Results 181 to 190 of about 60,608 (216)

A cost-effective load side management solution based on power line carrier communication i-PLCC. [PDF]

PLoS One
Ashraf M, Khan AR, Zaidi SSH, Gulraiz A, Khan BM.   +4 more
europepmc   +1 more source

Multi-Pilot Channel Estimation for Orthogonal Time-Frequency Space Systems Based on Constant-Amplitude Zero-Autocorrelation Sequences. [PDF]

Sensors (Basel)
Ju R, Guo Y, Hou X, He J, Li T, Lan Z, Chou X.   +6 more
europepmc   +1 more source

Image Super Resolution-Based Channel Estimation for Orthogonal Chirp Division Multiplexing on Shallow Water Underwater Acoustic Communications. [PDF]

Sensors (Basel)
Liu H, He C, Yu Y, Bai Y, Han Y.
europepmc   +1 more source

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Implementation of OFDM and Pulsed-OFDM

2016 International Conference on Information Technology (ICIT), 2016
This work undertaken, aims to develop pulsed-OFD transmission system, which is used in wide area of wireless communications. It is noteworthy to mention that the system is baseband transmission by excluding the RF (radio frequency) part. Pulsed-OFDM enhances the OFDM that endeavors prominent performance parameters with lesser complexity in ...
Telajala Venkata Mahendra, Ch. V. Rama Rao, Kambam Bijen Singh, Sheikh Wasmir Hussain   +3 more
openaire   +2 more sources

Coexistence of UF-OFDM and CP-OFDM

2016 IEEE 83rd Vehicular Technology Conference (VTC Spring), 2016
Universal Filtered Orthogonal Frequency Division Multiplexing (UF-OFDM) is considered as a promising 5G waveform candidate. It requires a relatively simple transceiver structure, while achieving much better spectral properties compared to CP-OFDM. During the early deployment of 5G systems, many frequency bands will still be occupied by 4G systems ...
Ahmed, Rana, Wild, Thorsten, Schaich, Frank   +2 more
openaire   +2 more sources

Gbit/s Radios @ 60GHz: To OFDM or Not to OFDM?

2008 IEEE 10th International Symposium on Spread Spectrum Techniques and Applications, 2008
The discussion on what is the most appropriate air interface for multiple Gbit/s radios @ 60GHz concentrates around the question: to OFDM or not to OFDM? This paper brings the arguments for two candidate modulation techniques, both exploiting frequency domain processing, focusing on the trade-off between performance and implementation cost and power ...
Liesbet Van der Perre, Wim Van Thillo, Andre Bourdoux, Piet Wambacq, Jimmy Nsenga   +4 more
openaire   +2 more sources

A OFDM module for a MB-OFDM receiver

2007 International Conference on Design & Technology of Integrated Systems in Nanoscale Era, 2007
The rules defined by FFC, for marketing and operation of UWB products, permitted the use of orthogonal frequency division multiplexing (OFDM) to implement UWB communications. MB-OFDM is taking place as good approach to UWB, for instance for wireless USB.
N. Rodrigues, Horácio C. Neto, Helena Sarmento   +2 more
openaire   +2 more sources

Comparison of ACO-OFDM, DCO-OFDM and ADO-OFDM in IM/DD Systems

Journal of Lightwave Technology, 2013
In this paper, three forms of orthogonal frequency division multiplexing (OFDM) designed for intensity modulated/direct detection (IM/DD) optical systems are compared. These are asymmetrically clipped optical OFDM (ACO-OFDM), DC biased optical OFDM (DCO-OFDM) and asymmetrically clipped DC biased optical OFDM (ADO-OFDM). ADO-OFDM is a new technique that
Jean Armstrong, Sarangi D. Dissanayake
openaire   +4 more sources

On the DWT- and WPT-OFDM versus FFT-OFDM

Exhibition, 2009
We demonstrate simulation approaches for wavelet based OFDM, particularly in DWT and WPT-OFDM as alternative substitutions for Fourier based OFDM. We begin by constructing the models of the inverse and forward transforms, which can be flexible for substitutions in an OFDM system. We explain in detail each model and study the BER performance.
Khaizuran Abdullah, Zahir M. Hussain, Amin Z. Sadik   +2 more
openaire   +2 more sources

P-OFDM: Spectrally Efficient Unipolar OFDM

Optical Fiber Communication Conference, 2014
A novel OFDM signal format, polar-OFDM (P-OFDM), is proposed. P-OFDM offers twice as much spectral efficiency as state-of-the-art real-value unipolar OFDM formats. Inherently, the high PAPR is reduced and the numerical evaluation of the BER performance under dynamic-range constraint of optical sources demonstrates superior results.
Hany Elgala, Thomas D. C. Little
openaire   +2 more sources