Priority queue based reactive buffer management policy for delay tolerant network under city based environments
Delay Tolerant Network (DTN) multi-copy routing protocols are privileged to create and transmit multiple copies of each message that causes congestion and some messages are dropped. This process is known as reactive drop because messages were dropped re-actively to overcome buffer overflows. The exi...
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my.utm.859372020-07-30T07:39:02Z http://eprints.utm.my/id/eprint/85937/ Priority queue based reactive buffer management policy for delay tolerant network under city based environments Ayub, Qaisar Md. Ngadi, Asri Rashid, Sulma Habib, Hafiz Adnan QA75 Electronic computers. Computer science Delay Tolerant Network (DTN) multi-copy routing protocols are privileged to create and transmit multiple copies of each message that causes congestion and some messages are dropped. This process is known as reactive drop because messages were dropped re-actively to overcome buffer overflows. The existing reactive buffer management policies apply a single metric to drop source, relay and destine messages. Hereby, selection to drop a message is dubious because each message as source, relay or destine may have consumed dissimilar magnitude of network resources. Similarly, DTN has included time to live (ttl) parameter which defines lifetime of message. Hence, when ttl expires then message is automatically destroyed from relay nodes. However, time-to-live (ttl) is not applicable on messages reached at their destinations. Moreover, nodes keep replicating messages till ttl expires even-though large number of messages has already been dispersed. In this paper, we have proposed Priority Queue Based Reactive Buffer Management Policy (PQB-R) for DTN under City Based Environments. The PQB-R classifies buffered messages into source, relay and destine queues. Moreover, separate drop metric has been applied on individual queue. The experiment results prove that proposed PQB-R has reduced number of messages transmissions, message drop and increases delivery ratio. Plos Org 2018 Article PeerReviewed Ayub, Qaisar and Md. Ngadi, Asri and Rashid, Sulma and Habib, Hafiz Adnan (2018) Priority queue based reactive buffer management policy for delay tolerant network under city based environments. PLOS ONE, 13 (2). e0191580-e0191580. ISSN 1932-6203 http://dx.doi.org/10.1371/journal.pone.0191580 |
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QA75 Electronic computers. Computer science Ayub, Qaisar Md. Ngadi, Asri Rashid, Sulma Habib, Hafiz Adnan Priority queue based reactive buffer management policy for delay tolerant network under city based environments |
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Delay Tolerant Network (DTN) multi-copy routing protocols are privileged to create and transmit multiple copies of each message that causes congestion and some messages are dropped. This process is known as reactive drop because messages were dropped re-actively to overcome buffer overflows. The existing reactive buffer management policies apply a single metric to drop source, relay and destine messages. Hereby, selection to drop a message is dubious because each message as source, relay or destine may have consumed dissimilar magnitude of network resources. Similarly, DTN has included time to live (ttl) parameter which defines lifetime of message. Hence, when ttl expires then message is automatically destroyed from relay nodes. However, time-to-live (ttl) is not applicable on messages reached at their destinations. Moreover, nodes keep replicating messages till ttl expires even-though large number of messages has already been dispersed. In this paper, we have proposed Priority Queue Based Reactive Buffer Management Policy (PQB-R) for DTN under City Based Environments. The PQB-R classifies buffered messages into source, relay and destine queues. Moreover, separate drop metric has been applied on individual queue. The experiment results prove that proposed PQB-R has reduced number of messages transmissions, message drop and increases delivery ratio. |
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Article |
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Ayub, Qaisar Md. Ngadi, Asri Rashid, Sulma Habib, Hafiz Adnan |
author_facet |
Ayub, Qaisar Md. Ngadi, Asri Rashid, Sulma Habib, Hafiz Adnan |
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Ayub, Qaisar |
title |
Priority queue based reactive buffer management policy for delay tolerant network under city based environments |
title_short |
Priority queue based reactive buffer management policy for delay tolerant network under city based environments |
title_full |
Priority queue based reactive buffer management policy for delay tolerant network under city based environments |
title_fullStr |
Priority queue based reactive buffer management policy for delay tolerant network under city based environments |
title_full_unstemmed |
Priority queue based reactive buffer management policy for delay tolerant network under city based environments |
title_sort |
priority queue based reactive buffer management policy for delay tolerant network under city based environments |
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Plos Org |
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2018 |
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http://eprints.utm.my/id/eprint/85937/ http://dx.doi.org/10.1371/journal.pone.0191580 |
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