The nominal capacity of wireless mesh networks

Jun, Jangeun; Sichitiu, Mihail L.

doi:10.1109/mwc.2003.1241089

Cited by 409 publications

(54 citation statements)

References 14 publications

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“…12. R-factor vs number of hops traversed by a single flow as observed at the VoIP sink node resources (bandwidth) will, at most, be divided by four (Jangeun, 2003). The resulting per node throughput capacity is constant and sufficient to support a VoIP call, no matter the number of hops packets have to traverse.…”

Section: Impact Of the Number Of Hops On A Single-flow Voip Qualitymentioning

confidence: 99%

Experimental Characterization of VoIP Traffic over IEEE 802.11 Wireless LANs

Dini¹,

Portolés-Comeras²,

Nin-Guerrero³

et al. 2011

VoIP Technologies

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IntroductionVoice over Internet Protocol (VoIP) technology has become a potential alternative to and also a supplement of the traditional telephony systems over the Public Switched Telephone Network (PSTN), providing a versatile, flexible and cost-effective solution to speech communications. VoIP allows the transmission of voice signals from one party to another one digitally, i.e., the analog voice signal is coded into small packets of digital data and sent over a network. The traditional telephone network, PSTN, uses the circuit switching technique, in which the network establishes a dedicated end-to-end connection between two hosts. The resources needed to support the communication between these end systems are reserved for the whole duration of the communication, so as to guarantee a given quality of the communication. The main drawback of circuit switching is its lack of flexibility due to the fact that dedicated circuits are idle during silent periods and thus network resources are wasted during these contemplation periods. Unlike PSTN, VoIP networks use packet switching, which sends digitized voice data packets over the networks using many possible paths. The packets are reassembled at their destination to generate the voice signals. Network resources are not reserved in VoIP networks, i.e. voice packets are sent into the network without reserving any bandwidth. On the one hand this method provides more flexibility to the network but, on the other hand, it suffers from congestions. Voice applications are delay intolerant services, therefore voice quality at the end host is not guaranteed in VoIP networks. Nowadays, the pervasiveness of WLAN networks together with the spread of VoIP capable wireless devices has motivated an extensive use of VoIP applications over WLAN networks. However, the interaction between these two technologies (VoIP and WLAN) is still not well understood and has received much attention from the research community during recent years. When the VoIP communication has to travel through a WLAN link congestion problems are hardened due to the shared nature of radio medium, the error prone channel and the limited bandwidth of the link, which can cause a further degradation of the voice quality.

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Section: Impact Of the Number Of Hops On A Single-flow Voip Qualitymentioning

confidence: 99%

Experimental Characterization of VoIP Traffic over IEEE 802.11 Wireless LANs

Dini¹,

Portolés-Comeras²,

Nin-Guerrero³

et al. 2011

VoIP Technologies

View full text Add to dashboard Cite

show abstract

“…The idea of collision domain has stemmed from a paper by Jangeun et al [2]. Authors introduced the concept of collision domain for predicting the capacity of WMNs, wherein a unidirectional traffic from nodes to gateways on the network is assumed and the capacity of a WMN is estimated.…”

Section: Collision Domain Loadmentioning

confidence: 99%

“…In a backbone WMN, traffic is mostly from gateways to nodes (download traffic). In the following we introduce CD [2] with certain changes to have it well-matched to the characteristics of WMNs infrastructure.…”

Section: Collision Domain Loadmentioning

confidence: 99%

“…In this paper, we introduce a new metric called the Collision Domain (CD). In [2], CD is introduced as a tool for estimating the capacity of WMNs. It is shown that with certain modifications, CD can be used as a metric for TC to optimize the WMNs' performance.…”

Section: Introductionmentioning

confidence: 99%

“…In Section 3, CD is firstly introduced (with certain changes to the original definition in [2]) and later the CD based topology control algorithm (CDTC) is presented. In Section 4, the simulation results are given, and finally the paper is concluded in Section 5.…”

Section: Introductionmentioning

confidence: 99%

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An Incremental Topology Control Algorithm for Wireless Mesh Networks

Malekesmaeili

Soltan

Shiva

2007

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Abstract. Wireless Mesh Networks (WMNs) with a promising future in wireless backhauling applications have attracted the attention of many network research centers and academic researches. High throughput and low delay as essential requirements of a wireless back-bone network demand new topology control algorithms as well as new optimization metrics. In this paper, a topology control algorithm compliant with the structure of WMNs is proposed, as well as a new metric combining the characteristics of different network layers. The proposed metric is compared with the conventional ones such as distance and interference where even an increase of over 100% in the capacity of the network is presented by applying this metric.

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The nominal capacity of wireless mesh networks

Cited by 409 publications

References 14 publications

Experimental Characterization of VoIP Traffic over IEEE 802.11 Wireless LANs

Experimental Characterization of VoIP Traffic over IEEE 802.11 Wireless LANs

An Incremental Topology Control Algorithm for Wireless Mesh Networks

Quality of Service in Mesh Networks

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