CORE: centrally optimized routing extensions for efficient bandwidth management and network coding in the IEEE 802.16 MeSH mode

Mogre, Parag S.; d’Heureuse, Nico; Hollick, Matthias; Steinmetz, Ralf

doi:10.1002/wcm.985

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…9.1 for three distinct simulation setups. Preliminary versions of the evaluation have been presented in [74,73].…”

Section: Discussionmentioning

confidence: 99%

Cross-layer bandwidth management and optimization in TDMA based wireless mesh networks using network coding

Mogre¹

2010

SIGMultimedia Rec.

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ii Abstract Wireless Mesh Networks (WMNs) provide a novel network architecture to extend broadband network coverage with low costs. Additionally, we see an increased interest in supporting demanding multimedia applications in next-generation wireless mesh networks. Provision of Quality of Service (QoS) in wireless mesh networks requires end-to-end support for routing packets via a suitable multihop route to the destination. However, in wireless mesh networks, if the medium access control layer does not support mechanisms for QoS support at a per-link level, all efforts for providing end-to-end QoS are futile. Hence, we see a trend towards standards for wireless mesh networks which support QoS at the Medium Access Control (MAC) level on a per-link basis. The IEEE 802.16 standard's mesh mode of operation, the IEEE 802.11s Mesh Deterministic Access (MDA) mode of operation, and upcoming sensor network standards such as the Wireless HART standard, support MAC layer QoS mechanisms. A common feature of these standards is the use of Time Division Multiple Access/Time Division Duplex (TDMA/TDD) for supporting QoS, by enabling the explicit reservation of bandwidth for data transmissions on individual links in the wireless mesh network. This has enabled the setup of wireless mesh networks which are able to support hard QoS guarantees, and are thus viable for supporting the highly demanding multimedia traffic which can be expected in such networks in future. This, makes wireless mesh networks using such standards attractive for network operators who want to extend the reach of their current wired networks, as well as cellular wireless networks to support additional traffic, and at the same time not incur exorbitant additional costs for the infrastructure setup.However, the bandwidth in such wireless mesh networks still remains a scarce resource. Recently, network coding has been investigated as a novel mechanism to permit the saving of valuable bandwidth in such wireless mesh networks for individual transmissions, thereby increasing the traffic carrying capacity of the wireless mesh networks significantly. Beginning from mainly theoretical work, recently we have also seen an effort to investigate the practical gains which can be obtained via deployment of network coding in wireless mesh networks. However, to-date, the practical investigations for deployment of network coding have been limited to wireless mesh networks based on the IEEE 802.11 standard. There have been no significant investigations on the deployment of network coding, and its benefits, in TDMA/TDD based multihop wireless mesh networks. Given, however, the fact that the next generation of wireless mesh networks would be using bandwidth reservation schemes to support advanced multimedia services, it is vital that network coding be investigated in the light of such wireless mesh networks. This work bridges the above gap.In this thesis we first demonstrate that contemporary packet-by-packet approaches to network coding are highly inefficient in reservation based...

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“…9.1 for three distinct simulation setups. Preliminary versions of the evaluation have been presented in [74,73].…”

Section: Discussionmentioning

confidence: 99%

Cross-layer bandwidth management and optimization in TDMA based wireless mesh networks using network coding

Mogre¹

2010

SIGMultimedia Rec.

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“…Mogre et al [8] have proposed a CORE, which addresses the problem of jointly optimizing the routing, scheduling, and bandwidth savings via network coding. Prior solutions are either not applicable in the 802.16 MeSH mode or computationally too costly to be of practical use in the WMN under realistic scenarios.…”

Section: Related Workmentioning

confidence: 99%

Bandwidth Allocation Based on Traffic Load and Interference in IEEE 802.16 Mesh Networks

Jain

Tripathi

Tiwari

2013

Journal of Engineering

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This paper introduces a traffic load and interference based bandwidth allocation (TLIBA) scheme for wireless mesh network (WMN) that improves the delay and throughput performance by proper utilization of assigned bandwidth. The bandwidth is allocated based jointly on traffic load and interference. Then a suitable path is selected based upon the least routing metric (RM) value. Simulation results are presented to demonstrate the effectiveness of the proposed approach which indicates higher bandwidth utilization and throughput as compared with existing fair end-to-end bandwidth allocation (FEBA).

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“…Network coding (see, e.g., ) provides a powerful mechanism for improving throughput and robustness in wireless networks . With network coding, a network node is not purely a packet forwarding device, but instead, it performs packet combining to increase the information content delivered in a single transmission.…”

Section: Introductionmentioning

confidence: 99%

Delay analysis in practical wireless network coding

et al. 2012

Wireless Communications

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Network coding provides a powerful mechanism for improving performance of wireless networks. In this paper, we present an analytical approach for end‐to‐end delay analysis in wireless networks that employs inter‐session network coding. Prior work on performance analysis in wireless network coding mainly focuses on the throughput of the overall network. Our approach aims to analyze the delay of each flow in the network. The theoretical basis of our approach is network calculus. In order to use network calculus to analyze the performance of traffic flows in the network, we have to address three specific problems: identifying traffic flows, characterizing broadcast links, and measuring coding opportunities. We propose solutions for these problems and discuss the practical issues when applying the approach in practice. We make three main contributions. First, we obtain theoretical formulations for computing the queueing delay bounds of traffic flows in wireless networks with network coding. Second, with the formulations, we figure out the factors that affect the queueing delay of a flow and find that first‐in first‐out scheduling cannot fully exploit the benefit of network coding. Third, in order to exploit our findings, we introduce a new scheduling scheme that can improve the performance of current practical wireless network coding. Copyright © 2012 John Wiley & Sons, Ltd.

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CORE: centrally optimized routing extensions for efficient bandwidth management and network coding in the IEEE 802.16 MeSH mode

Cited by 4 publications

References 17 publications

Cross-layer bandwidth management and optimization in TDMA based wireless mesh networks using network coding

Cross-layer bandwidth management and optimization in TDMA based wireless mesh networks using network coding

Bandwidth Allocation Based on Traffic Load and Interference in IEEE 802.16 Mesh Networks

Delay analysis in practical wireless network coding

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