Optimal training design for MIMO OFDM systems in mobile wireless channels

I Barhumi, G Leus, M Moonen - IEEE Transactions on signal …, 2003 - ieeexplore.ieee.org
This paper describes a least squares (LS) channel estimation scheme for multiple-input
multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems based …

MIMO WLAN system

JR Walton, MS Wallace, JW Ketchum… - US Patent …, 2012 - Google Patents
US PATENT DOCUMENTS nals, fast acknowledgment, and quick resource assignments.
Calibration may be performed to account for differences in the frequency responses of …

Single carrier modulation with nonlinear frequency domain equalization: An idea whose time has come—Again

N Benvenuto, R Dinis, D Falconer… - Proceedings of the …, 2009 - ieeexplore.ieee.org
In recent years single carrier modulation (SCM) has again become an interesting and
complementary alternative to multicarrier modulations such as orthogonal frequency division …

Deterministic pilot design and channel estimation for downlink massive MIMO-OTFS systems in presence of the fractional Doppler

D Shi, W Wang, L You, X Song, Y Hong… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Although the combination of the orthogonal time frequency space (OTFS) modulation and
the massive multiple-input multiple-output (MIMO) technology can make communication …

[图书][B] Wireless OFDM systems: How to make them work?

M Engels - 2002 - books.google.com
Orthogonal Frequency Division Multiplexing (OFDM) has become the technology of choice
for broadband communication in a wireless multipath environment. For instance, it will be …

Advanced wireless networks: 4G technologies

S Glisic, JP Makela - 2006 IEEE Ninth International Symposium …, 2006 - ieeexplore.ieee.org
Within the wide range of issues related to 4G wireless networks, due to the scope of the
ISSTA conference, in this presentation we highlight some segments of wireless networks …

Pilots for MIMO communication system

JW Ketchum, MS Wallace, JR Walton… - US Patent …, 2011 - Google Patents
Pilots suitable for use in MIMO systems and capable of supporting various functions are
described. The various types of pilot include—a beacon pilot, a MIMO pilot, a steered …

MIMO system with multiple spatial multiplexing modes

JR Walton, JW Ketchum, MS Wallace… - US Patent …, 2012 - Google Patents
A MIMO system supports multiple spatial multiplexing modes for improved performance and
greater flexibility. These modes may include (1) a single-user steered mode that transmits …

Closed-loop rate control for a multi-channel communication system

JR Walton, MS Wallace, JW Ketchum… - US Patent …, 2012 - Google Patents
Closed-loop rate control for data transmission on multiple parallel channels is provided. An
inner loop estimates the channel conditions for a communication link and selects a suitable …

Mimo wlan system

JR Walton, MS Wallace, JW Ketchum… - US Patent …, 2013 - Google Patents
(57) ABSTRACT A multiple-access MIMO WLAN system that employs MIMO, OFDM, and
TDD. The system (1) uses a channel structure With a number of con? gurable transport …