Results 111 to 120 of about 15,939 (189)

Compressive Sensing-Based Radar Imaging and Subcarrier Allocation for Joint MIMO OFDM Radar and Communication System. [PDF]

Sensors (Basel), 2021
Hwang S, Seo J, Park J, Kim H, Jeong BJ.
europepmc   +1 more source

Preamble-Based Signal-to-Noise Ratio Estimation for Adaptive Modulation in Space–Time Block Coding-Assisted Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing System

Algorithms
This paper presents algorithms to estimate the signal-to-noise ratio (SNR) in the time domain and frequency domain that employ a modified Constant Amplitude Zero Autocorrelation (CAZAC) synchronization preamble, denoted as CAZAC-TD and CAZAC-FD SNR ...
Shahid Manzoor, Noor Shamsiah Othman, Mohammed W. Muhieldeen   +2 more
doaj   +1 more source

An RIS-Assisted Integrated Deep Learning Framework for MIMO-OFDM-IM

IEEE Access
Multiple-input multiple-output orthogonal frequency division multiplexing with index modulation (MIMO-OFDM-IM) offers a flexible trade-off between error performance and spectral efficiency.
Md Abdul Aziz, Md Habibur Rahman, Mohammad Abrar Shakil Sejan, Rana Tabassum, Hyoung-Kyu Song   +4 more
doaj   +1 more source

Optimal Filter Selection for MIMO F-OFDM Systems in 5G Wireless Communication

Journal of Telecommunications and Information Technology
Strong demand for mobile broadband cellular systems has boosted the popularity of emerging high-speed modulation technologies such as multiple input multiple output (MIMO) and cyclic prefix orthogonal frequency division multiplexing (CP-OFDM).
Fadila Amel Miloudi, Mohammed Sofiane Bendelhoum, Fayssal Menezla , Ridha Ilyas Bendjillali   +3 more
doaj   +1 more source

On the Achievable Capacity of MIMO-OFDM Systems in the CathLab Environment. [PDF]

Sensors (Basel), 2020
Guerreiro J, Dinis R, Campos L.
europepmc   +1 more source

MIMO-OFDM Crystallized Rate Regions

, 2010
In this paper, we introduce the generalization of the con- cept of crystallized rate regions for MIMO-OFDM trans- mission. The extension from the OFDM and MIMO case to MIMO-OFDM scenario of the time-sharing convex hull of achievable rates is discussed and a new definition of the cost function for the rate region game is derived.
Sroka, Pawel, Kliks, Adrian, Debbah, Merouane   +2 more
openaire   +1 more source

Carrier frequency synchronization for WLAN systems based on MIMO-OFDM-IM

EURASIP Journal on Wireless Communications and Networking
Multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) with index modulation (IM) MIMO-OFDM-IM is a modulation technique that has garnered significant interest in recent times owing to its attraction of smooth transition ...
H. Lalitha, Navin Kumar
doaj   +1 more source

Time-Frequency Based Channel Estimation for High-Mobility OFDM Systems–Part I: MIMO Case

EURASIP Journal on Advances in Signal Processing, 2010
Multiple-input multiple-output (MIMO) systems hold the potential to drastically improve the spectral efficiency and link reliability in future wireless communications systems.
Chaparro LuisF, Önen Erol, Akan Aydın   +2 more
doaj  

TRELLIS CODED MAPPING FOR PEAK TO AVERAGE POWER REDUCTION IN SFBC MIMO OFDM SYSTEMS

ICTACT Journal on Communication Technology, 2016
Space frequency block code orthogonal frequency division multiplexing (SFBC-OFDM) systems has inherit drawbacks of high peak-to average power ratio (PAPR) signals, and constellation shaping with trellis is a promising approach for reducing both peak ...
P. N. Kota, A. N. Gaikwad, B. P. Patil
doaj  

Математическая модель MIMO-OFDM сигнала

Интернет-журнал Науковедение, 2014
Using the technology of orthogonal frequency (OFDM) and spatial (MIMO) diversity in modern wireless broadband access communication systems allows to achieve increased information efficiency in the multipath propagation and, consequently, to increase the noise immunity of the subject systems.
openaire   +1 more source