Multi-radio multi-channel routing metrics in IEEE 802.11s-based wireless mesh networks &amp;#x2014; And the winner is &amp;#x2026;

Ghannay, Sana; Gammar, Sonia Mettali; Filali, Fethi; Kamoun, Farouk

doi:10.1109/comnet.2009.5373550

Cited by 18 publications

(19 citation statements)

References 14 publications

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“…New metrics, such as ETX, ETT, WCETT, MIC, etc. [9], are proposed towards a quality-aware routing, in order to reflect more the link variations such as transmission capacity, loss probability, interferences, etc. In our experiments, we intend to evaluate and compare the performances of OLSR under two routing metrics aware of the link quality which are ETX [3] and ETT [4].…”

Section: Routing Metricsmentioning

confidence: 99%

Experimental performance analysis of routing metrics in Wireless Mesh Networks

Houaidia¹,

Bossche²,

Idoudi

et al. 2013

2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC)

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This paper provides a description of a wireless mesh network testbed setup and a measurement-based performance evaluation of the Optimized Link State Routing (OLSR) protocol [7] under three different routing metrics. The considered metrics include hop-count, ETX and ETT. The network performances are evaluated in an indoor testbed formed by heterogeneous MIMO devices. A part of our tests was about the impact of 802.11n features on the network performances showing the importance of lower layers consideration. Our measurements point out the shortcoming of each metric and eventual optimizations towards a more efficient routing. Experimental results show that OLSR-ETT outperforms OLSR-ETX and OLSR-hopcount significantly in terms of packet loss, end-to-end delay, and efficiency.

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Section: Routing Metricsmentioning

confidence: 99%

Experimental performance analysis of routing metrics in Wireless Mesh Networks

Houaidia¹,

Bossche²,

Idoudi

et al. 2013

2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC)

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“…With ETX metric, the link quality estimation is based on small size probes (some bytes) which does not properly reflect the data loss probability. For that reason there were other improvements such WCETT (Draves et al, 2004;Ghannay et al, 2009) and MIC (Draves et al (2004), etc. In real scenarios, such our experiments, we clearly note the important packet loss rate and delay made by ETX while increasing the traffic load or the packet size.…”

Section: Discussionmentioning

confidence: 99%

Towards an optimised traffic-aware routing in wireless mesh networks

Houaidia¹,

Idoudi

Bossche³

et al. 2014

IJSSC

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In this paper, we study through simulations the impact of PHY/MAC protocols on higher layers. In a comparative way, we investigate the effectiveness of some protocols when they coexist on a wireless mesh network environment. Results show that PHY/MAC parameters have an important impact on routing performances. Based on these results, we propose two traffic-aware routing metrics based on link availability. The information about the link availability/occupancy is picked up from lower layers using a cross-layer approach. The first metric is load-sensitive and aims to balance the traffic load according to the availability of a link to support additional flows. The second metric reproduces better the capacity of a link since it is based on its residual bandwidth. Using several real experiments, we have shown that our proposals can accurately determine better paths in terms of throughput and delay. Our experiments are carried out into a heterogeneous IEEE 802.11n-based network running with OLSR routing protocol.

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“…the channels that will be used through the network. Thus, in multiradio networks, the routing metrics should be aware of the channel allocation of the network in order to take advantage of it [8]. In fact, routing metrics can be seen as a distributed way of allocating available channels [14].…”

Section: Related Workmentioning

confidence: 99%

“…Thus, in order to exploit the benefits of the channel assignment solution, the routing metric should be aware of the channel allocation of the network [8].…”

Section: Introductionmentioning

confidence: 99%

A performance study of practical channel assignment solutions in multi-radio multi-hop IEEE 802.11 networks

Catalan-Cid

Gómez

Paradells

2013

Proceedings of the 10th ACM Symposium on Performance Evaluation of Wireless Ad Hoc, Sensor, &Amp; Ubiquitous Networks

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Multi-radio IEEE 802.11 nodes make use of the multiple channels defined by the standard in order to improve multi-hop networks performance. Since the number of available non-overlapping channels is usually higher than the number of interfaces per node, channel assignment mechanisms are needed. However, implementing an efficient channel assignment is a complex task. Problems like the trade-off between channel diversity and network connectivity, the circular dependency between routing and channel allocation, and the significant delay when switching the channel of the interfaces, have to be considered. Considerable research effort has been devoted to this topic. However, many proposals lack of practical vision and are complex to implement in real networks. This paper presents a performance study of practical or readily applicable channel assignment solutions, including our own proposal based on dynamic allocation of the channels. We discuss the benefits and drawbacks of the different strategies, whose conclusions can be applied to the design and evaluation of other practical solutions.

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Multi-radio multi-channel routing metrics in IEEE 802.11s-based wireless mesh networks — And the winner is …

Cited by 18 publications

References 14 publications

Experimental performance analysis of routing metrics in Wireless Mesh Networks

Experimental performance analysis of routing metrics in Wireless Mesh Networks

Towards an optimised traffic-aware routing in wireless mesh networks

A performance study of practical channel assignment solutions in multi-radio multi-hop IEEE 802.11 networks

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