Intelligent ambient ad hoc networking to support real-time services

Grand, Gwendal Le; Meraihi, Rabah; Tohmé, Samir; Riguidel, Michel

doi:10.1109/vetecf.2003.1286172

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…On the other hand, decentralized control mechanisms do not require any centralized coordinators, so they can be used in any case, including the case where stations are connected with one another ad hoc. There are possible situations where supporting real-time traffic in wireless ad hoc networks is required, including the situation where mobile terminals use real-time applications in wireless ad hoc networks connected to the Internet 12) . Therefore, decentralized control mechanisms are important alternative solutions to support QoS.…”

Section: Introductionmentioning

confidence: 99%

DDFC: Decentralized Delay Fluctuation Control Algorithm for IEEE802.11-based Wireless LANs

Morikawa

Aoyama

2005

ipsjdc

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Our target is to support both small delay and small delay fluctuation of real-time traffic in IEEE802.11-based wireless LANs by using a decentralized manner. Several previous researches which aimed at supporting real-time traffic in IEEE802.11 wireless LANs developed decentralized control mechanisms achieving small delay of real-time traffic by differentiating real-time traffic from non-real-time traffic, but they cannot achieve small delay fluctuation because of the burst feature of the IEEE802.11 backoff mechanism. We propose a decentralized control mechanism for suppressing delay fluctuation in IEEE802.11-based wireless LANs. Our main proposal is a new backoff algorithm, called decentralized delay fluctuation control (DDFC), which can suppress delay fluctuation in a fully decentralized manner. DDFC can be easily used in IEEE802.11-based wireless LANs by replacing the current backoff algorithm of IEEE802.11 with DDFC. We examine the performance of DDFC, which is assumed to be used for real-time traffic in an IEEE802.11-based wireless LAN, by simulation. The results of computer simulation confirm that we can achieve not only small delay but also small delay fluctuation of real-time traffic in IEEE802.11-based wireless LANs by controlling real-time traffic according to DDFC.

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Section: Introductionmentioning

confidence: 99%

DDFC: Decentralized Delay Fluctuation Control Algorithm for IEEE802.11-based Wireless LANs

Morikawa

Aoyama

2005

ipsjdc

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“…The control of best effort traffic to lease bandwidth to real time traffic is also the basis of SWAN (Stateless Wireless Ad Hoc Network) [9]. To summarize, QoS can be provided either at MAC level or IP level ( [12]). The first scheme defines the policy to choose the node that will access the physical medium whereas the second deals with the choice of the current packet to transmit in a node.…”

Section: Introductionmentioning

confidence: 99%

Expedited forwarding for WiFi

Harivelo¹,

Grand²,

Anelli³

et al.

1st International Symposium onWireless Communication Systems, 2004.

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Abstract-It is essential to reserve resources in order toprovide an acceptable quality of service in networks with realtime communication requirements. However, such reserved resources, e.g. bandwidth, may be unused as a consequence of the variations in the actual resource demands. Since bandwidth is scarce in wireless LANs (WLANs), QoS provisioning may be very expensive. Therefore, we propose a new resource management approach leading to a more efficient usage of the network in which communicating stations or end-users dynamically hand over some of the free resources temporarily to the other communication partners. This paper concentrates on two fundamental problems of such a demand-based sharing of resources: the current estimation of resource utilization, and the algorithm to share and redistribute resources with real-time requirements. This approach for resource and traffic management allows one to achieve significantly better utilization of network resources.

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A Robust Service for Delay Sensitive Applications on a WLAN

Harivelo

Anelli

2005

Networking - ICN 2005

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Intelligent ambient ad hoc networking to support real-time services

Cited by 5 publications

References 11 publications

DDFC: Decentralized Delay Fluctuation Control Algorithm for IEEE802.11-based Wireless LANs

DDFC: Decentralized Delay Fluctuation Control Algorithm for IEEE802.11-based Wireless LANs

Expedited forwarding for WiFi

A Robust Service for Delay Sensitive Applications on a WLAN

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