29 citations · 40 across the 7 of their papers we have counts for
7 papers
Least-Squares Design of Chromatic Dispersion Compensation FIR Filters Realized with Overlap-Save Processing
Oscar Gustafsson, Cheolyong Bae, Hakan Johansson
A design method for chromatic dispersion compensation filters realized using overlap-save processing in the frequency domain is proposed. Based on the idea to use the values that a…
Low-Complexity Memoryless Linearizer for Analog-to-Digital Interfaces
Deijany Rodriguez Linares, Håkan Johansson
This paper introduces a low-complexity memoryless linearizer for suppression of distortion in analog-to-digital interfaces. It is inspired by neural networks, but has a substantial…
On Frequency-Domain Implementation of Digital FIR Filters Using Overlap-Add and Overlap-Save Techniques
Hakan Johansson, Oscar Gustafsson
In this paper, new insights in frequency-domain implementations of digital finite-length impulse response filtering (linear convolution) using overlap-add and overlap-save techniqu…
Performance Analysis of Quantized Uplink Massive MIMO-OFDM With Oversampling Under Adjacent Channel Interference
Ali Bulut Üçüncü, Emil Björnson, Håkan Johansson +2
Massive multiple-input multiple-output (MIMO) systems have attracted much attention lately due to the many advantages they provide over single-antenna systems. Owing to the many an…
Optimal Least-Squares Estimator and Precoder for Energy Beamforming over IQ-Impaired Channels
Deepak Mishra, Håkan Johansson
Usage of low-cost hardware in large antenna arrays and low-power wireless devices in Internet-of-Things (IoT) has led to the degradation of practical beamforming gains due to the u…
Optimal Channel Estimation for Hybrid Energy Beamforming under Phase Shifter Impairments
Deepak Mishra, Håkan Johansson
Smart multiantenna wireless power transmission can enable perpetual operation of energy harvesting (EH) nodes in the internet-of-things. Moreover, to overcome the increased hardwar…
Minimax Design and Order Estimation of FIR Filters for Extending the Bandwidth of ADCs
Yinan Wang, Hakan Johansson, Hui Xu +1
The bandwidth of the sampling systems, especially for time-interleaved analog-to-digital converters, needs to be extended along with the rapid increase of the sampling rate. A digi…