Results 51 to 60 of about 136,074 (335)
Review on PAR Reduction Techniques for MIMO-OFDM [PDF]
, 2014 Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier communication scheme Plays a prominent role in wireless communication technology as multicarrier transmission scheme.
, Hardik Patel, Mr. S. M. Patel
core +2 more sources
International Journal of Satellite Communications and Networking, EarlyView., 2023 The performance limitation in multiple‐input multiple‐output (MIMO) feeder links due to time and phase misalignment of the ground stations is investigated. Time and phase distribution over optical fiber is considered as an approach to achieve the synchronization requirements.
Eriserdi Mollaymeri +2 more
wiley +1 more source
, 2017 Visible light communication (VLC) is a promising solution to the increasing demands for wireless connectivity. Gallium nitride micro-sized light emitting diodes (micro-LEDs) are strong candidates for VLC due to their high bandwidths.
M. S. Islim +13 more
semanticscholar +1 more source
SmartMat, Volume 4, Issue 1, February 2023., 2023 Recent advances in tellurium‐based nanomaterials (Te NMs) for electrocatalytic applications have been summarized in this review. The design principles and modification strategies of Te NMs in structural engineering and catalytically active center design, such as chemical/physical/multiplex templating strategies, heteroatom doping, vacancy/defect ...
Tiantian Li +8 more
wiley +1 more source
PAPR Reduction in OFDM System by using Nonlinear Companding Technique [PDF]
, 2014 Non linear companding technique is proposed to reduce the high peak to average power ratio (PAPR) of orthogonal frequency division multiplexing system.
, Ms. Pallavi Dhok, Ms. Manisha D. Raut
core +2 more sources
Orthogonal Frequency Division Multiplexing With Joint Subblocks Index Modulation
IEEE Access, 2019 Recently, orthogonal frequency division multiplexing (OFDM) with index modulation has emerged as promising technologies with the improvement of spectral efficiency and energy efficiency, which carries additional index bits through the index domain.
Yuxin Shi +4 more
doaj +1 more source
Peak-to-average power reduction in space division multiplexing based OFDM systems through spatial shifting [PDF]
, 2005 A new method to reduce the peak-to-average power ratio (PAPR) in space division multiplexing systems applying orthogonal frequency division multiplexing is proposed. The method applies spatial shifting to partial transmit sequences to achieve a decreased
Fledderus, E. +2 more
core +2 more sources
Mitigating RF jamming attacks at the physical layer with machine learning
IET Communications, Volume 17, Issue 1, Page 12-28, January 2023., 2023 Abstract Wireless communication devices must be protected from malicious threats, including active jamming attacks, due to the widespread use of wireless systems throughout our every‐day lives. Jamming mitigation techniques are predominately evaluated through simulation or with hardware for very specific jamming conditions.
Marko Jacovic +3 more
wiley +1 more source
IET Communications, Volume 17, Issue 1, Page 63-72, January 2023., 2023 Abstract This work studies the equalization methods for the reduced zero‐padding version of the orthogonal time frequency space modulation. Here, the focus is on applications in low data rate scenarios such as the Internet of Things, and the case where the number of subcarriers and time slots are small will be considered.
Yuan Zhang, Peng Du
wiley +1 more source
, 2007 In this contribution, a nonlinear hybrid detection scheme based on a novel soft-information assisted Genetic Algorithm (GA) is proposed for a Turbo Convolutional (TC) coded Space Division Multiplexing (SDM) aided Orthogonal Frequency Division ...
Akhtman, Jos, Hanzo, Lajos, Jiang, Ming
core +1 more source