanks to its ability to achieve spatial diversity in wireless networks with only single-antenna nodes. The different ...
A General Framework for Designing Sparse FIR MIMO Equalizers Based on Sparse Approximation
(
Hamad bin Khalifa University Press (HBKU Press)
, 2016 , Conference Paper)
In broadband communications, the long channel delay spread, defined as the duration in time, or samples, over which the channel impulse response (CIR) has significant energy, is too long and results in a highly-frequency-selective ...
A sparsity-aware cooperative protocol for cognitive radio networks with energy-harvesting primary user
(
IEEE
, 2015 , Conference Paper)
We consider a cognitive setting composed of multiple primary frequency bands each of which consists of a limited-battery energy-harvesting primary user and a secondary user. The primary user is equipped with a limited-capacity ...