Precise Admission Control for Bandwidth Reservation in Wireless Mesh Networks

Herms, A.; Ivanov, S.; Lukas, Georg

doi:10.1109/mobhoc.2007.4428639

Cited by 13 publications

(7 citation statements)

References 4 publications

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“…Hence, such admission failures can occur very often, which we also observed in our simulation studies [5].…”

Section: Discussionsupporting

confidence: 77%

“…Our reservation protocol was evaluated using simulation in [5], where we showed its correctness. Another important property is its protocol overhead.…”

Section: Discussion Of Overheadmentioning

confidence: 99%

“…Further, we excluded all approaches that would require modifications in the MAC layer or physical layer and could therefore not be applied to WMNs with off-the-shelf components. In [5] we analysed the correctness of four admission control systems. We observed that they all have difficulties with keeping their distributed view on the bandwidth consumption consistent.…”

Section: Responsementioning

confidence: 99%

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Preventing admission failures of bandwidth reservation in wireless mesh networks

Herms

Lukas

2008

2008 IEEE/ACS International Conference on Computer Systems and Applications

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Quality of Service for wireless mesh networks is an often requested feature for various kinds of applications. A common approach is the hop-by-hop reservation of bandwidth for individual routes. In this paper we address the problems of the reservation on a single hop. In previous works we used simulation studies to show that various existing approaches suffer from inconsistencies that lead to admission failures. In this paper, we discuss the reasons for these failures and present a protocol for preventing them. This allows to significantly increase the reliability of established communication links in WMNs.

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“…Hence, such admission failures can occur very often, which we also observed in our simulation studies [5].…”

Section: Discussionsupporting

confidence: 77%

“…Our reservation protocol was evaluated using simulation in [5], where we showed its correctness. Another important property is its protocol overhead.…”

Section: Discussion Of Overheadmentioning

confidence: 99%

Section: Responsementioning

confidence: 99%

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Preventing admission failures of bandwidth reservation in wireless mesh networks

Herms

Lukas

2008

2008 IEEE/ACS International Conference on Computer Systems and Applications

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“…In wireless mesh networks, it is one of the most influencing factors for the link state. This has been shown in our research in wireless mesh network routing [16][17][18], wireless network simulation and emulation [21]. Other researchers in our group are working on improving the link state model.…”

Section: Link State Modelmentioning

confidence: 84%

Achieving Fault-Tolerant Network Topology in Wireless Mesh Networks

Ivanov¹,

Nett²

2012

Wireless Mesh Networks - Efficient Link Scheduling, Channel Assignment and Network Planning Strategies

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Additional information is available at the end of the chapter http://dx.doi.org/10.5772/50173 IntroductionWireless Mesh Network (WMN) is an ad-hoc network with a fixed network infrastructure (see an example in figure 1). The physical structure of a WMN includes base stations, a backbone and mobile stations. The base stations (also known as mesh routers or mesh points) are static wireless nodes, forming the network infrastructure and providing wireless network access to the mobile stations. The backbone is a wireless ad-hoc network among the base stations. The fixed network infrastructure provides wireless network access to the mobile stations in a service area. Service area is a finite three-dimensional space. The mobile stations are wireless We consider a wireless mesh network which supports a business process and is under the administration of an organization. This is not a MANET (Mobile Ad-hoc Network) consisting of self-dependent mobile nodes, like it is often in the literature. The organization has control over the network infrastructure and aims at providing radio coverage and connectivity in a clearly defined service area. The management appliance is a central instance for basic configuration and diagnosis of the WMN, including topology monitoring, protocol settings, traffic management, etc.Radio coverage and connectivity are basic services of a wireless mesh network which are required for communication. Radio coverage ensures that the mobile stations can access the network infrastructure (backbone) while they are located or moving in the service area. Connectivity ensures that the topology of the backbone is connected. Radio coverageThe service radio coverage is correct, if the service area is covered by the base stations. The service area is covered, if the unification of radio cells of all base stations contains the whole service area. The radio cell of a base station is a part of the space around it, in which a mobile station observes the base station with a radio signal strength sufficient for communication.The sufficient radio signal strength in the service area is a basic requirement for the mobile stations to be able to access the WMN. The radio coverage service ensures this sufficient signal strength in the service area. Service location is a point of the service area, specified by its coordinates. A service location is covered, if the unification of radio cells of all base stations contains the service location. ConnectivityThe service connectivity is correct, if the backbone graph is connected. The backbone graph is a graph with the base stations as vertices and the routing layer links among them as edges. A link exists if two wireless devices can communicate through the wireless medium obeying some qualitative parameters (see section 4.3 for more information). The backbone graph represents the network topology at the routing layer. This graph is connected, if a path (a sequence of edges) exists between every two vertices. A connected backbone graph means a connected routing layer topology whic...

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“…As for connection admission control, not much work [29,30] has been done to provide both QoS and GoS provisions for heterogenous traffics in WMNs. In [31], a joint centralized scheduling and time slot allocation based admission control algorithm is proposed for WiMAX networks, which allows admitting a flow if extra unused slots are sufficient to satisfy bandwidth requirement.…”

Section: Related Workmentioning

confidence: 99%

Cross-Layer Design for QoS in Wireless Mesh Networks

Liu

Gkelias

Hou

et al. 2009

Wireless Pers Commun

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Cross-layer design for quality of service (QoS) in wireless mesh networks (WMNs) has attracted much research interest recently. Such networks are expected to support various types of applications with different and multiple QoS and grade-of-service (GoS) requirements. In order to achieve this, several key technologies spanning all layers, from physical up to network layer, have to be exploited and novel algorithms for harmonic and efficient layer interaction must be designed. Unfortunately most of the existing works on cross-layer design focus on the interaction of up to two layers while the GoS concept in WMNs has been overlooked. In this paper, we propose a unified framework that exploits the physical channel properties and multi-user diversity gain of WMNs and by performing intelligent route selection and connection admission control provides both QoS and GoS to a variety of underlying applications. Extensive simulation results show that our proposed framework can successfully satisfy multiple QoS requirements while it achieves higher network throughput and lower outage as compared to other scheduling, routing and admission control schemes.

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Precise Admission Control for Bandwidth Reservation in Wireless Mesh Networks

Cited by 13 publications

References 4 publications

Preventing admission failures of bandwidth reservation in wireless mesh networks

Preventing admission failures of bandwidth reservation in wireless mesh networks

Achieving Fault-Tolerant Network Topology in Wireless Mesh Networks

Cross-Layer Design for QoS in Wireless Mesh Networks

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