Recovery techniques in next generation networks

Haider, Aun; Harris, Richard

doi:10.1109/comst.2007.4317617

Cited by 44 publications

(29 citation statements)

References 70 publications

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“…Moreover, backup path method is used in [24] to protect secondary users from primary user interruption. Recovery methods can be classified into two main schemes: restoration and protection [25]. Restoration is reactive approach where a backup path is computed once a failure is detected.…”

Section: Introductionmentioning

confidence: 99%

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Robust provisioning of multicast sessions in cognitive radio networks

Almasoud

Kamal

2014

2014 International Wireless Communications and Mobile Computing Conference (IWCMC)

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Section: Introductionmentioning

confidence: 99%

“…These algorithms construct multicast trees in cognitive radio networks, and protect them against failures using the protection approach. The reason for using protection method is that it achieves faster recovery than restoration [25].…”

Section: Introductionmentioning

confidence: 99%

Robust provisioning of multicast sessions in cognitive radio networks

Almasoud

Kamal

2014

2014 International Wireless Communications and Mobile Computing Conference (IWCMC)

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“…On the other hand, a basic inference task consists in finding the most probable state of the world given the evidence , i.e., the world in which the sum of the weight of all satisfied groundings is maximized 1 . For this purpose, given the evidence , it suffices to compute the following [41]: (3) where is the number of true groundings of formula involving atoms .…”

Section: (B) Incremental Markov Logic Network (Imln)mentioning

confidence: 99%

“…Network survivability, defined in [1] as the ability to provide continuous service in the presence of failures, is a critical issue for high-bandwidth backbone optical networks with arbitrary mesh topologies. Failures in fiber-optic networks occur often due to the fact that they are a cable-based technology and the infrastructure is co-located with networks for other utilities.…”

Section: Introductionmentioning

confidence: 99%

Practical issues for the implementation of survivability and recovery techniques in optical networks

Ellinas¹,

Papadimitriou²,

Rak³

et al. 2014

Optical Switching and Networking

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Failures in optical networks are inevitable. They may occur during work being done for the maintenance of other infrastructures, or on a larger scale as the result of an attack or large-scale disaster. As a result, service availability, an important aspect of Quality of Service (QoS), is often degraded. Appropriate fault recovery techniques are thus crucial to meet the requirements set by the Service Level Agreements (SLAs) between the carriers and their customers.In this paper, we focus on practical issues related to the deployment of fault recovery mechanisms in commercial optical networks. In particular, we outline the most important functionalities that, to our knowledge, need to be implemented, as well as discuss the related problems making deployment of fault recovery mechanisms difficult. Investigated topics include: fault recovery challenges (fault detection, location, and recovery), multiple failures recovery, as well as application of reliability mechanisms in elastic optical networks, and in multiprovider multilevel networks.

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“…Transmission reliability can be improved by using network survivability mechanisms aimed at providing the continuous service in the presence of failures [7][8][9]. They were originally proposed for wired networks, and typically utilize the idea of backup (alternate) paths [10] forwarding the traffic after failures of links/nodes affecting the respective primary paths of transmission.…”

Section: Introductionmentioning

confidence: 99%

A new approach to design of weather disruption-tolerant wireless mesh networks

Rak

2015

Telecommun Syst

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Wireless Mesh Networks, offering transmission rates of 1-10 Gb/s per a millimeter-wave link (utilizing the 71-86 GHz band) seem to be a promising alternative to fiber optic backbone metropolitan area networks because of significantly lower costs of deployment and maintenance. However, despite providing high transmission rates in good weather conditions, high-frequency wireless links are very susceptible to weather disruptions. In particular, heavy rain storms may lead to remarkable signal attenuation. In this paper, we introduce a new transmission technique for wireless mesh networks to mitigate the negative effects of link quality degradation due to rain storms. In particular, our method is the first one to use information on forecasted attenuation of links based on radar measurements to perform in advance the periodic updates of a network topology. Our approach is easily implementable in practice, since functionality of dynamic antenna alignment is currently offered by a number of equipment vendors. Other contributions of the paper include presentation of the ILP model of weatherresistant links formation problem followed by analysis of its computational complexity. Results of simulations, performed for three real scenarios of rain storms, show that our approach is very efficient in reducing the level of signal attenuation.

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Recovery techniques in next generation networks

Cited by 44 publications

References 70 publications

Robust provisioning of multicast sessions in cognitive radio networks

Robust provisioning of multicast sessions in cognitive radio networks

Practical issues for the implementation of survivability and recovery techniques in optical networks

A new approach to design of weather disruption-tolerant wireless mesh networks

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