Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) · 2007 · 57 citations · 9 references
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ComputingComputer ScienceComputer SystemsComputer NetworksDistributed SystemsWireless CommunicationsCluster NetworkingMesh NetworksSensor NetworksWireless Communication ProtocolsWireless NetworksWireless Sensor NetworksCluster-based NetworkingIeee 802.15.4Pervasive ComputingSynchronizationSynchronization In Wireless Sensor NetworksWireless Sensor Network ProtocolsZigbeeZigbee Communication Protocol
Abstract. The recently standardized IEEE 802.15.4/Zigbee protocol stack offers great potentials for ubiquitous and pervasive computing, namely for Wireless Sensor Networks (WSNs). However, there are still some open and ambiguous issues that turn its practical use a challenging task. One of those issues is how to build a synchronized multi-hop cluster-tree network, which is quite suitable for QoS support in WSNs. In fact, the current IEEE 802.15.4/Zigbee specifications restrict the synchronization in the beacon-enabled mode (by the generation of periodic beacon frames) to star-based networks, while it supports multi-hop networking using the peer-to-peer mesh topology, but with no synchronization. Even though both specifications mention the possible use of cluster-tree topologies, which combine multi-hop and synchronization features, the description on how to effectively construct such a network topology is missing. This paper tackles
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Fault-tolerant clustering of wireless sensor networks
Gunjan Gupta, Mohamed Younis · 2004 · 419 citations