scholarly journals Performance Improvement of DTN Routing Protocols with Enhanced Buffer Management Policy

2019 ◽  
Vol 8 (4) ◽  
pp. 9852-9857
Keyword(s):  
Routing Protocols ◽  
Buffer Management ◽  
Delay Tolerant Network ◽  
Management Policy ◽  
Management Approach ◽  
Efficient Approach ◽  
Message Size ◽  
Delivery Probability ◽  
Buffer Time ◽  
Dtn Routing

Delay tolerant network (DTN) is one of the emerging technologies which is applied generally when there is no end-to-end path exists from source to destination all the time. The two major issues in DTN are routing and buffer management. Existing buffer management policies are based on one or more parameters such as message Time-to-Live, message age, message replication count, message size etc.,. There is no efficient approach is available for estimation of message replication count. In this work an efficient approach is proposed to estimate total number of copies of the message. The proposed buffer management approach prioritizes the messages and based on which the messages are forwarded/dropped from the buffer when there is a contact opportunity occurs/when the buffer is full. These priorities are based on message Time-to-Live, message age, message replication count and message size. This proposed buffer management policy is evaluated with two popular DTN routing protocols Spray-and-Wait and Prophet. The simulation results show that delivery probability of messages has increased with reduced buffer time average and minimized latency.

Message Drop Control Buffer Management Policy for DTN Routing Protocols

2013 ◽  
Vol 72 (1) ◽  
pp. 653-669 ◽  
Author(s):  
Sulma Rashid ◽  
Qaisar Ayub ◽  
M. Soperi Mohd Zahid ◽  
Abdul Hanan Abdullah
Keyword(s):  
Routing Protocols ◽  
Buffer Management ◽  
Management Policy ◽  
Dtn Routing

Reactive Weight Based Buffer Management Policy for DTN Routing Protocols

2014 ◽  
Vol 80 (3) ◽  
pp. 993-1010 ◽  
Author(s):  
Sulma Rashid ◽  
Qaisar Ayub ◽  
Abdul Hanan Abdullah
Keyword(s):  
Routing Protocols ◽  
Buffer Management ◽  
Management Policy ◽  
Dtn Routing

NWBBMP: a novel weight-based buffer management policy for DTN routing protocols

2017 ◽  
Vol 11 (5) ◽  
pp. 917-923 ◽  
Author(s):  
Hezhe Wang ◽  
Huiqiang Wang ◽  
Guangsheng Feng ◽  
Hongwu Lv
Keyword(s):  
Routing Protocols ◽  
Buffer Management ◽  
Management Policy ◽  
Dtn Routing

scholarly journals E DROP An Effective Drop Buffer Management Policy for DTN Routing Protocols

2011 ◽  
Vol 13 (7) ◽  
pp. 8-13 ◽  
Author(s):  
Sulma Rashid ◽  
Qaisar Ayub ◽  
M. Soperi Mohd Zahid ◽  
A.Hanan Abdullah
Keyword(s):  
Routing Protocols ◽  
Buffer Management ◽  
Management Policy ◽  
Dtn Routing

scholarly journals A Probabilistic VDTN Routing Scheme Based on Hybrid Swarm-Based Approach

2020 ◽  
Vol 12 (11) ◽  
pp. 192
Author(s):  
Youcef Azzoug ◽  
Abdelmadjid Boukra ◽  
Vasco N. G. J. Soares
Keyword(s):  
Delay Tolerant Network ◽  
Relay Nodes ◽  
Hybrid Swarm ◽  
Recovery Method ◽  
Delivery Delay ◽  
Delivery Probability ◽  
Glowworm Swarm Optimization ◽  
Dtn Routing ◽  
Metaheuristic Techniques ◽  
Delay Tolerant

The probabilistic Delay Tolerant Network (DTN) routing has been adjusted for vehicular network (VANET) routing through numerous works exploiting the historic routing profile of nodes to forward bundles through better Store-Carry-and-Forward (SCF) relay nodes. In this paper, we propose a new hybrid swarm-inspired probabilistic Vehicular DTN (VDTN) router to optimize the next-SCF vehicle selection using the combination of two bio-metaheuristic techniques called the Firefly Algorithm (FA) and the Glowworm Swarm Optimization (GSO). The FA-based strategy exploits the stochastic intelligence of fireflies in moving toward better individuals, while the GSO-based strategy mimics the movement of glowworm towards better area for displacing and food foraging. Both FA and GSO are executed simultaneously on each node to track better SCF vehicles towards each bundle’s destination. A geography-based recovery method is performed in case no better SCF vehicles are found using the hybrid FA–GSO approach. The proposed FA–GSO VDTN scheme is compared to ProPHET and GeoSpray routers. The simulation results indicated optimized bundles flooding levels and higher profitability of combined delivery delay and delivery probability.

scholarly journals Correction: Priority Queue Based Reactive Buffer Management Policy for Delay Tolerant Network under City Based Environments

PLoS ONE ◽  
2019 ◽  
Vol 14 (10) ◽  
pp. e0224826
Author(s):  
Qaisar Ayub ◽  
Md Asri Ngadi ◽  
Sulma Rashid ◽  
Hafiz Adnan Habib
Keyword(s):  
Buffer Management ◽  
Priority Queue ◽  
Delay Tolerant Network ◽  
Management Policy ◽  
Delay Tolerant

scholarly journals How to Enable Delay Tolerant Network Solutions for Internet of Things: From Taxonomy to Open Challenges

Proceedings ◽  
2019 ◽  
Vol 31 (1) ◽  
pp. 24
Author(s):  
Selma Bounsiar ◽  
Fatima Zohra Benhamida ◽  
Abderrazak Henni ◽  
Diego López de Ipiña ◽  
Diego Casado Mansilla
Keyword(s):  
Internet Of Things ◽  
Routing Protocols ◽  
New Technologies ◽  
Fog Computing ◽  
Delay Tolerant Network ◽  
Dtn Routing ◽  
Communication Challenges ◽  
Delay Tolerant ◽  
Open Issues

Internet of Things (IoT) is witnessing an increasing range of application domains (industry 4.0, eHealth, smart city, etc.). Meanwhile, IoT is still facing communication challenges because of limited capabilities in computing, storage and energy constraints of smart objects. The use of Delay Tolerant Network (DTN) as basis for communication in IoT is promising but needs more development. In this paper, we present a literature review and a classification of DTN routing protocols. Furthermore, we survey a number of DTN solutions for IoT and propose a new taxonomy to motivate the importance of enabling DTN for IoT applications. The novelty of this classification is the focus on X-DTN category, which combines Delay Tolerant schemes with new technologies (e.g., Fog Computing). We also point out some open issues for potential Delay Tolerant IoT schemes.

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