CPTR: conditional probability tree based routing in opportunistic networks

Derakhshanfard, Nahideh; Sabaei, Masoud; Rahmani, Amir Masoud

doi:10.1007/s11276-015-1136-4

Cited by 9 publications

(3 citation statements)

References 39 publications

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“…To the best of our knowledge, there is no work in the the literature on secure multi geocasting in OppNets [10][11][12][13][14]. Therefore, the work described in this paper is based on unitary geocasting and multi-geocasting in oppnets and other network environments.…”

Section: Related Workmentioning

confidence: 99%

SMGSAF: A Secure Multi-Geocasting based Routing Scheme for Opportunistic Networks

Singh

Dhurandher

Kumar

et al. 2021

Preprint

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This paper proposes a novel Secure Multi- Geocasting Spray And Flood technique for opportunistic networks called SMGSAF, which uses secret sharing and disjoint path routing to secure the privacy of messages. In multi-geocasting, routing aims to successfully deliver a given geomessage to all the nodes, or to as many as possible, located inside defined geographic areas within a given time interval. It is desired that as long as a message is outside its destination casts it cannot be read by intermediate nodes. Encryption is a proven way to ensure this but classical encryption techniques are not well suited for the opportunistic paradigm. Key distribution and scarcity of resources are the major challenges in this regard. Therefore we have used secret sharing and disjoint path routing to protect the privacy of messages. Simulation results show that the proposed SMGSAF protocol provides the intended security but at the expense of performance, that is within acceptable limits. Notably, the SMGSAF protocol outperforms unitary geocasting in terms of delivery probability. The proposed protocol is evaluated in terms of delivery probability, network overhead, and latency. Its performance has been compared to MGSAF and GSAF.

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Section: Related Workmentioning

confidence: 99%

SMGSAF: A Secure Multi-Geocasting based Routing Scheme for Opportunistic Networks

Singh

Dhurandher

Kumar

et al. 2021

Preprint

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“…In the next section, we consider the optimal packet forwarding rule. So far, many store-carry-forward routing schemes for efficient use of energy have been proposed [23][24][25][26][27][28]. Although these routing schemes can be incorporated to enhance the intermittently connected sensor networks, we leave this improvement for future work.…”

Section: System Modelmentioning

confidence: 99%

Design of energy‐efficient intermittently connected sensor networks

Kimura

Fukuoka

Hirata

et al. 2021

IEEJ Transactions Elec Engng

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This paper introduces the concept of intermittently connected sensor networks where sensors are sleep most of time and become active randomly and rarely. In the networks, packet collision probability and power consumption can be reduced. Meanwhile, the delivery delay increases with the use of the low activation values. In this paper, we design the energy-efficient intermittently connected sensor networks, considering this trade-off of activation control. We first provide the algorithm that computes the optimal packet forwarding rule achieving the minimum delivery delay, which can be calculated using the activation rates. We then propose the activation rate control methods, which control the activation rates of the sensors based on the density of the sensors and/or the number of wake-ups of sensors having relay packets. By doing this, we can improve the delay performance, while suppressing the increase in the packet collision probability and the power consumption of sensors. Through simulation experiments, we demonstrate the effectiveness of our activation control methods in the intermittently connected sensor networks.

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“…Routing is done through a store-carry and forward pattern [2] due to lack of an end to end path between the source and the destination node. Nodes in these networks are mobile and the delay in data transferring due to lack of a connected and recognized path between the source and the destination node, and lack of critical feature of immediate data receipt are mostly among the outstanding features of such networks [4] [5]. Delay Tolerant Networks are often established in areas through which there is not any infrastructure for networks.…”

Section: Introductionmentioning

confidence: 99%

Adaptive behavior with selfish nodes based on fuzzy logic in delay tolerant network

Rashidjafari

Derakhshanfard

2022

Preprint

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Delay Tolerant Networks is a kind of Mobile Ad Hoc Networks which the nodes are mobile and therefore there is not any end to end path between the source and the destination node. Due to frequent disruption between the links, nodes use a store, carry and forward pattern to send messages in such networks. Message forward and carry is achieved due to the cooperation between relay nodes. Some of the nodes may avoid this cooperation to preserve their own sources (such as buffer and energy) and they are known as Selfish Nodes. In this paper a selfish node detection method based on a fuzzy logic is presented. In this method, the parameters of number of packet send and receive through node, centrality degree, and buffer capacity are considered as fuzzy inputs. The fuzzy outputs are active, semi-selfish, or selfish nodes and the nodes are treated based on it. The simulation results show that the proposed method improves the criteria of delivery rate and average delay compared with related works.

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CPTR: conditional probability tree based routing in opportunistic networks

Cited by 9 publications

References 39 publications

SMGSAF: A Secure Multi-Geocasting based Routing Scheme for Opportunistic Networks

SMGSAF: A Secure Multi-Geocasting based Routing Scheme for Opportunistic Networks

Design of energy‐efficient intermittently connected sensor networks

Adaptive behavior with selfish nodes based on fuzzy logic in delay tolerant network

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