Results 211 to 220 of about 255,866 (259)

Peak-to-average power ratio analysis of LDM signals

2015 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, 2015
Layered Division Multiplexing (LDM) is as a new technical solution for multiplexing different services over the same RF channel. it has already been accepted as a baseline technology for the new generation ATSC 3.0 digital terrestrial television (DTT) standard.
Jon Montalban, Jon Barrueco, Itziar Angulo, Liang Zhang 0001, Yiyan Wu 0001, Wei Li 0037, Heung Mook Kim, Sung Ik Park, Jae-Young Lee 0001   +8 more
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Peak-to-average power ratio in high-order OFDM

IEEE Transactions on Communications, 2001
Summary: The problem of Peak-to-Average Power Ratio (PAPR) of high-order Orthogonal Frequency-Division Modulation (OFDM) is considered. Using results on level crossing of random processes, an upper bound on the probability that the PAPR of an OFDM signal will exceed a given value is derived.
Nati Dinur, Dov Wulich
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On signals with very high peak-to-average power ratio

International Symposium onInformation Theory, 2004. ISIT 2004. Proceedings., 2004
This paper address the problem of classification of BPSK-modulated multicarrier signals with the peak-to-average power ratio (PAPR) exceeding 3/4 of the maximal possible value. By providing a simple characterization of such signals, an upper bound on their number are derived and propose a simple sufficient condition for the signals to have low PAPR ...
Gregory Freiman, Simon Litsyn, Alexander A. Yudin   +2 more
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Peak-to-Average Power Ratio Reduction in MIMO OFDM

2007 IEEE International Conference on Communications, 2007
Peak-to-average power ratio (PAR) reduction in OFDM using antenna arrays (MIMO OFDM) is considered. In particular, generalizations of selected mapping (SLM) recently proposed in literature, are studied, and a new version, we call it directed SLM (dSLM), is introduced.
Robert F. H. Fischer, Martin Hoch
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Peak-to-average power ratio versus instantaneous-to-average power ratio for OFDM

2008 42nd Asilomar Conference on Signals, Systems and Computers, 2008
In the literature, peak-to-average power ratio (PAR) is often used as an indicator for the dynamic range of OFDM signals. PAR is an extreme value statistic and can present an overly pessimistic view of the signal. Instantaneous-to-average power ratio (IAR), on the other hand, reflects more accurately the characteristics of the sample population.
Qijia Liu, Xiaoli Ma, G. Tong Zhou, Jie Wu   +3 more
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Peak to Average Power Ratio sensor for green Cognitive Radio

21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2010
High Peak to Average Power Ratio (PAPR) is a critical issue in multi-standard and multi-carrier communication systems. This problem can result in large performance degradation due to the non-linearity of the High Power Amplifier (HPA) or in low power efficiency.
Palicot, Jacques, Louët, Yves, Mroue, Mohamad   +2 more
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On minimizing the peak-to-average power ratio for the sum of N sinusoids

IEEE Transactions on Communications, 1993
A new derivation is presented of a previously known relationship for phasing N equal-amplitude, equally spaced (in frequency) sinusoids so that the peak-to-average power ratio of their sum is 2.6 dB. The method of derivation provides intuitive insight into why this result is possible, and shows that the 2.6 dB figure is obtained independently of N as ...
Darrell R. Gimlin, Charles R. Patisaul
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On the links between peak to average power ratio for conventional RF power amplifiers and peak to average duration ratio for switching mode power amplifiers

2011 XXXth URSI General Assembly and Scientific Symposium, 2011
For conventional RF power amplifier (PA), the power efficiency depends on the peak to average power ratio (PAPR) of the input signal, or more precisely on the statistical distribution of the input signal amplitude. In this paper we show that, in a similar way, the power efficiency of switching mode PA driven by ΣΔ or PWM signals depends on the ...
Baudoin, Geneviève, Diet, Antoine, Villegas, Martine   +2 more
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Peak-to-average power ratio reduction of FDRM

2005 International Symposium on Intelligent Signal Processing and Communication Systems, 2005
Frequency Domain Reciprocal Modulation (FDRM), originally developed by T. D. Williams [1, 2], is an enhanced method of modulation to complement Orthogonal Frequency Division Multiplexing (OFDM) techniques. FORM was proposed to solve the problem of very fast dynamic multipath distortion in wireless communication environments.
Pingyu, Lin, Stewart, Brian G., McMeekin, Scott   +2 more
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On the peak-to-average power ratio of M-sequences

The 22nd Convention on Electrical and Electronics Engineers in Israel, 2002., 2003
The paper derives an expression for the peak-to-average power ratio (more exactly the peak-to-mean envelope power ratio) of an M-sequence. The derived parameter is of crucial importance if M-sequences are used in multi-carrier communication systems (e.g. OFDM).
I. Alrod, S. Litsyn
openaire   +1 more source