Results 241 to 250 of about 379,902 (266)

Interference alignment in multi-carrier interference networks

2011 IEEE International Symposium on Information Theory Proceedings, 2011
We consider an interference network with multi-carrier transmission over M parallel sub-channels. There are K transmitter-receiver pairs, each transmitter transmits a single data stream with a rank-one precoding matrix, and the receivers are assumed to be linear.
Changxin Shi, Randall A. Berry, Michael L. Honig   +2 more
openaire   +1 more source

Interference alignment in MIMO interference relay channels

2012 IEEE Wireless Communications and Networking Conference (WCNC), 2012
The degrees of freedom (DoF) has been recognized as a powerful metric to characterize the capacity of interference channels in the high signal-to-noise (SNR) region. In this paper, by utilizing linear interference alignment, we investigate the DoF of multiple-input and multiple-output (MIMO) interference relay channels without symbol extensions.
Xiang Chen, S.H. Song, Khaled Ben Letaief   +2 more
openaire   +1 more source

Polarimetrie interference-alignment beamforming

2016 IEEE International Symposium on Antennas and Propagation (APSURSI), 2016
We introduce the concept of Polarimetrie interference-alignment (PIA) beamforming for multiuser MIMO channels. By using vector antennas, we harness the orthogonal polarization components of electromagnetic waves to provide a signal space for the interference-alignment technique proposed by Cadambe and Jafar.
Carlos A. Viteri-Mera, Fernando L. Teixeira   +1 more
openaire   +1 more source

Interference alignment with diversity

Sensor Signal Processing for Defence (SSPD 2010), 2010
This paper studies the diversity benefit of different interference alignment solutions, which are classified into two categories called diversity interference alignment and zero-forcing interference alignment. Although these two types of solutions are not distinguishable in terms of the multiplexing gain, it will be shown their difference lies in the ...
null Haishi Ning, null Cong Ling, K.K. Leung   +2 more
openaire   +1 more source

Interference Alignment for DSL

2012 IEEE Global Communications Conference (GLOBECOM), 2012
Inter-line interference, known as crosstalk, is the most significant source of performance degradation for Digital Subscriber Line (DSL) systems. Vectored DSL is an effective technique for he elimination of crosstalk; however, there are many scenarios in which Vectored DSL is not implementable or practical.
Sean Huberman, Tho Le-Ngoc
openaire   +1 more source

Integer-forcing interference alignment

2013 IEEE International Symposium on Information Theory, 2013
In this paper, we propose a novel framework, integer-forcing interference alignment, that can simultaneously exploit both signal-space and signal-scale alignment. We consider receivers that can decode integer-linear combinations of desired and interfering streams and then solve for their desired symbols.
Vasilis Ntranos, Viveck R. Cadambe, Bobak Nazer, Giuseppe Caire   +3 more
openaire   +1 more source

The interference fringe aligner

Journal of Vacuum Science & Technology B: Microelectronics Processing and Phenomena, 1988
The interference fringe aligner uses interference fringes formed by two crossed laser beams to align each exposure field in a step and repeat camera. The alignment mark is a diffraction grating with a period equal to a multiple of the laser fringe period.
D. L. White, M. Feldman, T. E. Saunders, P. Gunter   +3 more
openaire   +1 more source

Quantum Interference in Aligned Molecules

2007
High-order harmonic generation (HHG) in aligned molecules is an important area in strong field ultrafast physics [1]-[3]. It has been shown that the dependence of HHG on the molecular structure can give new insights into measuring molecular structure on a subfemtosecond timescale [3].
C Vozzi, E Benedetti, F Calegari, JP Caumes, G Sansone, S Stagira, M Nisoli, R Torres, E Heesel, N Kajumba, J Marangos, C Altucci, R Velotta   +12 more
openaire   +4 more sources

Ergodic interference alignment for the SIMO/MIMO interference channel

2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014
Ergodic interference alignment (IA) is a simple yet powerful tool that not only achieves the optimal K/2 degrees of freedom (DoF) of the K-user single-input single-output (SISO) interference channel (IC), but also allows each user to achieve at least half of its interference-free capacity at any SNR.
Lejosne, Yohan, Slock, Dirk, Yuan-Wu, Yi
openaire   +2 more sources

Synthesis and alignment of liquid crystalline elastomers

Nature Reviews Materials, 2021
Katie M Herbert, Hayden E Fowler, Joselle M Mccracken   +2 more
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