Results 31 to 40 of about 1,441 (173)
Enhancement of Analytical OBR (Out of Band Radiation) and BER Calculation for Digital Au-dio-Video Broadcasting in Companded OFDM System using Non-Symmetric QAM/QPSK Tecniques [PDF]
, 2017 Companding transforms useful under assumption of infinite bandwidth. Under band limited conditions OBR parameter filters out. So bandwidth is a factor that decides the filter-ing out OBR on the performance of companded OFDM sys-tems.
Arora, P. K. (Prof) +2 more
core +1 more source
Performance Analysis of Hybrid Peak to Average Power Ratio Reduction Techniques in 5G UFMC Systems
IEEE Access, 2019 The universal filtered multi-carrier (UFMC) technique has been proposed as a prominent waveform candidate for fifth generation (5G) communication techniques.
Ali F. Almutairi +2 more
doaj +1 more source
The 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
A new technique for reducing size of a wpt system using two-loop strongly-resonant inductors [PDF]
, 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
Comparison of Companding based PAPR Techniques for OFDM Systems [PDF]
International Journal of Computer Applications, 2013 LTE has utilized the OFDMA for the downlink which provides spectrum flexibility, inherent resistance to Inter symbol Interference (ISI) and many more. However 3GPP LTE systems suffer from a very common problem known as Peak to Average Power ratio. The present paper tried to discuss the companding based techniques for single user OFDMA systems.
R. K. Mehrotra, Eshaan Verma
openaire +1 more source
Journal of Computer Networks and Communications, Volume 2019, Issue 1, 2019., 2019 Orthogonal frequency division multiplexing (OFDM) is the highly spectrally well‐organized method that has the difficulty of excessive peak power to average power ratio (PAPR), which ultimately imposes constraints on the high‐power amplifier. Many practices have been projected to lessen PAPR of the OFDM systems.
Prabal Gupta +5 more
wiley +1 more source
A HYBRID TECHNIQUE FOR PAPR REDUCTION OF OFDM USING DHT PRECODING WITH PIECEWISE LINEAR COMPANDING [PDF]
ICTACT Journal on Communication Technology, 2016 Orthogonal Frequency Division Multiplexing (OFDM) is a fascinating approach for wireless communication applications which require huge amount of data rates.
Thammana Ajay, K. Murali Krishna
doaj
High-Resolution Scalar Quantization with Rényi Entropy Constraint [PDF]
, 2011 We consider optimal scalar quantization with $r$th power distortion and constrained R\'enyi entropy of order $\alpha$. For sources with absolutely continuous distributions the high rate asymptotics of the quantizer distortion has long been known for ...
Kreitmeier, Wolfgang, Linder, Tamas
core +1 more source
Journal of Electrical and Computer Engineering, Volume 2018, Issue 1, 2018., 2018 A data clipping and normalization technique is employed to improve the performance of the overall direct detection optical orthogonal frequency division multiplexing (DCO‐OFDM) system. A detailed analysis of clipping distortion introduced by digital clipping and normalization is provided. The normalization operation amplifies the clipped data signal to
Jiang Wu, Zhongpeng Wang, Jit S. Mandeep
wiley +1 more source
Throughput Scaling Of Convolution For Error-Tolerant Multimedia Applications
, 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