Using group structures for efficient routing in delay tolerant networks

Thomas, Mini S.; Phand, Suhas; Gupta, Arobinda

doi:10.1016/j.adhoc.2008.04.001

Cited by 16 publications

(21 citation statements)

References 14 publications

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“…Thomas et al [20,21] and Dang and Wu [22] consider the scenario in DTN where some nodes under entity mobility may stay close to each other for some time and thus they can form a cluster. Making use of this vicinity among the nodes in one cluster for packet delivery could improve the routing performance.…”

Section: Introductionmentioning

confidence: 99%

“…The first mechanism is the group-based packet exchange. Similar to [20][21][22], by treating each cluster/group as a single node, G-ER is a two-layer routing, including the inter-group routing and intra-group routing. The strategy of ER is adopted for the inter-group routing to exchange packets between groups, and a table-driven routing is employed for the intra-group routing to handle the packet delivery inside the group.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, some previous studies [20][21][22] apply clustering to DTN to improve network performance. Thomas et al [20,21] and Dang and Wu [22] consider the scenario in DTN where some nodes under entity mobility may stay close to each other for some time and thus they can form a cluster.…”

Section: Introductionmentioning

confidence: 99%

“…Making use of this vicinity among the nodes in one cluster for packet delivery could improve the routing performance. For example, Thomas et al [20,21] employ on-demand ad-hoc routing to deliver packets quickly within the cluster; nodes in the same cluster in [22] are required to share their contact probabilities so as to find a better next hop to carry the packets.…”

Section: Introductionmentioning

confidence: 99%

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Routing strategy in disconnected mobile ad hoc networks with group mobility

Xie

Chong

Guan

2013

J Wireless Com Network

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Most of the current proposed routing protocols in delay-tolerant network (DTN) are designed based on the entity mobility. In this article, we consider the routing in DTN with group mobility, which is useful in modeling those cooperative activities. The new proposed routing scheme is called group-epidemic routing (G-ER). G-ER is designed on the basis of one DTN protocol called epidemic routing (ER). In G-ER, two strategies related to the unique characteristics of the group mobility have been proposed to greatly improve ER. The first is to treat each group as a single node and exchange packets between groups instead of individual nodes. Thus, the resource-consuming problem of ER could be much alleviated. In the meantime, exchanging packets between two groups could speed up the packet delivery. The second is the buffer sharing inside a group, which is supported by the cooperative nature in group mobility. Moreover, we specifically propose a group dynamic model for group mobility to realize group splitting and merging. The performance of G-ER is studied by extensive simulations and compared with ER and dynamic source routing (DSR). Results show that G-ER outperforms ER and DSR in different network scenarios even with group dynamics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Routing strategy in disconnected mobile ad hoc networks with group mobility

Xie

Chong

Guan

2013

J Wireless Com Network

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“…At present, many research works of DTN mainly focus on routing protocols. Due to the uncertainty of transmission opportunities, the routing algorithm needs to select some nodes as relay which carry and forward data for other nodes [9,10] . A flood-based Epidemic routing algorithm was proposed in [11,12].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Performance Analysis of Marine DTN Networks with Nodes-cluster in an Ad Hoc Sub-net

Shi¹,

Li²,

Du³

et al. 2016

Proceedings of the 2016 International Conference on Computer Engineering and Information Systems

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Abstract-The marine communication environment is complex and changeable, and the sea wireless infrastructure is few. The delay tolerant network is proposed and applied in ocean environment. We use the ships to store, carry and forward the messages, so as to solve the problem that the communication links are broken frequently and the message cannot be transmitted due to the movement of the nodes. Under the environment of MATLAB, the random motion trajectory of a fishing vessel in the South China Sea is modeled and simulated. A mobile Ad hoc network is formed between ship and ship, and the base station of the land mobile communication network is connected with the marine radio transmitting point through optical fiber. Data is generated according to Poisson distribution in a heterogeneous network at sea and the data transmission uses the flooding mechanism. Taking into account the limited capacity of the wireless transmission point of the sea, we introduced a forwarding-time-limited mechanism. The performance of it is analyzed in the delayed network at sea, and the effects of the survival time, the number of fishing vessels and the coverage of the wireless network on data delivery are compared. The simulation results show that increasing the survival time of the data and the coverage of the wireless network can improve the data delivery ratio, reduce the network transmission delay, and improve the performance of the maritime wireless communication network.

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