Efficient and adaptive congestion control for heterogeneous delay-tolerant networks
Efficient and adaptive congestion control for heterogeneous delay-tolerant networks
复制标题
异构延迟容忍网络的高效自适应拥塞控制
DOI:
10.1016/j.adhoc.2012.03.013
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发表时间:
2012
期刊:
影响因子:
4.8
通讯作者:
Radenkovic M
中科院分区:
文献类型:
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作者:
Radenkovic M
Detecting and dealing with congestion in delay-tolerant networks (DTNs) is an important and challenging problem. Current DTN forwarding algorithms typically direct traffic towards more central nodes in order to maximise delivery ratios and minimise delays, but as traffic demands increase these nodes may become saturated and unusable. We propose CafRep, an adaptive congestion aware protocol that detects and reacts to congested nodes and congested parts of the network by using implicit hybrid contact and resources congestion heuristics. CafRep exploits localised relative utility based approach to offload the traffic from more to less congested parts of the network, and to replicate at adaptively lower rate in different parts of the network with non-uniform congestion levels. We extensively evaluate our work against benchmark and competitive protocols across a range of metrics over three real connectivity and GPS traces such as Sassy [44], San Francisco Cabs [45] and Infocom 2006 [33]. We show that CafRep performs well, independent of network connectivity and mobility patterns, and consistently outperforms the state-of-the-art DTN forwarding algorithms in the face of increasing rates of congestion. CafRep maintains higher availability and success ratios while keeping low delays, packet loss rates and delivery cost. We test CafRep in the presence of two application scenarios, with fixed rate traffic and with real world Facebook application traffic demands, showing that regardless of the type of traffic CafRep aims to deliver, it reduces congestion and improves forwarding performance.
DOI:
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发表时间:
2022
期刊:
影响因子:
--
作者:
山崎 拓真;細沼 恵里;小野 翔多;山崎 託;三好 匠
通讯作者:
三好 匠
DOI:
--
发表时间:
2011
期刊:
2011 IEEE Eighth International Conference on Mobile Ad-Hoc and Sensor Systems
影响因子:
--
作者:
Pierre;V. Conan;J. Crowcroft;Jérémie Leguay;M. Amorim;Farid Benbadis
通讯作者:
Farid Benbadis
DOI:
--
发表时间:
2010
期刊:
Wireless on Demand Network Systems and Service
影响因子:
--
作者:
Andrew Grundy;M. Radenkovic
通讯作者:
M. Radenkovic