Network-aware, energy-conscious, fair service for real-time applications on multiprocessor SoC
ACM SIGBED Review - Special Issue on the Work-in-Progress (WIP) Session at the 2009 IEEE Real-Time Systems Symposium (RTSS)
Energy-aware packet and task co-scheduling for embedded systems
EMSOFT '10 Proceedings of the tenth ACM international conference on Embedded software
High performance dynamic voltage/frequency scaling algorithm for real-time dynamic load management
Journal of Systems and Software
Static and dynamic job scheduling with communication aware policy in cluster computing
Computers and Electrical Engineering
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Exclusive access to the wireless medium, e.g., as provided by bandwidth-reservation mechanisms, limits contention and therefore is capable of providing effective real-time support to periodic communications. Furthermore, to preserve energy, wireless cards can be powered down between periodic accesses without loss of data. However, packet schedulers must be aware of the limited communication opportunities to ensure that packets are transmitted before their deadlines, CPU schedulers must execute jobs such that the packets generated by these jobs are available for transmission in time, and DVS algorithms must choose processor speeds such that job execution and therefore packet generation are not unduly delayed. This paper proposes a co-scheduling approach to integrate CPU, network, and energy management for wireless real-time systems that rely on bandwidth reservations. Both simulation and experimentation indicate significant improvements in meeting packet deadlines (up to 40%) with only small increases in overall energy consumption (less than 10%) compared to the state of the art.