Social Community Buffer Management Policy for Delay Tolerant Network

Rashid, Sulma; Ayub, Qaisar

doi:10.1007/s11277-023-10373-9

Wireless Pers Commun

2023

DOI: 10.1007/s11277-023-10373-9

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Social Community Buffer Management Policy for Delay Tolerant Network

Sulma Rashid

Qaisar Ayub

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2024

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Cited by 2 publications

References 33 publications

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Clustered DTN routing based on sensing node relationship strength

Chen,

2024

IET Communications

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Delay tolerant networks (DTNs) is a network evolved from mobile networks. Differing from the traditional network, which has a stable end‐to‐end transmission path, DTNs are sparse and intermittently connected mobile ad hoc network, which are widely used in harsh environments, such as battlefields, seabed, space communication networks, and so on. In DTNs, intermittent connectivity, partitioned network, long delays and node mobility characteristics make the network fail to communicate frequently, therefore, how to successfully forward the message is of extreme importance. Up to now, almost all the traditional models in DTNs use the store‐carry‐forward method. This paper proposes a novel clustered DTN routing model based on sensing node relationship strength. The routing mechanism takes advantage of the number of other nodes encountered by the nodes in the process of movement and the changes in the number of nodes to calculate the strength of the relationship between nodes, and clusters DTN routing according to the strength of the relationship between nodes. Moreover, the relationship between nodes in a cluster and other clusters is used to transmit messages between clusters, and messages are transmitted within clusters according to the strength of the relationship between nodes. Simulation results show that the routing mechanism not only increases the success rate of message transmission, but also reduces the transmission delay of messages and improves network performance.

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Clustered DTN routing based on sensing node relationship strength

Chen,

2024

IET Communications

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Range aware message drop policy for delay tolerant networks

Khan,

Saeed,

Majeed

et al. 2024

PeerJ Computer Science

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In delay tolerant networks (DTNs) the messages are often not delivered to the destination due to a lack of end-to-end connectivity. In such cases, the messages are stored in the buffer for a long time and are transmitted when the nodes come into the range of each other. The buffer size of each node has a limited capacity, and it cannot accommodate the new incoming message when the buffer memory is full, and as a result network congestion occurs. This leads to a low delivery probability and thus increases the overhead ratio. In this research work, a new buffer management scheme called Range Aware Drop (RAD) is proposed which considers metrics such as message size and time to live (TTL). RAD utilizes TTL as an important metric and as a result, reduces the unnecessary message drop. Simulation results reveal that RAD performs significantly better than drop oldest (DOA) and size aware drop (SAD) in terms of delivery probability and overhead ratio. The obtained results also revealed that the hop-count average of SAD is 3.9 and DOA is 3.4 while the hop-count average of RAD is just 1.7. Also, the message drop ratio of the RAD is 36.2% while SAD and DOA have message drop ratios of 73.3% and 84.9% respectively.

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Social Community Buffer Management Policy for Delay Tolerant Network

Cited by 2 publications

References 33 publications

Clustered DTN routing based on sensing node relationship strength

Clustered DTN routing based on sensing node relationship strength

Range aware message drop policy for delay tolerant networks

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