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Sub-sampled Cubic Regularization for Non-convex Optimization
(2017)Proceedings of Machine Learning Research ~ Proceedings of the 34th International Conference on Machine Learning (ICML 2017)Conference Paper -
Subset-Codebook Precoding for 1-bit Massive Multiuser MIMO
(2017)2017 51st Annual Conference on Information Sciences and Systems (CISS)We consider a massive multiuser MIMO downlink scenario with 1-bit digital-to-analog converters. QPSK information symbols are transmitted to the users by a channel-dependent mapping of the symbols to 1-bit DAC signals that are transmitted from each base station (BS) antenna. The mapping is selected to emulate the desired information bearing QPSK symbols at the users. Non-linear precoding is considered, where the mapping from the information ...Conference Paper -
VLSI Design of a Nonparametric Equalizer for Massive MU-MIMO
(2017)2017 51st Asilomar Conference on Signals, Systems, and ComputersLinear minimum mean-square error (L-MMSE) equalization is among the most popular methods for data detection in massive multi-user multiple-input multiple-output (MU-MIMO) wireless systems. While L-MMSE equalization enables near-optimal spectral efficiency, accurate knowledge of the signal and noise powers is necessary. Furthermore, corresponding VLSI designs must solve linear systems of equations, which requires high arithmetic precision, ...Conference Paper -
Autonomous robotic stone stacking with online next best object target pose planning
(2017)Proceedings of the 2017 IEEE International Conference on Robotics and Automation (ICRA)Conference Paper -
Research partnerships, user participation, extended outreach – some of ETH Library's steps beyond digitisation
(2017)HAL ArchiveFor many libraries, mass digitisation has become routine. Digitisation centres are available in many places and there is a wealth of online platforms for the presentation of a wide variety of different media. Current projects from ETH Library reveal the directions in which the enormous potential harboured in these platforms and the millions of digital copies already produced may evolve. Research partnerships play just as important a role ...Conference Paper -
On the Achievable Rates of Decentralized Equalization in Massive MU-MIMO Systems
(2017)2017 IEEE International Symposium on Information Theory (ISIT)Massive multi-user (MU) multiple-input multiple-output (MIMO) promises significant gains in spectral efficiency compared to traditional, small-scale MIMO technology. Linear equalization algorithms, such as zero forcing (ZF) or minimum mean-square error (MMSE)-based methods, typically rely on centralized processing at the base station (BS), which results in (i) excessively high interconnect and chip input/output data rates, and (ii) high ...Conference Paper -
ADMM-based Infinity Norm Detection for Large MU-MIMO: Algorithm and VLSI Architecture
(2017)2017 IEEE International Symposium on Circuits and Systems (ISCAS)We propose a novel data detection algorithm and a corresponding VLSI design for large multi-user (MU) multiple-input multiple-output (MIMO) wireless receiver. Our algorithm, referred to as ADMIN, performs alternating direction method of multipliers (ADMM)-based infinity norm constrained equalization. ADMIN is an iterative algorithm that outperforms linear detectors if the number of users is small compared to that of the antennas in base ...Conference Paper -
Trading strategy for decentralized energy resources in sequential electricity markets: A Swiss case study
(2017)2017 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia)Conference Paper -
Preliminary estimates of the viability of UAV-based bridge
(2017)Proceedings of SMAR 2017 ConferenceUnmanned aerial vehicles (UAVs) are gaining popularity as sensor platforms for different inspection purposes. Additionally, due to the developments in flight control systems, the effort of learning how to control a UAV is steadily decreasing. This opens up a number of possibilities on how these UAVs can assist in the inspection of civil engineering infrastructure. Furthermore, intelligent flight control algorithms allow for autonomous ...Conference Paper -
The operational difficulty of standardizing frequency restoration products
(2017)2017 14th International Conference on the European Energy Market (EEM)Conference Paper