skip to main content
10.1145/2107502.2107509acmconferencesArticle/Chapter ViewAbstractPublication PagesmobihocConference Proceedingsconference-collections
research-article

OmniVoice: a mobile voice solution for small-scale enterprises

Published: 17 May 2011 Publication History

Abstract

We consider the problem of providing mobility support for Voice-over-IP (VoIP) traffic in small-scale enterprises. There is considerable interest in providing on-the-go support for VoIP through the use of WiFi-enabled smart phones. However, existing solutions either do not support client mobility or require client modifications, making them difficult to deploy in practice.
In this paper, we present OmniVoice, an 802.11 compliant solution that supports mobility for VoIP traffic without any client modifications. To effectively support such traffic, OmniVoice eliminates client handoff delays and manages interference from non-VoIP background traffic. It achieves this by using (a) a single-channel WLAN design and (b) a lightweight central controller for scheduling non-interfering AP-to-client transmissions and dynamically associating clients. The controller minimizes interference with the help of an interference map that models potential exposed and hidden terminal conflicts in the WLAN, while allowing for the serialization of transmissions that would otherwise compete for medium access. We have implemented and extensively evaluated OmniVoice on a 40 node wireless testbed. OmniVoice meets the QoS requirements for VoIP in all operating scenarios and is unaffected by interference from non-VoIP traffic. In particular, OmniVoice provides 100% greater throughput and 130% greater uninterrupted connectivity time to mobile VoIP users as compared to an off-the-shelf 802.11 solution.

References

[1]
A Total Cost of Ownership Analysis of the Meru Networks Virtual Cell Wireless LAN Architecture. http://www.merunetworks.com/technology/TCO_WP-20080326.pdf.
[2]
Aruba Networks: Advanced RF Management for Wireless Grids. http://www.arubanetworks.com/pdf/rf-for-grids.pdf.
[3]
MAC Enhancements for Quality of Service. http://grouper.ieee.org/groups/802/11/Reports/tge_update.htm.
[4]
Meru Networks. http://www.merunetworks.com.
[5]
VoIPTroubleShooter - Online Diagnostic Tools for Network Managers. http://www.voiptroubleshooter.com/problems/delay.html.
[6]
Extricom Inc., Wireless LAN Switch DataSheet, 2005. http://www.extricom.com/imgs/Uploads/PDF/SWDataSheet.pdf.
[7]
N. Ahmed, U. Ismail, S. Keshav, and K. Papagiannaki. Online Estimation of RF Interference. In ACM CoNEXT, 2008.
[8]
Y. Amir, C. Danilov, M. Hilsdale, R. Musaloiu-Elefteri, and N. Rivera. Fast handoff for seamless wireless mesh networks. In ACM MobiSys, 2006.
[9]
A. Balasubramanian, R. Mahajan, A. Venkataramani, B. N. Levine, and J. Zahorjan. Interactive wifi connectivity for moving vehicles. In ACM Sigcomm, 2008.
[10]
R. O. Baldwin, I. Nathaniel J. Davis, S. F. Midkiff, and R. A. Raines. Packetized voice transmission using RT-MAC, a wireless real-time medium access control protocol. ACM Mobile Computing and Communications Review, 2001.
[11]
Y. Bejerano and R. Bhatia. MiFi: A Framework for Fairness and QoS Assurance in Current IEEE 802.11 Networks with Multiple Access Points. In IEEE infocom, 2004.
[12]
V. Bharghavan. Performance evaluation of algorithms for wireless medium access. Computer Performance and Dependability, 1998.
[13]
R. Bolla, R. Rapuzzi, and M. Repetto. On the effectiveness of ieee 802.11e implementations in real hardware. In ISWCS, pages 303--307, 2009.
[14]
R. G. Cole and J. H. Rosenbluth. Voice over ip performance monitoring. SIGCOMM Comput. Commun. Rev., 31(2):9--24, 2001.
[15]
S. Garg and M. Kappes. An experimental study of throughput for UDP and VoIP traffic in IEEE 802.11b networks. In WCNC, 2003.
[16]
U. Ismail. Virtual PCF: Improving VoIP over WLAN performance with legacy clients, Master's Thesis, University of Waterloo (UW). 2009.
[17]
A. Kashyap, S. Ganguly, S. Das, and S. Banerjee. Voip on wireless meshes: Models, algorithms and evaluation. In IEEE Infocom, 2007.
[18]
V. Mhatre and K. Papagiannaki. Using smart triggers for improved user performance in 802.11 wireless networks. In ACM MobiSys, 2006.
[19]
A. Mishra, M. ho Shin, and W. A. Arbaugh. Context caching using neighbor graphs for fast handoffs in a wireless network. In IEEE Infocom, 2004.
[20]
D. Murray, T. Koziniec, and M. Dixon. An analysis of handoff in multi-band 802.11 networks. In MASS, pages 1--10, 2007.
[21]
R. Murty, J. Padhye, R. Chandra, A. Wolman, and B. Zill. Designing high performance enterprise Wi-Fi networks. In NSDI, 2008.
[22]
R. Murty, J. Padhye, A. Wolman, and M. Welsh. Dyson: An Architecture for Extensible Wireless LANs. In USENIX, 2010.
[23]
J. Padhye, S. Agarwal, V. Padmanabhan, L. Qiu, A. Rao, and B. Zill. Estimation of Link Interference in Static Multi-hop Wireless Networks. In IMC, 2005.
[24]
I. Ramani and S. Savage. SyncScan: Practical Fast Handoff for 802.11 Infrastructure Networks. In IEEE Infocom, 2005.
[25]
M. Shin, A. Mishra, and W. A. Arbaugh. Improving the Latency of 802.11 hand-offs using Neighbor Graphs. In ACM MobiSys, 2004.
[26]
V. Shrivastava, N. Ahmed, S. Rayanchu, S. Banerjee, S. Keshav, K. Papagiannaki, and A. Mishra. CENTAUR: Realizing the Full Potential of Centralized WLANs through a Hybrid Data Path. In ACM MobiCom, 2009.
[27]
K. Sundaresan and K. Papagiannaki. The need for cross-layer information in access point selection algorithms. In ACM IMC, 2006.
[28]
P. Thornycroft. The all-wireless workplace is now open for business: Using 802.11n as your primary network LAN deployments, Technical Report, Aruba Networks. 2007.
[29]
H. Velayos and G. Karlsson. Techniques to reduce the ieee 802.11b handoff time. In ICC, 2004.
[30]
P. Verkaik, Y. Agarwal, R. Gupta, and A. Snoeren. SoftSpeak: Making VoIP Play Fair in Existing 802.11 Deployments. In NSDI, 2009.

Cited By

View all
  • (2018)Smartphone Applications Testbed Using Virtual RealityProceedings of the 15th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services10.1145/3286978.3287028(422-431)Online publication date: 5-Nov-2018
  • (2017)A crowdsourcing and simulation based approach for fast and accurate Wi-Fi radio map construction in urban environment2017 IFIP Networking Conference (IFIP Networking) and Workshops10.23919/IFIPNetworking.2017.8264841(1-9)Online publication date: Jun-2017
  • (2015)SWIMMING: Seamless and Efficient WiFi-Based Internet Access from Moving VehiclesIEEE Transactions on Mobile Computing10.1109/TMC.2014.234165214:5(1085-1097)Online publication date: 1-May-2015
  • Show More Cited By

Index Terms

  1. OmniVoice: a mobile voice solution for small-scale enterprises

      Recommendations

      Comments

      Information & Contributors

      Information

      Published In

      cover image ACM Conferences
      MobiHoc '11: Proceedings of the Twelfth ACM International Symposium on Mobile Ad Hoc Networking and Computing
      May 2011
      269 pages
      ISBN:9781450307222
      DOI:10.1145/2107502
      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]

      Sponsors

      Publisher

      Association for Computing Machinery

      New York, NY, United States

      Publication History

      Published: 17 May 2011

      Permissions

      Request permissions for this article.

      Check for updates

      Author Tags

      1. VoIP
      2. enterprises
      3. interference
      4. mobility

      Qualifiers

      • Research-article

      Conference

      MobiHoc '11
      Sponsor:

      Acceptance Rates

      Overall Acceptance Rate 296 of 1,843 submissions, 16%

      Contributors

      Other Metrics

      Bibliometrics & Citations

      Bibliometrics

      Article Metrics

      • Downloads (Last 12 months)1
      • Downloads (Last 6 weeks)0
      Reflects downloads up to 27 Jan 2025

      Other Metrics

      Citations

      Cited By

      View all
      • (2018)Smartphone Applications Testbed Using Virtual RealityProceedings of the 15th EAI International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services10.1145/3286978.3287028(422-431)Online publication date: 5-Nov-2018
      • (2017)A crowdsourcing and simulation based approach for fast and accurate Wi-Fi radio map construction in urban environment2017 IFIP Networking Conference (IFIP Networking) and Workshops10.23919/IFIPNetworking.2017.8264841(1-9)Online publication date: Jun-2017
      • (2015)SWIMMING: Seamless and Efficient WiFi-Based Internet Access from Moving VehiclesIEEE Transactions on Mobile Computing10.1109/TMC.2014.234165214:5(1085-1097)Online publication date: 1-May-2015
      • (2015)Enabling TDMA for today's wireless LANs2015 IEEE Conference on Computer Communications (INFOCOM)10.1109/INFOCOM.2015.7218521(1436-1444)Online publication date: Apr-2015
      • (2015)Wi-FM: Resolving Neighborhood Wireless Network Affairs by Listening to Music2015 IEEE 23rd International Conference on Network Protocols (ICNP)10.1109/ICNP.2015.52(43-53)Online publication date: Nov-2015
      • (2015)Experimenting With Commodity 802.11 Hardware: Overview and Future DirectionsIEEE Communications Surveys & Tutorials10.1109/COMST.2015.241749317:2(671-699)Online publication date: 1-Apr-2015
      • (2013)DOMINOProceedings of the ninth ACM conference on Emerging networking experiments and technologies10.1145/2535372.2535401(381-392)Online publication date: 9-Dec-2013
      • (2013)Evaluation on enterprise WLAN techniques2013 Fourth International Conference on the Network of the Future (NoF)10.1109/NOF.2013.6724525(1-3)Online publication date: Oct-2013
      • (2013)Connections analysis of voice traffic over MANETs and their impact on delay variation2013 IEEE Symposium on Computers and Communications (ISCC)10.1109/ISCC.2013.6755033(000717-000723)Online publication date: Jul-2013

      View Options

      Login options

      View options

      PDF

      View or Download as a PDF file.

      PDF

      eReader

      View online with eReader.

      eReader

      Figures

      Tables

      Media

      Share

      Share

      Share this Publication link

      Share on social media