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Proceedings of the 1st international conference on Embedded networked sensor systems
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IEEE/ACM Transactions on Networking (TON)
Z-MAC: a hybrid MAC for wireless sensor networks
Proceedings of the 3rd international conference on Embedded networked sensor systems
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ACM SIGCOMM Computer Communication Review
Analysis of a Hybrid Access Scheme for Buffered Users-Probabilistic Time Division
IEEE Transactions on Software Engineering
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WWIC 2009 Proceedings of the 7th International Conference on Wired/Wireless Internet Communications
An energy-aware wireless sensor MAC protocol for delay-sensitive data transmission
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Proceedings of the 6th ACM workshop on QoS and security for wireless and mobile networks
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Computer Networks: The International Journal of Computer and Telecommunications Networking
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Computer Communications
Mobile Networks and Applications
Energy efficient MAC protocol for delay-sensitive data transmission over wireless sensor network
Wireless Communications & Mobile Computing
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In this letter, we propose PQ-MAC: a priority-based medium access control (MAC) protocol for providing quality of service (QoS) in wireless sensor networks (WSNs) which minimizes the energy consumption with traffic-based sleep-wakeup scheduling and supports QoS using differentiating channel access policy, packet scheduling, and queue management. The PQ-MAC utilizes the advantages of time division multiple access (TDMA) and slotted carrier-sense multiple access (CSMA). The proposed protocol is an energy-efficient, priority-based, and QoS compatible MAC protocol. It consists of multi-level queue management, sleep-wakeup scheduling, and an ordered contention period (CP) scheme. It also guarantees time-bounded delivery of QoS packets. Performance evaluation is conducted between PQ-MAC and S-MAC with respect to three performance metrics: energy consumption, throughput, and average latency. The simulation results show that the performance of PQ-MAC is better than that of S-MAC.