Wireless Sensor-Actuator Networks Utilization Based Schedulability Analysis
Explore the utilization-based schedulability analysis for wireless sensor-actuator networks, addressing challenges such as transmission conflicts and multi-hop network mapping. Join us at the poster session for further insights.
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Presentation Transcript
Work-in-Progress: Utilization Based Schedulability Analysis for Wireless Sensor- Actuator Networks Dali Ismail, Mahbubur Rahman, Venkata P Modekurthy, Abusayeed Saifullah Department of Computer Science Wayne State University RTAS 2017 1 SICS Networked Embedded Systems Group SicsthSense
Motivation Existing sufficient tests are based on end-to-end delay bound. These algorithms run in pseudo-polynomial time. T1=12, D1=8 & R1= 6 T2=12, D2=12 & R2= 6 Schedulable 2 2 SICS Networked Embedded Systems Group SicsthSense
Challenges Can we adopt a utilization based approach for schedulability? Challenges (difference from CPU scheduling) Simultaneous transmissions on different channels Transmission conflict 3 3 SICS Networked Embedded Systems Group SicsthSense
Utilization Based Analysis for multi-hop network Mapping 1 TDMA Time slot unit Channel Delay due to transmission conflict can be treated as blocking in non- preemptive scheudling 1 Time Processor 4 4 SICS Networked Embedded Systems Group SicsthSense
Utilization Based Analysis for multi-hop network For a control loop experiencing a blocking of ?, utilization is defined as ?? ?? ?. ??= Sufficient condition for schedulability on ? channels under EDF as ?? ? ? 1 ??? ??1 ? ? 5 5 SICS Networked Embedded Systems Group SicsthSense
Thank You! For further information, come meet us at the poster. 6 6 SICS Networked Embedded Systems Group SicsthSense
