Michael González Harbour: MaRTE OS: An Ada Kernel for Real-Time Embedded Applications
Ada Europe '01 Proceedings of the 6th Ade-Europe International Conference Leuven on Reliable Software Technologies
Wireless Token Ring Protocol-Performance Comparison with IEEE 802.11
ISCC '03 Proceedings of the Eighth IEEE International Symposium on Computers and Communications
Providing MAC QoS for multimedia traffic in 802.11e based multi-hop ad hoc wireless networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Providing QoS in ad hoc networks with distributed resource reservation
ITC20'07 Proceedings of the 20th international teletraffic conference on Managing traffic performance in converged networks
Wireless Communications
Underground Mine Communications: A Survey
IEEE Communications Surveys & Tutorials
Radio-channel characterization of an underground mine at 2.4 GHz
IEEE Transactions on Wireless Communications
DUCHA: A New Dual-Channel MAC Protocol for Multihop Ad Hoc Networks
IEEE Transactions on Wireless Communications
Does the IEEE 802.11 MAC protocol work well in multihop wireless ad hoc networks?
IEEE Communications Magazine
Signal-based deployment planning for robot teams in tunnel-like fading environments
International Journal of Robotics Research
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The underground communication in tunnels and mines is very challenging due to the hostile nature of the environments and to the propagation issues that electromagnetic waves suffer there. Communication is often unidirectional (e.g. in mines) or very costly (e.g. leaky feeder in road tunnels) and hard to install and maintain. This work proposes the use of multi-hop ad-hoc networks to provide multimedia communication between mobile nodes in such a hostile environments, relying on a complete hardware/software, cheap and easy-to-setup platform that can be used both as temporary or fixed infrastructure or as communication backbone in emergency scenarios like mine accidents or a tunnel collapse. The communication is based on the Real-Time Multi-hop Protocol (RT-WMP) and its QoS extension executed over several nodes equipped with specific hardware. This protocol manages delay sensitive messages and the node mobility across the network while the QoS extension is responsible for allowing the end-to-end voice communication. The specific topology and situation have driven to a specialization of RT-WMP to better perform in this type of environments, taking advantage of the a priori (partial) knowledge about the topology. This proposal was tested in a real application in the Somport tunnel, the about 8km-long railroad linking Canfranc, Spain with Pau, France.