An Efficient Buffer Management Policy for DTN

Sobin, C. C.

doi:10.1016/j.procs.2016.07.215

Cited by 19 publications

(4 citation statements)

References 4 publications

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“…On the other hand, the delivery and Packet Loss (PL) ratios are related to Buffer Size (BS). If buffer size is increased, Delivery Ratio (DR) also increases [198]. Whereas if buffer size is increased, packet loss ratio is decreased.…”

Section: Inter Contact Time Ictmentioning

confidence: 99%

A taxonomy on misbehaving nodes in delay tolerant networks

Khalid

Ullah

Ahmed

et al. 2018

Computers & Security

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Delay Tolerant Networks (DTNs) are type of Intermittently Connected Networks (ICNs) featured by long delay, intermittent connectivity, asymmetric data rates and high error rates. DTNs have been primarily developed for InterPlanetary Networks (IPNs), however, have shown promising potential in challenged networks i.e. DakNet, ZebraNet, KioskNet and WiderNet. Due to unique nature of intermittent connectivity and long delay, DTNs face challenges in routing, key management, privacy, fragmentation and misbehaving nodes. Here, misbehaving nodes i.e. malicious and selfish nodes launch various attacks including flood, packet drop and fake packets attack, inevitably overuse scarce resources (e.g., buffer and bandwidth) in DTNs. The focus of this survey is on a review of misbehaving node attacks, and detection algorithms. We firstly classify various of attacks depending on the type of misbehaving nodes. Then, detection algorithms for these misbehaving nodes are categorized depending on preventive and detective based features. The panoramic view on misbehaving nodes and detection algorithms are further analyzed, evaluated mathematically through a number of performance metrics. Future directions guiding this topic are also presented.

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Section: Inter Contact Time Ictmentioning

confidence: 99%

A taxonomy on misbehaving nodes in delay tolerant networks

Khalid

Ullah

Ahmed

et al. 2018

Computers & Security

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“…However, buffer management scheme for DTN is not applicable to either WSN or MANET because of their different design and topology. A node in DTN will hold and retain the packet until a path or connection is available as the buffer management policy is dependent on combination of packet scheduling to cope with the problem of limited encounter opportunity between communication nodes [7]. In [8], [8], [9] MANET, nodes will discard the packet if not found a connected link to the destination.…”

Section: Methodsmentioning

confidence: 99%

Enhanced Buffer Management Policy and Packet Prioritization for Wireless Sensor Network

Rabileh

Bakar

Mohamed³

et al. 2018

Int. J. Adv. Sci. Eng. Inf. Technol.

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Limited storage of the sensor node is one of the main causes of packet drop in the Wireless sensor network (WSN). Frequent link disconnection is also another cause of packet drop. Due to lack of continues end-to-end connection; neighbouring nodes might not be able to connect with one another. Hence, communication may be setup with the help of store and forward approach between the source and destination. In that case, the sensor node may not be capable of storing a chunk of data since the buffer is available in a small amount. In order to store the data packets in the buffer when the link is down, an effective buffer management scheme is highly needed to keep the data packets for a long time until the link is re-established. This paper proposes a new buffer management scheme called Packet Priority Heterogonous Queue (PPHQ), which based on prioritizing and classifying the packets into different categories to minimize the loss of important packets. Unlike the existing Multi-layer WSN, that treats the data packets differently; we considered the data packets such as; temperature, humidity, and pressure to be same. However, the classification of different packet types is based on the sensor's information value. We completely divide the whole buffer into different queues, and thus the newly arrived packets are inserted in their corresponding queue. The buffer will then prioritize and schedule on which packet to be stored or transmit first when the buffer is overloaded. Our result exhibits that PPHQ scheme indeed provides minimum packet drop as well as maximum throughput compared to existing Multi-layer WSN buffer management schemes.

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“…Its performance is better in the case if the messages available in the buffer have greater or equal size of an incoming message and in case of small messages through which process it selects more than one message to accommodate an incoming large message. [32] suggested a new message drop policy for buffer management called novel buffer management scheme. It works on two parameter,s i.e., hop count and TTL.…”

Section: Related Workmentioning

confidence: 99%

SS‐Drop: A Novel Message Drop Policy to Enhance Buffer Management in Delay Tolerant Networks

Rehman

Abbasi

Hashem

et al. 2021

Wireless Communications and Mobile Computing

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A challenged network is one where traditional hypotheses such as reduced data transfer error rates, end-to-end connectivity, or short transmissions have not gained much significance. A wide range of application scenarios are associated with such networks. Delay tolerant networking (DTN) is an approach that pursues to report the problems which reduce communication in disrupted networks. DTN works on store-carry and forward mechanism in such a way that a message may be stored by a node for a comparatively large amount of time and carry it until a proper forwarding opportunity appears. To store a message for long delays, a proper buffer management scheme is required to select a message for dropping upon buffer overflow. Every time dropping messages lead towards the wastage of valuable resources which the message has already consumed. The proposed solution is a size-based policy which determines an inception size for the selection of message for deletion as buffer becomes overflow. The basic theme behind this scheme is that by determining the exact buffer space requirement, one can easily select a message of an appropriate size to be discarded. By doing so, it can overcome unnecessary message drop and ignores biasness just before selection of specific sized message. The proposed scheme Spontaneous Size Drop (SS-Drop) implies a simple but intelligent mechanism to determine the inception size to drop a message upon overflow of the buffer. After simulation in ONE (Opportunistic Network Environment) simulator, the SS-Drop outperforms the opponent drop policies in terms of high delivery ratio by giving 66.3% delivery probability value and minimizes the overhead ratio up to 41.25%. SS-Drop also showed a prominent reduction in dropping of messages and buffer time average.

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An Efficient Buffer Management Policy for DTN

Cited by 19 publications

References 4 publications

A taxonomy on misbehaving nodes in delay tolerant networks

A taxonomy on misbehaving nodes in delay tolerant networks

Enhanced Buffer Management Policy and Packet Prioritization for Wireless Sensor Network

SS‐Drop: A Novel Message Drop Policy to Enhance Buffer Management in Delay Tolerant Networks

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