Article

Seeking VoIP QoS in physical space

Authors:

Robert A. Malaney,

Ernesto Exposito,

Xun WeiAuthors Info & Claims

WMASH '05: Proceedings of the 3rd ACM international workshop on Wireless mobile applications and services on WLAN hotspots

Pages 23 - 32

https://doi.org/10.1145/1080730.1080735

Published: 02 September 2005 Publication History

Abstract

In this report we introduce a "QoS Seeker" system for VoIP over 802.11b. QoS Seeker addresses the realistic situation where the QoS delivered to an end user's wireless VoIP application is a complex function of location and time. It attempts to dynamically inform the user of the location he should go to in order to obtain the optimal QoS for the current VoIP connection. To achieve its goals QoS Seeker continuously collects position information and VoIP QoS metrics - such as packet loss, packet delay, and received signal strength, from all connected users. This information is coupled to adaptive prediction technology in order to predict the future QoS metrics at all locations within the area spanned by the wireless network. We present results from various experiments of this system, where the positioning information is obtained from GPS devices embedded on mobile laptop systems and smaller hand-held devices. We also present simulations of a large scale QoS Seeker system which determines the conditions under which QoS Seeker would not function usefully. The effect of realistic position errors are also investigated on both real data and simulated data, and the usefulness of the predictive algorithms embedded within QoS Seeker are analyzed. Both the experiments and simulations show the viability and usefulness of the QoS Seeker system for VoIP applications in a wide range of circumstances.

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E. Exposito, R. A. Malaney, X.Wei, and Dao Trong Nghia, "Using the XQoS Platform for designing and developing the QoS-Seeker System", 3rd International IEEE Conference on Industrial Informatics (INDIN), Perth, Australia, 2005.

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Digital Library

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Cited By

Zawar Shah Malaney R(2006)Particle Filters and Position Tracking in Wi-Fi Networks2006 IEEE 63rd Vehicular Technology Conference10.1109/VETECS.2006.1682897(613-617)Online publication date: 2006
https://doi.org/10.1109/VETECS.2006.1682897
Nghia T. Dao Malaney RExposito EXun Wei (2005)Differential VoIP service in Wi-Fi networks and priority QoS mapsGLOBECOM '05. IEEE Global Telecommunications Conference, 2005.10.1109/GLOCOM.2005.1578241(2653-2657)Online publication date: 2005
https://doi.org/10.1109/GLOCOM.2005.1578241
Malaney RExposito EWei XNghia D(2005)Predicting Location-Dependent QoS for Wireless NetworksLocation- and Context-Awareness10.1007/11426646_30(328-340)Online publication date: 2005
https://doi.org/10.1007/11426646_30

Index Terms

Seeking VoIP QoS in physical space
1. Networks
  1. Network architectures

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Published In

cover image ACM Conferences

WMASH '05: Proceedings of the 3rd ACM international workshop on Wireless mobile applications and services on WLAN hotspots

September 2005

128 pages

ISBN:1595931430

DOI:10.1145/1080730

General Chair:
Sunghyun Choi
Seoul National University, Korea
,
Program Chairs:
Millind M. Buddhikot
Lucent Bell Labs
,
Renato Lo Cigno
University of Trento, Italy

Copyright © 2005 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 02 September 2005

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WMASH05

Sponsor:

WMASH05: The Second ACM International Workshop on Wireless Mobile Applications and Services on WLAN Hotspots ( co-located with Mobicom 2005 Conference )

September 2, 2005

Cologne, Germany

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Cited By

Zawar Shah Malaney R(2006)Particle Filters and Position Tracking in Wi-Fi Networks2006 IEEE 63rd Vehicular Technology Conference10.1109/VETECS.2006.1682897(613-617)Online publication date: 2006
https://doi.org/10.1109/VETECS.2006.1682897
Nghia T. Dao Malaney RExposito EXun Wei (2005)Differential VoIP service in Wi-Fi networks and priority QoS mapsGLOBECOM '05. IEEE Global Telecommunications Conference, 2005.10.1109/GLOCOM.2005.1578241(2653-2657)Online publication date: 2005
https://doi.org/10.1109/GLOCOM.2005.1578241
Malaney RExposito EWei XNghia D(2005)Predicting Location-Dependent QoS for Wireless NetworksLocation- and Context-Awareness10.1007/11426646_30(328-340)Online publication date: 2005
https://doi.org/10.1007/11426646_30

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