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| Content Provider | Springer Nature Link |
|---|---|
| Author | Koubâa, Anis Cunha, André Alves, Mário Tovar, Eduardo |
| Copyright Year | 2008 |
| Abstract | Synchronization is a challenging and important issue for time-sensitive Wireless Sensor Networks (WSN) since it requires a mutual spatiotemporal coordination between the nodes. In that concern, the IEEE 802.15.4/ZigBee protocols embody promising technologies for WSNs, but are still ambiguous on how to efficiently build synchronized multiple-cluster networks, specifically for the case of cluster-tree topologies. In fact, the current IEEE 802.15.4/ZigBee specifications restrict the synchronization to beacon-enabled (by the generation of periodic beacon frames) star networks, while they support multi-hop networking in mesh topologies, 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 this issue by unveiling the ambiguities regarding the use of the cluster-tree topology and proposing a synchronization mechanism based on Time Division Beacon Scheduling (TDBS) to build cluster-tree WSNs. In addition, we propose a methodology for efficiently managing duty-cycles in every cluster, ensuring the fairest use of bandwidth resources. The feasibility of the TDBS mechanism is clearly demonstrated through an experimental test-bed based on our open-source implementation of the IEEE 802.15.4/ZigBee protocols. |
| Starting Page | 321 |
| Ending Page | 354 |
| Page Count | 34 |
| File Format | |
| ISSN | 09226443 |
| Journal | Real-Time Systems |
| Volume Number | 40 |
| Issue Number | 3 |
| e-ISSN | 15731383 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2008-10-02 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Wireless sensor networks Multi-hop synchronization IEEE 802.15.4 ZigBee Real-time scheduling Cluster-tree Collision avoidance Control Engineering Performance and Reliability Special Purpose and Application-Based Systems Communications Engineering, Networks Computer Systems Organization and Communication Networks |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Optimization Computer Networks and Communications Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications Modeling and Simulation |
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