Results 31 to 40 of about 1,168,884 (326)
Predistortion performance considering Peak to Average Power ratio reduction in OFDM context [PDF]
, 2012 International audienceSome recent communication systems like DVB-T2 standard set up a PAPR reduction technique followed by a linearization's one. So in such a scenario, the performance of the linearization is influenced undoubtedly by the PAPR reduction ...
Gouba, O. Abel, Louët, Yves
core +4 more sources
Peak-to-average power ratio reduction in OFDM systems using smoothing technique [PDF]
, 2009 This paper presents a new peak-to-average power ratio (PAPR) reduction technique by smoothing the power components of OFDM signals. The smoothing technique only adds a simple process to the existing OFDM signal processing.
Al-Azzo, Wisam F. +4 more
core +1 more source
Peak to Average Power Ratio Reduction in OFDM Using Pulse Shaping Technique [PDF]
, 2016 Orthogonal Frequency Division Multiplexing (OFDM) is a special type of multicarrier modulation in which a signal is split into several narrowband channels at different frequencies.
Das, Diptadeep
core +4 more sources
IEEE Access, 2019 Multi-carrier-based waveform design for directional modulation (DM) is studied, where simultaneous data transmission over multiple frequencies can be achieved, with given phase distribution at the main lobe and as random as possible over sidelobe regions
Bo Zhang, Wei Liu, Qiang Li
doaj +1 more source
The Noncoherent Rician Fading Channel -- Part II : Spectral Efficiency in the Low-Power Regime [PDF]
, 2005 Transmission of information over a discrete-time memoryless Rician fading channel is considered where neither the receiver nor the transmitter knows the fading coefficients.
Gursoy, Mustafa Cenk +2 more
core +2 more sources
A peak-to-average power ratio reduction method for mixed-numerology multi-carrier systems
Dianxin kexue, 2023 In order to support diverse service demands of communication scenarios, 5G adopts the mixed-numerology system based on orthogonal frequency division multiplexing (OFDM).The mixed-numerology systems still have the problem of high peak-to-average power ...
Nan SHI +4 more
doaj +2 more sources
IEEE 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
Ultrashort Q-switched pulses from a passively mode-locked distributed Bragg reflector semiconductor laser [PDF]
, 2012 A compact semiconductor mode-locked laser (MLL) is presented that demonstrates strong passive Q-switched mode-locking over a wide range of drive conditions.
Cheung +12 more
core +1 more source
A Two-Dimensional Signal Space for Intensity-Modulated Channels [PDF]
, 2012 A two-dimensional signal space for intensity- modulated channels is presented. Modulation formats using this signal space are designed to maximize the minimum distance between signal points while satisfying average and peak power constraints. The uncoded,
Agrell, Erik +3 more
core +2 more sources
Partial Transmit Sequences for Peak-to-Average Power Ratio Reduction in Multiantenna OFDM
EURASIP Journal on Wireless Communications and Networking, 2007 The major drawback of orthogonal frequency-division multiplexing (OFDM) is its high peak-to-average power ratio (PAR), which gets even more substantial if a transmitter with multiple antennas is considered.
Christian Siegl, Robert F. H. Fischer
doaj +1 more source