http://www.cnr.it/ontology/cnr/individuo/prodotto/ID203258
A Hybrid Adaptive Protocol for Reliable Data Delivery in WSNs with Multiple Mobile Sinks (Articolo in rivista)
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- A Hybrid Adaptive Protocol for Reliable Data Delivery in WSNs with Multiple Mobile Sinks (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Alternative label
Borgia E. [1], Conti M. [1], Gregori E. [1], Anastasi G. [2] (2011)
A Hybrid Adaptive Protocol for Reliable Data Delivery in WSNs with Multiple Mobile Sinks
in Computer journal (Nicos.); Oxford University Press, Oxford (Regno Unito)
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- Borgia E. [1], Conti M. [1], Gregori E. [1], Anastasi G. [2] (literal)
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- ID_PUMA : cnr.iit/2011-A0-002.
ID Modulo Commessa 4182 - INT.P01.001.002 - 044 - Ubiquitous Internet (literal)
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- [1] CNR-IIT, Pisa, Italy; [2] Dept. of Information Engineering University of Pisa, Italy (literal)
- Titolo
- A Hybrid Adaptive Protocol for Reliable Data Delivery in WSNs with Multiple Mobile Sinks (literal)
- Abstract
- In this paper, we deal with reliable and energy-efficient data delivery in sparse wireless sensor networks (WSNs) with multiple mobile sinks (MSs). This is a critical task, especially when MSs move randomly, as interactions with sensor nodes are unpredictable, typically of short duration and affected by message losses. In addition, multiple MSs can be simultaneously present in the sensor contact area making the minimum energy data delivery a complex optimization problem. To solve the above issues, in this paper we propose a novel protocol that efficiently combines erasure coding with an Automatic Repeat reQuest (ARQ) scheme. The key features of the proposed protocol are as follows: (i) the use of redundancy to cope efficiently with message losses in the multicast environment and (ii) the ability of adapting the level of redundancy based on feedbacks sent back by MSs through acks. We observed by simulation that our protocol outperforms an alternative protocol that relies only on an ARQ scheme, even when there is a single MS. We also validated our simulation results through a set of experimental measurements based on real sensor nodes. Our results show that the adoption of encoding techniques increases the lifetime of the sensor in the range (40?55%) compared with standard simple ARQ approaches when applied to WSNs with MSs. (literal)
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