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Evaluating voice traffic requirements on IEEE 802.11 ad hoc networks

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Abstract

This paper analyzes voice transmission capacity on IEEE 802.11 ad hoc networks by performing simulations related to delay, jitter, loss rate, and consecutive losses. We evaluate the influence of mobility on the number of sources transmitting voice. Another issue addressed in this paper is the effect of node density on voice transmission. Our simulation model has allowed us to identify the main reasons for voice degradation in ad hoc networks. Results show that voice transmission capacity degrades with mobility and network load, being more sensitive to high mobility due to link failures. The network capacity can easily experience a decrease of up to 60% on the number of voice transmissions on a multi-hop environment. We also show that node density is also relevant when considering voice transmission on multi-hop networks.

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References

  1. Köpsel A, Ebert J-P, Wolisz A (2000) A performance comparison of point and distributed coordination function of an IEEE 802.11 WLAN in the presence of real-time requirements. Workshop on Mobile Multimedia Communications (MoMuC2000), Tokyo, Japan

  2. Köpsel A, Wolisz A (2001) Voice transmission in an IEEE 802.11 WLAN based access network. Workshop on Wireless Mobile Multimedia (WoWMoM’2001), Rome, Italy

  3. Garg S, Kappes M (2003) An experimental study of throughput for UDP and VoIP traffic in IEEE 802.11b networks. IEEE Wireless Communications and Networking Conference, pp 1748–1753

  4. Hole DP, Tobagi FA (2004) Capacity of an IEEE 802.11b wireless LAN supporting VoIP. IEEE International Conference on Communications, pp 196–201

  5. Deng J, Chang RS (1999) A priority scheme for IEEE 802.11 DCF access method. IEICE Trans Commun E82-B(1):96-102

    Google Scholar 

  6. Armenia S, Galluccio L, Leonardi A, Palazzo S (2005) Transmission of VoIP traffic in multi-hop ad hoc IEEE 802.11b networks: Experimental results. Proceedings of the First International Conference on Wireless Internet, pp 148–155

  7. Velloso PB, Rubinstein MG, Duarte OCMB (2003) Analyzing voice transmission capacity on ad hoc networks. ICCT, Beijing

    Google Scholar 

  8. Velloso PB, Rubinstein MG, Duarte OCMB (2003) The effect of mobility on voice transmission capacity in mobile ad hoc networks. LANOMS, Iguassu Falls, Brazil

    Google Scholar 

  9. ITU-T (1993) One-way transmission time, Recommendation G.114

  10. IEEE (1999) IEEE standard 802.11, Wireless LAN medium access control (MAC) and physical layer (PHY) specifications. IEEE, New York

    Google Scholar 

  11. Fall K, Varadhan K (2007) The ns Manual. University of California, Berkeley, LBL, USC/ISI, and Xerox PARC

    Google Scholar 

  12. Johnson D, Maltz D, Broch J (2001) DSR: The Dynamic Source Routing protocol for multi-hop wireless ad hoc networks. Ad Hoc Networking, ch. 5. Addison-Wesley, Boston, pp 139–172

    Google Scholar 

  13. Brandy P (1965) A technique for investigating on/off patterns of speech. Bell Labs Tech J 44(1):1–22

    Google Scholar 

  14. Markopoulou A, Tobagi F, Karam M (2002) Assessment of VoIP quality over internet backbones. IEEE INFOCOM, New York

    Google Scholar 

  15. Das SR, Perkins CE, Royer EM (2000) Performance comparison of two on-demand routing protocols for ad hoc networks. IEEE INFOCOM, Tel Aviv, pp 3–12

    Google Scholar 

  16. Holland G, Vaidya NH (1999) Analysis of TCP performance over mobile ad hoc networks. ACM MobiCom, Seattle

    Google Scholar 

  17. Costa LHMK, Amorim MD, Fdida S (2004) Reducing latency and overhead of route repair with controlled flooding. ACM/Kluwer Wireless Networks 10(4):347–358

    Article  Google Scholar 

Download references

Acknowledgments

The authors would like to thank CNPq, CAPES, FAPERJ, COFECUB, and FUJB.

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Correspondence to Marcelo G. Rubinstein.

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Velloso, P.B., Rubinstein, M.G. & Duarte, O.C.M.B. Evaluating voice traffic requirements on IEEE 802.11 ad hoc networks. Ann. Telecommun. 63, 321–329 (2008). https://doi.org/10.1007/s12243-008-0032-7

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  • DOI: https://doi.org/10.1007/s12243-008-0032-7

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