Concept

Smart antenna

Publications associées (153)

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Beamforming of a microphones array

Kévin Marc Jean Decoster

Beamforming is the technique that permits to attenuate or increase the sound coming in a particular direction, it is in other word a way to estimate the power coming from a particular direction. It is therefore also used as direction of arrival estimator ( ...

2015

Reconfigurable Antennas for Beam-Space MIMO Transmission with a Single Radio

Mohsen Yousefbeiki

MIMO techniques allow remarkable improvements in the reliability and/or transmission rate of wireless communication systems. However, there are several major challenges towards the implementation of conventional MIMO concept in terminals with size, cost, a ...

EPFL2015

Electron Cyclotron Emission (ECE) And Correlation ECE Diagnostic On TCV

Laurie Porte, Philippe Marmillod, Matteo Fontana

The electron cyclotron emission (ECE) and correlation ECE diagnostics in TCV have been upgraded during its 2014 shutdown; this paper will provide a brief overview on their updated architecture and capabilities. The ECE system is equipped with two radiomete ...

2015

Enabling Speech Applications using Ad Hoc Microphone Arrays

Mohammadjavad Taghizadeh

Microphone arrays are central players in hands-free speech interface applications. The main duty of a microphone array is capturing distant-talking speech with high quality. A microphone array can acquire the desired speech signals selectively by leading t ...

EPFL2015

Design rules for efficient compact W-BAN antennas

Anja Skrivervik

Antennas are an important element of Wireless Body Area Network equipments, as the quality of the antenna and its coupling to the channel will be a key component of the quality of the overall link. Indeed, the antenna and its interaction with the body of t ...

IEEE2014

Efficient MIMO transmission of PSK signals with a single-radio reconfigurable antenna

Julien Perruisseau-Carrier, Mohsen Yousefbeiki

Crucial developments to the recently introduced signal-space approach for multiplexing multiple data symbols using a single-radio switched antenna are presented. First, we introduce a general framework for expressing the spatial multiplexing relation of th ...

Institute of Electrical and Electronics Engineers2014

Compact UWB antennas for Wireless Body Area Networks (W-BANs)

Anja Skrivervik, Jean-François Zürcher, Jovanche Trajkovikj

A major issue in Wireless Body Area Networks (W-BAN) is the reliability of the transmission in all conditions, thus in all locations and positions of the wearer. One way to achieve this is to design communication systems as independent as possible to the p ...

2014

A tapered CRLH mushroom-like leaky wave antenna with reduced sidelobe level

Julien Perruisseau-Carrier, Juan Sebastian Gomez Diaz

A tapered composite right/left-handed (CRLH) leaky-wave antenna (LWA) with reduced sidelobe level (SLL) is presented. A cosine taper design is achieved by simultaneously modifying the longitudinal period and the slot width of the mushroom CRLH structure. T ...

2014

Integer-forcing Linear Receivers

Michael Christoph Gastpar

Linear receivers are often used to reduce the implementation complexity of multiple-antenna systems. In a traditional linear receiver architecture, the receive antennas are used to separate out the codewords sent by each transmit antenna, which can then be ...

Institute of Electrical and Electronics Engineers2014

Design and Characterization of a Full-Duplex Multiantenna System for WiFi Networks

Vaneet Aggarwal

In this paper, we present an experiment-and simulation-based study to evaluate the use of full duplex (FD) as a potential mode in practical IEEE 802.11 networks. To enable the study, we designed a 20-MHz multiantenna orthogonal frequency-division-multiplex ...

Ieee-Inst Electrical Electronics Engineers Inc2014