Results 121 to 130 of about 232,730 (164)

Pollination and self-interference in Nothofagus

Flora - Morphology, Distribution, Functional Ecology of Plants, 2013
Abstract Interference between male and female functions within a monoecious plant may hinder crossing and decrease seed set. We assessed the probability of self-pollination and the effect of self-pollination on cross-pollination for two self-incompatible species: Nothofagus obliqua and N. nervosa .
Cristian Daniel Torres, Javier Guido Puntieri   +1 more
openaire   +1 more source

Filter Design for Self-Interference Cancellation

2020
Mitigation of self-interference is the prime challenge in making full-duplex technology feasible in wireless communications. In this chapter, we first present system model of a wireless communication link including a source, full-duplex transceiver, and destination, and discuss different approaches and assumptions when building the signal model.
openaire   +1 more source

Self-Interference Lloyd's Fiber Interferometer

CLEO:2011 - Laser Applications to Photonic Applications, 2011
We proposed an ultracompact, simple and robust in reflection-type of self-interference Lloyd's fiber interferometer based on a diffused-core fiber endface with Sn-overlay. Interference fringes are observed experimentally and investigated for the first time.
openaire   +1 more source

Maximum Likelihood Self-Interference Cancellation

2017
In this chapter, we propose a maximum likelihood (ML) approach to jointly estimate the self-interference and the intended channels. We perfectly exploit the known transmitted symbols from its own transceiver and both the known pilot and unknown data symbols from the other intended transceiver.
Tho Le-Ngoc, Ahmed Masmoudi
openaire   +1 more source

Novel multiplexing technique for reducing self interference

2004 International Symposium on Electromagnetic Compatibility (IEEE Cat. No.04CH37559), 2004
Today there is an opinion that the OFDMA method is a better and more efficient solution for cellular systems and next generation wireless LAN. The OFDMA technique uses good frequency efficiency and minimal sensitivity to multipath propagation interference.
M. Bank, J. Gavan
openaire   +1 more source

Relay self-interference minimisation for QAM signals

2015 Fourth International Conference on Future Generation Communication Technology (FGCT), 2015
This paper introduces a self-interference (SI) minimisation technique for amplify and forward (AF) relays. Relays are used to help forward signals between a source and a destination. The AF relay amplifies the signal it receives then transmits it to the destination.
Saleh O. Al-Jazzar, Sami Aldalahmeh
openaire   +1 more source

Limiting Factors in Self-Interference Cancellation

2017
Various experimental results have stated that the self-interference (SI) in full-duplex communication can be mitigated to properly detect the intended signal. However, relatively little is known about the cancellation limits of these systems. A good SI-cancellation strategy passes first by a proper understanding of the nature of this SI. This is highly
Tho Le-Ngoc, Ahmed Masmoudi
openaire   +1 more source

Relay self interference minimisation using tapped filter

2013 8th International Workshop on Systems, Signal Processing and their Applications (WoSSPA), 2013
In this paper we introduce a self interference (SI) estimation and minimisation technique for amplify and forward relays. Relays are used to help forward signals between a transmitter and a receiver. This helps increase the signal coverage and reduce the required transmitted signal power.
Saleh O. Al-Jazzar, Tareq Al-Naffouri
openaire   +1 more source

High-resolution spectral self-interference fluorescence microscopy

SPIE Proceedings, 2002
We present a new method of fluorescence imaging, which yields nm-scale axial height determination and ~15 nm axial resolution. The method uses the unique spectral signature of the fluorescent emission intensity well above a reflecting surface to determine vertical position unambiguously.
Anna K. Swan, Lev Moiseev, Yunjie Tong, Samuel Lipoff, William C. Karl, Bennett B. Goldberg, M. Selim Unlu   +6 more
openaire   +1 more source

Smart Self-interference Suppression by Exploiting a Nonlinearity

2013
A 1.8GHz RF amplifier implemented in 0.14um CMOS with frequency-independent blocker suppression is presented. The blocker suppression functionality is obtained by the adaptation of a nonlinear input–output transfer according to the blocker amplitude. Since superposition does not apply to nonlinear transfer functions, the behavior of such a transfer for
Janssen, E.J.G., Habibi, H., Milosevic, D., Baltus, P.G.M., Roermund, van, A.H.M.   +4 more
openaire   +2 more sources