RF impairments in wireless transceivers: Phase noise, CFO, and IQ imbalance–A survey

A Mohammadian, C Tellambura - IEEE access, 2021 - ieeexplore.ieee.org
Wireless transceivers for mass-market applications must be cost effective. We may achieve
this goal by deploying non-ideal low-cost radio frequency (RF) analog components …

System and methods to compensate for Doppler effects in multi-user (MU) multiple antenna systems (MAS)

A Forenza, SG Perlman - US Patent 9,312,929, 2016 - Google Patents
H04B7/0615—Diversity systems; Multi-antenna system, ie transmission or reception using
multiple antennas using two or more spaced independent antennas at the transmitting …

System and method for DIDO precoding interpolation in multicarrier systems

A Forenza, SG Perlman - US Patent 8,571,086, 2013 - Google Patents
a single WiFi base station (eg, utilizing 2.4 GHz 802.11 b, g or n protocols) attached to a
broadband wired Internet connection in an area where there are no other WiFi access points …

System and methods for planned evolution and obsolescence of multiuser spectrum

SG Perlman, A Forenza - US Patent 10,425,134, 2019 - Google Patents
A system and method are described which enable planned evolution and obsolescence of
multiuser wireless spectrum. One embodiment of such a system includes one or multiple …

System and method for distributed input distributed output wireless communications

A Forenza, RW Heath Jr, SG Perlman… - US Patent …, 2009 - Google Patents
(57) ABSTRACT A system and method are described for compensating for frequency and
phase offsets in a multiple antenna system (MAS) With multi-user (MU) transmissions (“MU …

System and method for distributed input distributed output wireless communications

A Forenza, RW Heath Jr, SG Perlman… - US Patent …, 2013 - Google Patents
(57) ABSTRACT A system for compensating for in-phase and quadrature (I/Q) imbalances
for multiple antenna systems (MAS) with multi user (MU) transmissions (de? ned with the …

System and method for adjusting DIDO interference cancellation based on signal strength measurements

A Forenza, SG Perlman - US Patent 8,170,081, 2012 - Google Patents
QEVHRUUCFGRFIF-MDEJGZGSSA-N reserpine Chemical compound O ([C@ H] 1 [C@@
H]([C@ H]([C@ H] 2C [C@@ H] 3C4= C (C5= CC= C (OC) C= C5N4) CCN3C [C@ H] 2C1) …

System and method for distributed antenna wireless communications

A Forenza, SG Perlman - US Patent 8,654,815, 2014 - Google Patents
H04B7/0615—Diversity systems; Multi-antenna system, ie transmission or reception using
multiple antennas using two or more spaced independent antennas at the transmitting …

System and method for power control and antenna grouping in a distributed-input-distributed-output (DIDO) network

A Forenza, SG Perlman - US Patent 10,187,133, 2019 - Google Patents
H04B7/0615—Diversity systems; Multi-antenna system, ie transmission or reception using
multiple antennas using two or more spaced independent antennas at the transmitting …

Systems and methods to coordinate transmissions in distributed wireless systems via user clustering

A Forenza, E Lindskog, SG Perlman - US Patent 8,542,763, 2013 - Google Patents
Systems and methods are described for coordinating trans missions in distributed wireless
systems via user clustering. For example, a method according to one embodiment of the …