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RESEARCH PRODUCT
Achieving Robustness through Caching and Retransmissions in IEEE 802.15.4-based WSNs
Marco OrtolaniG. Lo ReD. Messinasubject
Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniComputer scienceInter-Access Point Protocolbusiness.industryComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKSEnergy consumptionNetwork allocation vectorWireless sensor networksIEEE 802.1QLogical link controlbusinessWireless sensor networkIEEE 802.15IEEE 802.11r-2008Computer networkIEEE 802.11sdescription
This paper proposes a network-layer protocol for wireless sensor networks based on the IEEE 802.15.4 standard. Our protocol is devised to provide reliable data gathering in latency-constrained applications, and exploits both the flexibility of the IEEE 802.15.4 MAC layer and features of data aggregation techniques, such as implicit acknowledgment of reception. The proposed protocol acts as a routing module and a control entity for the MAC layer and provides reliable communication, while managing power saving and synchronizertion among nodes. Without relying on MAC-layer acknowledgments, the protocol implements caching and network-layer retransmissions, triggered upon detection of a link failure. The performance of the proposed approach is studied through simulations, in which we evaluate the achieved reliability and the energy consumption with varying network settings.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-08-01 | 2007 16th International Conference on Computer Communications and Networks |