Adaptive traffic scheduling techniques for mixed real-time and streaming applications on reconfigurable hardware

2010 ◽  
Author(s):  
Tobias Ziermann ◽  
Juergen Teich
Keyword(s):  
Real Time ◽  
Reconfigurable Hardware ◽  
Traffic Scheduling ◽  
Streaming Applications

Parallel real-time garbage collection of multiple heaps in reconfigurable hardware

2015 ◽  
Vol 49 (11) ◽  
pp. 117-127 ◽  
Author(s):  
David F. Bacon ◽  
Perry Cheng ◽  
Sunil Shukla
Keyword(s):  
Real Time ◽  
Garbage Collection ◽  
Reconfigurable Hardware

scholarly journals Network Calculus-Based Latency for Time-Triggered Traffic under Flexible Window-Overlapping Scheduling (FWOS) in a Time-Sensitive Network (TSN)

2021 ◽  
Vol 11 (9) ◽  
pp. 3896
Author(s):  
Khaled M. Shalghum ◽  
Nor Kamariah Noordin ◽  
Aduwati Sali ◽  
Fazirulhisyam Hashim
Keyword(s):  
Real Time ◽  
Connected Vehicles ◽  
Network Calculus ◽  
Timing Constraints ◽  
Traffic Scheduling ◽  
Worst Case ◽  
Continuous Increase ◽  
Scheduled Traffic ◽  
Support Time ◽  
New Framework

Deterministic latency is an urgent demand to pursue the continuous increase in intelligence in several real-time applications, such as connected vehicles and automation industries. A time-sensitive network (TSN) is a new framework introduced to serve these applications. Several functions are defined in the TSN standard to support time-triggered (TT) requirements, such as IEEE 802.1Qbv and IEEE 802.1Qbu for traffic scheduling and preemption mechanisms, respectively. However, implementing strict timing constraints to support scheduled traffic can miss the needs of unscheduled real-time flows. Accordingly, more relaxed scheduling algorithms are required. In this paper, we introduce the flexible window-overlapping scheduling (FWOS) algorithm that optimizes the overlapping among TT windows by three different metrics: the priority of overlapping, the position of overlapping, and the overlapping ratio (OR). An analytical model for the worst-case end-to-end delay (WCD) is derived using the network calculus (NC) approach considering the relative relationships between window offsets for consecutive nodes and evaluated under a realistic vehicle use case. While guaranteeing latency deadline for TT traffic, the FWOS algorithm defines the maximum allowable OR that maximizes the bandwidth available for unscheduled transmission. Even under a non-overlapping scenario, less pessimistic latency bounds have been obtained using FWOS than the latest related works.

Open-source RTP Library for End-to-End Encrypted Real-Time Video Streaming Applications

2021 ◽  
Author(s):  
Joni Rasanen ◽  
Aaro Altonen ◽  
Alexandre Mercat ◽  
Jarno Vanne
Keyword(s):  
Open Source ◽  
Real Time ◽  
Video Streaming ◽  
Streaming Applications ◽  
End To End
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