Time bounded medium access control for ad hoc networks
Proceedings of the second ACM international workshop on Principles of mobile computing
Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Ad Hoc Networks: A Protocol for Supporting QoS Applications
IPDPS '03 Proceedings of the 17th International Symposium on Parallel and Distributed Processing
Research challenges for wireless sensor networks
ACM SIGBED Review - Special issue on embedded sensor networks and wireless computing
Dual-mode real-time MAC protocol for wireless sensor networks: a validation/simulation approach
InterSense '06 Proceedings of the first international conference on Integrated internet ad hoc and sensor networks
A wireless sensor networks MAC protocol for real-time applications
Personal and Ubiquitous Computing - Special Issue: Selected Papers of the ARCS06 Conference
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The usage of sensors is emerging in the nowadays scenario where safety related applications are more and more used. These applications have timing constraints that need to be met by the control system. Thus, guaranteeing timeliness properties is considered a key challenge for research on wireless sensor networks. Among the different components that need to address this problem, we focus on the communication sub-system and, in particular, on the MAC protocols that handles transmissions. To provide timeliness behavior, the employed MAC protocol has to provide a time-bounded service. The contribution of this paper is to investigate the performance of two wireless MAC protocols that can be employed in wireless sensor networks: IEEE 802.11e and WRT-Ring. The former is part of the well know IEEE 802.11 standard, whereas the latter has characteristics that well fit the requirements of wireless sensor networks. Results show that two protocols have similar performances for networks with limited devices and/or traffic, whereas when devices and/or traffic increases, WRT-Ring has to be preferred.