In-network storage for virtual broker-based publish/subscribe in WSNs

Liu, Yang; Seet, Boon‐Chong; Al-Anbuky, Adnan

doi:10.1109/pimrc.2012.6362788

Cited by 7 publications

(15 citation statements)

References 12 publications

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“…Despite all researches on the Pub/Sub paradigm on WSNs [16]- [18], the reliability of the data storage has not received much attention so far. The work we found that is closer to this topic is done by Liu et al [14] and propose an improvement of the popular Distributed Hash Table (DHT) approach to distribute the data among the VBNs. Their contribution is a dynamic load balancing mechanism, called Balanced Storage (BS).…”

Section: A Balance Storage Systemmentioning

confidence: 83%

“…• First, we indeed achieve a substantial increase in the reliability of the stored data when compared with the Balanced Storage system [14], which is adopted as a benchmark in this work. The increased reliability is demonstrated by a theoretical analysis of a simplified scenario, and corroborated by more extensive simulation studies based on the scenarios proposed in [14]. • As one may expect, the improvement in reliability based on redundant coding is associated with a penalty on the communication cost of the system.…”

Section: Introductionmentioning

confidence: 93%

“…First of all, the way how coded packets are distributed naturally achieves an uniform balance of the overall storage load among the VBNs. For this reason, we do not need to execute a load balancing procedure as performed in [14]. Second, the implementation of the redundant codification of data packets makes the system tolerant to the failure of one or more VBNs (depending on the redundancy level which is being adopted).…”

Section: Fig 3: Subscribe Operationmentioning

confidence: 99%

“…As we present a comparison with a benchmark that uses the same Pub/Sub architecture, we assume the scenario adopted for them in [14]. So, we focus on a single partition (see Figure 1), with four VBNs, one data source s which sends packets to let us say VBN 1 ; and one data collector t which sends requests to VBN 3 .…”

Section: A Model Assumptionsmentioning

confidence: 99%

“…Indeed, the probabilistic guarantees offered by the authors in [12] are supposed to hold when the number of nodes is very large (see Theorem 3, pg 7 in [12]). VBC, on the other hand, was designed to operate on networks organized into small partitions, as described in [14], and it takes advantage of this structure to: (1) offer a more flexible data storage service, and (2) at a lower communication cost. The important issue here is that, although DEC performs a decentralized coding procedure, the code that is produced is a global code.…”

Section: A Comparison Of Coding Schemesmentioning

confidence: 99%

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Virtual broking coding for reliable in-network storage on WSANs

Oliveira

Ghamri‐Doudane

Brito

et al. 2015

2015 IEEE Symposium on Computers and Communication (ISCC)

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The emerging Internet of Things (IoT) paradigm makes Wireless Sensor and Actuator Networks (WSANs) seem as a central element for data production and consumption. In this realm, where data are produced and consumed within the network, WSANs have as a challenge to perform in-network data storage considering their resource shortage. In this paper, we propose the Virtual Broking Coding (VBC) as a data storage scheme compliant with WSANs constraints. As such, VBC ensures a reliable data storage and an efficient mechanism for data retrievability. To evaluate our proposed solution, we present a theoretical analysis as well as a simulation study. Using both, we show that VBC reduces the cost incurred by the coding techniques; and increases the delivery ratio of the requested data. The results presented by VBC suggest this solution as a new direction on how to use network coding based schemes to address the WSAN in-network storage problem.

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Section: A Balance Storage Systemmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 93%

Section: Fig 3: Subscribe Operationmentioning

confidence: 99%

Section: A Model Assumptionsmentioning

confidence: 99%

Section: A Comparison Of Coding Schemesmentioning

confidence: 99%

See 3 more Smart Citations

Virtual broking coding for reliable in-network storage on WSANs

Oliveira

Ghamri‐Doudane

Brito

et al. 2015

2015 IEEE Symposium on Computers and Communication (ISCC)

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Optimal Network Coding-Based In-Network Data Storage and Data Retrieval for IoT/WSNs

Oliveira

Ghamri‐Doudane

Brito

et al. 2015

2015 IEEE 14th International Symposium on Network Computing and Applications

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The evolution of the Internet of Things (IoT) allows the development of new services and applications but triggers as well a full set of new issues to be solved. Among them, there are the problems related to the integration of the WSNs in the IoT realm including those related to data access. In this paper, we address more precisely the in-network data storage and data retrieval performed in a WSN integrated in the IoT realm. In order to develop an adequate data storage scheme for this scenario, we first design a system that integrates the Virtual Broking Coding (VBC) data storage scheme in the IoT realm. Then, we propose an algorithm called Dynamic Adaptive Virtual Broking Coding (DA-VBC) that adapts dynamically the packet redundancy level adopted in VBC to the optimal redundancy level, regarding the actual condition of the network, in order to ensure a reliable data storage and data retrieval. To do so, we model the choice of the optimal redundancy level as a Markov Decision Process (MDP) problem. Using the optimal policy found by the MDP, DA-VBC always performs with the minimum costbenefit for the network which means allowing more packet to be retrieved without overload the energy consumption. The simulation results confirm that the dynamic adaptation of the redundancy level improves the reliability of the data storage scheme while achieving an energy consumption comparable to the solution that does not use any redundancy. Besides, they show that the optimization of the cost-benefit metric is far more efficient than optimizing only one metric (for instance the cost or the packet delivery ratio), or using a fixed redundancy level.

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Optimal network structuring for large-scale WSN with virtual broker based publish/subscribe

Liu

Seet

2017

2017 2nd Workshop on Recent Trends in Telecommunications Research (RTTR)

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In-network storage for virtual broker-based publish/subscribe in WSNs

Cited by 7 publications

References 12 publications

Virtual broking coding for reliable in-network storage on WSANs

Virtual broking coding for reliable in-network storage on WSANs

Optimal Network Coding-Based In-Network Data Storage and Data Retrieval for IoT/WSNs

Optimal network structuring for large-scale WSN with virtual broker based publish/subscribe

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