Results 111 to 120 of about 23,872 (186)

Outcomes of the SpineJack Implant System for Cancer Patients With Pathological Fractures. [PDF]

Pain Pract
Abd-Elsayed A, Gilligan C.
europepmc   +1 more source

Objective Data From Patients With Persistent Spinal Pain Syndrome Type II Implanted With Spinal Cord Stimulator. [PDF]

Pain Pract
Abd-Elsayed A, Gilligan C.
europepmc   +1 more source

Powered Air Purifying Respirators (PAPRs) for Protection from Respirable Dust in Underground Mines. [PDF]

Min Metall Explor
Sanchez Gonzalez L, Ranjan Kumar A, Arnold B.   +2 more
europepmc   +1 more source

Achieving Enhanced Spectral Efficiency for Constant Envelope Transmission in CP-OFDMA Framework. [PDF]

Sensors (Basel)
Zhu Z, Zhu Y, Xu X, Wang W, Chai L, Zheng Y.   +5 more
europepmc   +1 more source

PAPR reduction in OFDM systems

, 2008
In the last years wireless communications have experienced a fast growth due to the high mobility that they allow. However, wireless channels have some disadvantages, like multipath fading, that make them difficult to deal with. A modulation that efficiently deals with selective fading channels is OFDM. The advancements in digital signal
openaire   +1 more source

A fully integrated harmonic injection and envelope-tracking architecture to extend the linearity of RF power amplifiers under high PAPR. [PDF]

Sci Rep
Ziraksaz F, Hassanzadeh A.
europepmc   +1 more source

The Real-Time Estimation of Respiratory Flow and Mask Leakage in a PAPR Using a Single Differential-Pressure Sensor and Microcontroller-Based Smartphone Interface in the Development of a Public-Oriented Powered Air-Purifying Respirator as an Alternative to Lockdown Measures. [PDF]

Sensors (Basel)
Fujii Y.
europepmc   +1 more source

Low-PAPR ASE-DMT Using Constellation Extension for Optical Wireless Communications. [PDF]

Sensors (Basel)
Wu Y, Li Y, Li B.
europepmc   +1 more source

Increasing the power efficiency of an IEEE802.11a power amplifier [PDF]

, 2005
Beach, MA, Chen, K, Morris, KA
core  

End-to-End DAE-LDPC-OFDM Transceiver with Learned Belief Propagation Decoder for Robust and Power-Efficient Wireless Communication. [PDF]

Sensors (Basel)
Mohammed M, Çevik M.
europepmc   +1 more source