The availability and reliability of wireless multi-hop networks with stochastic link failures

Egeland, Geir; Engelstad, Paal E.

doi:10.1109/jsac.2009.090910

Cited by 76 publications

(49 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Not much published work relates directly to the modeling of apparent link-failures caused by loss of beacons. In Egeland & Engelstad (2009) the reliability and availability of a set of mesh topologies are studied using both a distance-dependent and a distance-independent link-existence model, but the effects of beacon-based link maintenance and hidden nodes are ignored. Here it is assumed that apparent link-failures are a result of radio-induced interference only.…”

Section: Related Workmentioning

confidence: 99%

The Performance of Wireless Mesh Networks with Apparent Link Failures

Egeland¹,

Engelstad²,

Li³

2011

Wireless Mesh Networks

View full text Add to dashboard Cite

Section: Related Workmentioning

confidence: 99%

The Performance of Wireless Mesh Networks with Apparent Link Failures

Egeland¹,

Engelstad²,

Li³

2011

Wireless Mesh Networks

View full text Add to dashboard Cite

“…(8). The k-terminal availability based on an undirectional average link-failure probability is given by:…”

Section: Algorithm 2 N (G)mentioning

confidence: 99%

“…Also, a more dense topology provides a two-sided advantages over a sparse topology. First, more redundant links will in general improve the availability [8]. Second, a dense topology which is more connected, will have less nodes affected by apparent link-failures, as shown in Fig 6-7, thus contributing to an increased availability.…”

Section: B Evaluation By Examplementioning

confidence: 99%

See 1 more Smart Citation

The reliability performance of wireless multi-hop networks with apparent link-failures

Egeland

Paal

2010

IEEE Local Computer Network Conference

View full text Add to dashboard Cite

Abstract-The links in an ad hoc or wireless mesh network are normally kept alive by the exchange of beacons between neighboring nodes. These beacons are prone to collisions with traffic from hidden nodes. If several beacons are lost due to overlapping transmissions, the node expecting the beacons erroneously assumes that the link is down. This is called an apparent link-failure. This paper provides an analytical model of the apparent link-failure probability in a wireless mesh network. In addition, an upper and lower bound for the model is presented and applied in a reliability analysis of wireless mesh networks.

show abstract

“…In CSMA/CA, a binary exponential backoff algorithm is being employed and with a fixed contention window (CW), the channel is not used efficiently and effectively. Also to meet the increasing user demand for multimedia applications, an enhanced backoff mechanism has to be incorporated to maintain the throughput and to reduce the delay of the network [9]- [10]. In this paper, we propose a dynamic CW based access mechanism and our proposed algorithm reduces the collision rate and wasted idle time which in turn increases the MAC throughput and can provide multimedia application even under worst channel conditions.…”

mentioning

confidence: 99%

A Novel Backoff Algorithm with QoS Support in Heterogeneous Wireless Networks

Anbazhagan¹

2012

IJIEE

View full text Add to dashboard Cite

Abstract-The main objective of the future networks is to provide users with always best connectivity through available different access networks. Wireless convergence has emerged as a multidimensional concept that combines networks, applications, user interfaces and management, which aimed at supporting voice, data and multimedia over IP-based networks. In this paper, we model the end-to-end quality of service (QoS) provisioning mechanisms in the wireless local area network (WLAN) and worldwide interoperability for microwave access networks (WiMAX) interworking network. For the end to end QoS guaranteed service, we make changes to multiple access protocol. The media access control (MAC) analysis using hybrid protocol based on virtual slot multiple access (VSMA) with a novel backoff mechanism is extended to the heterogeneous networks and its throughput and delay characteristics are analyzed. By the simulation results, our proposed protocol can provide the low end to end delay and improved throughput for different traffics, even though the traffic load in the network increases. Especially, the end-to-end delay of the IP based voice is smaller when the QoS parameter mappings are applied to the interworking network.Index Terms-Backoff mechanism, medium access control, WiMAX, WLAN. I. INTRODUCTIONThe advent of ubiquitous computing and the growth of portable computing devices have raised the importance of mobile and wireless networking. With the rapid growth of the Internet and interactive facilities of multimedia-based services, the current wireless technology is flourishing in every aspect of human life ranging from home, education, medicine, e-commerce and m-commerce. Today, almost every network technology is prepared or even explicitly designed to transport IP-packets. To meet the ever increasing consumer demands the mobile networks have evolved from first generation (1G) to fourth generation (4G) [1].In order to ensure consistent user experience across heterogeneous wireless networks, the main challenge is to provide end-to-end QoS and to optimize transmission of all data, voice, and video applications to and among end users. The performance needs of applications are characterized by four key parameters: bandwidth, packet loss, delay, and jitter (i.e., delay variation), which determine the QoS.Overall, the needs of the distinct applications are different with respect to QoS. For example, some popular data applications (such as e-mail and Web access) require low to Manuscript received February 15, 2012; revised April 25, 2012. The authors are with the Department of Electronics Engineering, School of Engineering and Technology, Pondicherry Central University, Puducherry, INDIA (e-mail: rajeshatnet@gmail.com; rnakeeran @ pec.edu). medium bandwidth and are quite relaxed as far as the delay and jitter are concerned. On the other hand, Video-on-Demand (VoD) flows have relaxed requirements on delay, but they do need high bandwidth and cannot tolerate much packet loss or jitter. Voice over IP (VoIP), while tolerating som...

show abstract

The availability and reliability of wireless multi-hop networks with stochastic link failures

Cited by 76 publications

References 15 publications

The Performance of Wireless Mesh Networks with Apparent Link Failures

The Performance of Wireless Mesh Networks with Apparent Link Failures

The reliability performance of wireless multi-hop networks with apparent link-failures

A Novel Backoff Algorithm with QoS Support in Heterogeneous Wireless Networks

Contact Info

Product

Resources

About