133 citations · 373 across the 11 of their papers we have counts for
10 papers · 1 filter
Receiver Algorithm based on Differential Signaling for SIMO Phase Noise Channels with Common and Separate Oscillator Configurations
M. Reza Khanzadi, Rajet Krishnan, Thomas Eriksson
In this paper, a receiver algorithm consisting of differential transmission and a two-stage detection for a single-input multiple-output (SIMO) phase-noise channels is studied. Spe…
On the Capacity of the Wiener Phase-Noise Channel: Bounds and Capacity Achieving Distributions
M. Reza Khanzadi, Rajet Krishnan, Johan Söder +1
In this paper, the capacity of the additive white Gaussian noise (AWGN) channel, affected by time-varying Wiener phase noise is investigated. Tight upper and lower bounds on the ca…
Linear Massive MIMO Precoders in the Presence of Phase Noise -- A Large-Scale Analysis
R. Krishnan, M. R. Khanzadi, N. Krishnan +4
We study the impact of phase noise on the downlink performance of a multi-user multiple-input multiple-output system, where the base station (BS) employs a large number of transmit…
Capacity of SIMO and MISO Phase-Noise Channels with Common/Separate Oscillators
M. Reza Khanzadi, Giuseppe Durisi, Thomas Eriksson
In multiple antenna systems, phase noise due to instabilities of the radio-frequency (RF) oscillators, acts differently depending on whether the RF circuitries connected to each an…
Effect of Synchronizing Coordinated Base Stations on Phase Noise Estimation
M. Reza Khanzadi, Rajet Krishnan, Thomas Eriksson
In this paper, we study the problem of oscillator phase noise (PN) estimation in coordinated multi-point (CoMP) transmission systems. Specifically, we investigate the effect of pha…
Estimation of phase noise in oscillators with colored noise sources
M. Reza Khanzadi, Rajet Krishnan, Thomas Eriksson
In this letter we study the design of algorithms for estimation of phase noise (PN) with colored noise sources. A soft-input maximum a posteriori PN estimator and a modified soft-i…
Oscillator Phase Noise and Small-Scale Channel Fading in Higher Frequency Bands
M. Reza Khanzadi, Rajet Krishnan, Dan Kuylenstierna +1
This paper investigates the effect of oscillator phase noise and channel variations due to fading on the performance of communication systems at frequency bands higher than 10GHz.…
On the Impact of Oscillator Phase Noise on the Uplink Performance in a Massive MIMO-OFDM System
Rajet Krishnan, M. Reza Khanzadi, N. Krishnan +4
In this work we study the effect of oscillator phase noise on the uplink performance of a massive multiple-input multiple output system. Specifically, we consider an orthogonal fre…
Soft metrics and their Performance Analysis for Optimal Data Detection in the Presence of Strong Oscillator Phase Noise
Rajet Krishnan, M. Reza Khanzadi, Thomas Eriksson +1
In this paper, we address the classical problem of maximum-likelihood (ML) detection of data in the presence of random phase noise. We consider a system, where the random phase noi…
Calculation of the Performance of Communication Systems from Measured Oscillator Phase Noise
M. Reza Khanzadi, Dan Kuylenstierna, Ashkan Panahi +2
Oscillator phase noise (PN) is one of the major problems that affect the performance of communication systems. In this paper, a direct connection between oscillator measurements, i…