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SIGCOMM '97 Proceedings of the ACM SIGCOMM '97 conference on Applications, technologies, architectures, and protocols for computer communication
Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment
Journal of the ACM (JACM)
The IEEE 802.11 Handbook: A Designer's Companion
The IEEE 802.11 Handbook: A Designer's Companion
On task schedulability in real-time control systems
RTSS '96 Proceedings of the 17th IEEE Real-Time Systems Symposium
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RTSS '97 Proceedings of the 18th IEEE Real-Time Systems Symposium
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RTSS '98 Proceedings of the IEEE Real-Time Systems Symposium
Evaluation of Quality of Service Schemes for IEEE 802.11 Wireless LANs
LCN '01 Proceedings of the 26th Annual IEEE Conference on Local Computer Networks
ICDCS '01 Proceedings of the The 21st International Conference on Distributed Computing Systems
On Supporting Power-Efficient Streaming Applications in Wireless Environments
IEEE Transactions on Mobile Computing
Cross-layer power management in wireless networks and consequences on system-level architecture
Signal Processing - Special section: Advances in signal processing-assisted cross-layer designs
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Computer Networks: The International Journal of Computer and Telecommunications Networking
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Energy constraint has become an important factor in thedesign of MAC protocols. This paper addresses the issueof providing deterministic timing guarantees in the wirelessLAN while minimizing energy consumption of the wirelessnodes. We present a centralized energy efficient algorithm,Scheduled Contention Free Burst (S-CFB), which is builtupon the recently proposed Hybrid Coordination Function(HCF) in the IEEE 802.11 standard. Two mechanisms areproposed: 1) bundling message transmissions into multiplecontention free bursts in order to reduce control overhead;2) allowing wireless nodes to sleep by avoiding preemptionwhenever possible. Our performance study shows that S-CFBmeets the timing requirement for real-time messages,allows wireless nodes to switch to idle state for a longerperiod of time, and reduces the number of control framesrequired to maintain contention free transmission.