Dynamic Metric Choice Routing for Wireless Mesh Networks

Gomes, Rafael L.; Moreira, Waldir; Nascimento, Vagner; Abelém, Antônio

doi:10.1109/tla.2009.5349045

Cited by 7 publications

(11 citation statements)

References 12 publications

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“…The OLSR -Dynamic Choice (OLSR-DC) extension [16] aims to provide QoS support, giving different treatment to traffic from applications that use TCP and UDP, using the ETX metric [14] for routing TCP packets and MD metric [15] for routing UDP of packets. The protocol can also differentiate the routing of TCP and UDP packets, this is achieved due to each packet be routed according to the metrics that best reflect their needs.…”

Section: Olsr-dcmentioning

confidence: 99%

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Using fuzzy link cost and dynamic choice of link quality metrics to achieve QoS and QoE in wireless mesh networks

Gomes

Moreira

Cerqueira

et al. 2011

Journal of Network and Computer Applications

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The growth of multimedia applications and wireless systems requires a new behavior of routing protocols for Wireless Mesh Networks (WMNs). It is necessary to provide not only the minimum requirements for Quality of Service (QoS), but also to assure the Quality of Experience (QoE) support for multimedia applications. In this context, the usage of only one link quality metric for routing different types of packets within the network is not enough to ensure applications with suitable QoS and QoE levels. This paper presents a variation of the WMN routing protocol Optimized Link State Routing (OLSR), to achieve QoS and QoE requirements for multimedia applications. It is based on the dynamic choice of metrics and in a Fuzzy Link Cost (FLC) to determine the best routes for multimedia packets. The proposed FLC metric is based on a fuzzy system that uses two link quality metrics, namely Expected Transmission Count (ETX) and Minimum Delay (MD), to define a new metric. Simulations were performed to demonstrate the performance of the proposed metric compared to the ones present in the original OLSR and other current versions of this protocol. For comparison purposes, it was considered different performance evaluation QoS metrics and the quality of videos received by the user in a higher competition scenario.

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Section: Olsr-dcmentioning

confidence: 99%

“…Transmission Control Protocol (TCP) packets continue to be routed according to the ETX metric, as in [16]. This proposed version of the OLSR protocol is named Optimized Link State Routing -Fuzzy Link Cost (OLSR-FLC).…”

Section: Introductionmentioning

confidence: 99%

Using fuzzy link cost and dynamic choice of link quality metrics to achieve QoS and QoE in wireless mesh networks

Gomes

Moreira

Cerqueira

et al. 2011

Journal of Network and Computer Applications

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show abstract

“…Hence, in the OLSR-MD protocol the route selection between the current node and any other node in the network will have as criteria the lowest sum of the different transmission delays of all links along the path. The OLSR-Dynamic Choice (OLSR-DC) extension (Gomes et al, 2008) aims to provide QoS support, giving different treatment to traffic from applications that use TCP and UDP, using the ETX metric for routing TCP packets and MD metric for routing UDP of packets. The protocol can also decouple the routing of TCP and UDP packets, this is achieved due to each packet be routed according to the metrics that best reflect their needs.…”

Section: Quality Of Service Issuesmentioning

confidence: 99%

“…This enables the protocol to obtain a better video quality, against the protocols that use only one metric for routing. In some of the existing works, as in , (Gomes et al, 2008) and (Gomes et al, 2009a), the evaluation of the protocols occurred in scenarios of competition, however, the competition present in these works is small, when compared with the scenario used in this work, due to the quantity of flows used. This evaluation shows that only one metric for routing data and multimedia traffics may not be sufficient to reach acceptable QoS and QoE levels to answer the needs of the traffics, since each one has different requirements.…”

Section: Performance Evolutionmentioning

confidence: 99%

Trends and Challenges for Quality of Service and Quality of Experience for Wireless Mesh Networks

Aguiar¹,

Pinheiro²,

Figueirêdo³

et al. 2011

Wireless Mesh Networks

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“…Within this context, this paper presents an additional analysis of the WMN routing protocol, based on the OLSR (Optimized Link State Routing) protocol [7], OLSR-DC (Dynamic Choice) [8], comparing it to other versions of OLSR protocol from the network and user perspectives.…”

Section: Introductionmentioning

confidence: 99%

QoE and QoS in wireless mesh networks

Gomes

Jailton

Moreira

et al. 2009

2009 IEEE Latin-American Conference on Communications

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The increasing demand of multimedia applications requires a new behavior of routing protocols for Wireless Mesh Networks (WMNs). It is necessary to support the minimum requirements for Quality of Service (QoS), but WMNs also need to support the minimum requirements for Quality of Experience (QoE). This paper is an additional analysis of the proposed routing protocol OLSR-DC, from a perspective of the network (QoS) and from a perspective of the user (QoE). The simulations were performed to demonstrate the performance of OLSR-DC compared against original OLSR and its ETX and MD versions considering different performance evaluation metrics and the quality of the video received by the user.

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Dynamic Metric Choice Routing for Wireless Mesh Networks

Cited by 7 publications

References 12 publications

Using fuzzy link cost and dynamic choice of link quality metrics to achieve QoS and QoE in wireless mesh networks

Using fuzzy link cost and dynamic choice of link quality metrics to achieve QoS and QoE in wireless mesh networks

Trends and Challenges for Quality of Service and Quality of Experience for Wireless Mesh Networks

QoE and QoS in wireless mesh networks

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