Journal ArticleDOI
Feedback Control Applications in New Radio: Exploring Delay Control and Alignment
Richard H. Middleton,Torbjon Wigren,Lisa Boström,Ramon A. Delgado,Katrina Lau,Robert Karlsson,Linda Brus,Eddie Corbett +7 more
TLDR
The scope of this article is to discuss and motivate recognition of the need for delay alignment in general.Abstract:
In a new radio (NR) communication system, low latency and limited jitter are critical to support new use cases exploiting haptic feedback and other closed-loop feedback control applications. Therefore, mechanisms for delay control and delay alignment are important. The simplest approaches to mitigating delay jitter, using buffering techniques, come at the price of memory and increased delay. More recently, techniques using feedback of delays experienced have shown great promise for improved performance with low overhead. The scope of this article is to discuss and motivate recognition of the need for delay alignment in general.read more
Citations
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Journal ArticleDOI
Tracking Performance Guarantees in the Presence of Quantization for Uncertain Nonlinear Systems
TL;DR: In a networked control system (NCS) environment, where all closed-loop signals (control and state) are quantized, the problem of establishing prescribed, transient, and steady-state, performance guarantees on the output tracking error is considered.
Journal ArticleDOI
A user perspective on errors-in-variables methods in system identification
TL;DR: From a user’s perspective on how to proceed when practical problems are handled, a brief survey of errors-in-variables methods in system identification and underlying assumptions and principles for each approach are highlighted.
Journal ArticleDOI
Globally Stable Delay Alignment for Feedback Control Over Wireless Multipoint Connections
TL;DR: This article argues why additional delay control and alignment are needed, to meet the well-established feedback control requirements on low end-to-end loop delay and jitter, and proposes a novel re-engineered delay aligning data flow controller with new static decoupling matrix.
Proceedings ArticleDOI
Jitter Suppression for Very Low Latency Feedback Control Over NR
TL;DR: Simulations show that the use of 3-4 independent and redundant data paths allows a 1 milli-second high reliability requirement to be met, at an error rate of 10-5, with a delay back-off of 25-30%, as compared to more than 400% without redundancy processing.
Journal ArticleDOI
Recursively Filtered MIMO Transmission With Quadratic Complexity
TL;DR: A dual application of the matrix inversion lemma transforms the beam weight computation into a formulation that has quadratic instead of cubic complexity in the number of antenna elements of the base station.
References
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Book
Communication Networks An Optimization Control And Stochastic Networks Perspective
R. Srikant,Lei Ying +1 more
TL;DR: Taking a top-down approach to network protocol design, the authors begin with the deterministic model and progress to more sophisticated models, illustrating the practical engineering applications of each topic.
Journal ArticleDOI
Delay reduction techniques for playout buffering
TL;DR: The Concord algorithm is presented, which provides a delay-sensitive solution for playout buffering and the use of aging techniques are explored to improve the effectiveness of the historical information and hence, the delay predictions.
Journal ArticleDOI
Integration of a Wireless I/O Interface for PROFIBUS and PROFINET for Factory Automation
TL;DR: In this paper, the authors discuss how the WISA concept can be efficiently integrated into wired field networks for factory automation-both state-of-the-art [process fieldbus decentral peripherals (PROFIBUS DP)] and new [PROFINET IO] networks.
Proceedings ArticleDOI
Ultra-reliable and low-latency communication for wireless factory automation: From LTE to 5G
TL;DR: This paper presents comprehensive system level simulation results to evaluate the performance of LTE and new 5G radio-interface design concepts in a realistic factory deployment scenario and brings valuable insights to show the potential of 3GPP technologies for different factory use-cases.