Results 31 to 40 of about 1,153 (147)

A new technique for reducing size of a wpt system using two-loop strongly-resonant inductors [PDF]

open access: yes, 2017
Mid-range resonant coupling-based high efficient wireless power transfer (WPT) techniques have gained substantial research interest due to the number of potential applications in many industries.
Adebisi, Bamidele   +6 more
core   +3 more sources

Two-Stage Companding Scheme to Reduce Peak-to-Average Power Ratio for Safety Transportation Scenarios

open access: yesIEEE Access, 2019
Reliable wireless data transmission in intelligent transportation systems (ITS) has drawn a wide concern in recent years. As an efficient wireless transmission technology, multi-carrier communication (MCM) finds its way in many applications. However, the
Jun Hou   +5 more
doaj   +1 more source

Distributed Functional Scalar Quantization Simplified [PDF]

open access: yes, 2012
Distributed functional scalar quantization (DFSQ) theory provides optimality conditions and predicts performance of data acquisition systems in which a computation on acquired data is desired.
Goyal, Vivek K   +2 more
core   +3 more sources

Analysis of Improved µ-Law Companding Technique for OFDM Systems [PDF]

open access: yes, 2017
YesHigh Peak-to-Average-Power Ratio (PAPR) of transmitted signals is a common problem in broadband telecommunication systems using an orthogonal frequency division multiplexing (OFDM) modulation scheme, as it increases transmitter power consumption.
Abd-Alhameed, Raed A.   +4 more
core   +1 more source

CRLB for joint estimation of TDOA, phase, FDOA, and Doppler rate

open access: yesThe Journal of Engineering, Volume 2019, Issue 21, Page 7628-7631, November 2019., 2019
To avoid decline of FDOA estimation precision caused by relative Doppler companding, Doppler rate has to be considered and estimated jointly with TDOA, phase, and FDOA. However, CRLB of the joint estimation is still unclear. This study addresses on derivation of the CRLB. First, the joint estimation model is constructed.
Dexiu Hu   +4 more
wiley   +1 more source

Companding transform technique combined with iterative filtering for reducing PAPR of OFDM signals

open access: yesTongxin xuebao, 2015
Considering the drawbacks of the traditional companding transforms,an efficient companding scheme combined with iterative filtering was proposed to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals.
Chao YANG, Yong WANG, Jian-hua GE
doaj   +2 more sources

A New Approach to Peak Threshold Estimation for Impulsive Noise Reduction Over Power Line Fading Channels [PDF]

open access: yes, 2018
Impulsive noise (IN) is a major component that degrades signal integrity in power line communication (PLC) systems. PLC systems driven by orthogonal frequency-division multiplexing (OFDM) have Rayleigh distributed amplitudes.
Adebisi, Bamidele   +5 more
core   +2 more sources

PAPR reduction in OFDM using scaled particle swarm optimisation based partial transmit sequence technique

open access: yesThe Journal of Engineering, Volume 2019, Issue 5, Page 3460-3468, May 2019., 2019
Partial transmit sequence (PTS) is one of the effective techniques for reducing the peak‐to‐average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. PTS technique has some issues such as higher computational complexity due to its exhaustive searching of optimal phase factors.
Sanjana Prasad, Ramesh Jayabalan
wiley   +1 more source

Throughput Scaling Of Convolution For Error-Tolerant Multimedia Applications

open access: yes, 2012
Convolution and cross-correlation are the basis of filtering and pattern or template matching in multimedia signal processing. We propose two throughput scaling options for any one-dimensional convolution kernel in programmable processors by adjusting ...
Anam, Mohammad Ashraful   +1 more
core   +1 more source

On the efficiency of PAPR reduction schemes deployed for DRM systems [PDF]

open access: yes, 2016
Digital Radio Mondiale (DRM) is the universally, openly standardized digital broadcasting system for all frequencies including LW, MW, and SW as well as VHF bands.
Fuhrwerk, Martin   +4 more
core   +1 more source

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