Generic placeholder image

Recent Patents on Computer Science

Author(s): Ravindra Luhach, Chandra K. Jha and Ashish K. Luhach*

DOI: 10.2174/2213275911666181018101737

Cite As
Performance Analysis of QMF Filter Bank For Wireless Voip in Pervasive Environment

Page: [349 - 353] Pages: 5

  • * (Excluding Mailing and Handling)

Abstract

Background: Voice over Internet Protocol (VoIP) has emerged as one of the most significant technology in the field of communication and evolved as a substitute to the conventional communication method as the Public Switched Telephone Network (PSTN). Along with the advantages such as scalability and security, VoIP has some threats such as voice quality and interference that must be dealt with. The voice quality in VoIP is degraded when transmitted over a computer network due to delay, jitter and packet loss etc. Packet loss is one of major reasons for the signal quality degradation.

Objective: In this research article, Quadrature Mirror Filter Bank (QMF) has been implemented in wireless VoIP system to enhance the quality of the signals transmitted.

Results: The performance has been evaluated under varying network conditions of packet loss.

Conclusion: Significant improvement has been observed in the quality of VoIP signal.

Keywords: VoIP, QMF, PSTN, packet loss, MOS, signal quality degradation.

Graphical Abstract

[1]
H.P. Singh, S. Singh, J. Singh, and S.A. Khan, "VoIP: State of art for global connectivity. A critical review", J. Netw. Comput. Appl., vol. 37, pp. 365-379, . [http://dx.doi.org/10.1016/j.jnca.2013.02.026].
[2]
S. Han, S. Jeong, H. Yang, and J. Kim, "Noise reduction for VoIP speech codecs using modified Wiener Filter", In: K. Elleithy, Ed., Advances and Innovations in Systems, Computing Sciences and Software Engineering., Dordrecht: Springer, 2007, pp. 393-397. [http://dx.doi.org/10.1007/978-1-4020-6264-3_68]
[3]
J.C. Bolot, "End-to-end packet delay and loss behavior in the internet", In: Proceedings of ACM Symposium on Communications Architectures, Protocols and Applications, San Francisco, California 1993, pp. 289-298. [http://dx.doi.org/10.1145/166237.166265]
[4]
A.O. Abid Noor, S. Abdul Samad, and A. Hussain, "Improved low complexity noise cancellation technique for speech signals", World Appl. Sci. J., vol. 6, no. 2, pp. 272-278, 2009.
[5]
S.A. Samad, A. Hussain, K.A. Ishak, and A.A. Noor, "Feature Extracting in the presence of Environmental Noise", Using Sub-band Filtering, 2009. In press
[6]
S. Singh, R.K. Sarin, and J. Singh, "Evaluating the perceived voice quality on VOIP network using interpolated FIR filter algorithm", Int. J. Electron., vol. 99, no. 10, pp. 1449-1469, 2012. [http://dx.doi.org/10.1080/00207217.2012.669722].
[7]
H.P. Singh, S. Singh, and J. Singh, "Digital signal processing approach for performance improvement in Vice Over Internet Protocol (VOIP) network", Int. J. Inf. Commun. Technol., no. 1-2, pp. 85-90, 2011.
[8]
H.P. Singh, S. Singh, R.K. Sarin, and J. Singh, "Analysis of FIR interpolation filters for VOIP in noisy environment", In: Proceeding of Second IEEE International Conference on Computational Intelligence, Communication Systems and Networks, Liverpool, UK 2010, pp. 268-73. [https://doi.org/10.1109/CICSyN.2010.69]
[9]
H.P. Singh, S. Singh, and J. Singh, "Real time analysis of VOIP system under pervasive environment through spectral parameters", Int. J. Comput. Appl., vol. 31, no. 2, pp. 1-8, 2011. [https://doi.org/10.5120/3793-5222].
[10]
H.P. Singh, S. Singh, and J. Singh, "Comparison of narrowband and wideband VOIP using TMS320C6713 DSP processor", In: IJCA Proceedings of International Symposium on Devices MEMS, Intelligent Systems & Communication,, vol. 6. . 2011, pp. 25-29.
[11]
J. Singh, S. Singh, and H.P. Singh, "Implementation of FIR Interpolation filter on TMS320C6713 for VOIP Analysis", In: Proceeding of Second IEEE International Conference on Computational Intelligence, Communication Systems and Networks, Liverpool, UK 2010, pp. 289-294. [http://dx.doi.org/10.1109/CICSyN.2010.71]
[12]
J. Zhu, X. She, and L. Chen, "Complementary resource allocation for variable-size VoIP packet in E-UTRA", In: Proceedings of IEEE Conference on Wireless Communications and Networking, Budapest, Hungary 2009, pp. 1298-302. [https://doi.org/10.1109/WCNC.2009.4917635]
[13]
J. Kim, H.W. Lee, W. Ryu, and B.S. Lee, "Voice quality guaranteed service over best-effect IP", In: Proceedings of Fifth IEEE Annual International Conference on Pervasive Computing and Communications, p. 2007, pp. 614-617..
[14]
Y. Bai, "A study for providing better quality of service to VoIP users", In: Proceedings of the IEEE 20th International Conference on Advanced Information Networking and Applications, 2006, pp. 799-804. [http://dx.doi.org/10.1109/AINA.2006.60]
[15]
Reduced Complexity 8 Kbit/s CS-ACELP Speech Codec. International Telecommunication Union. [Available from:], https://www. itu.int/rec/T-REC-G.729
[16]
Mandatory Speech Codec Processing Functions:, Adaptive Multi-Rate (AMR) Speech Codec: Transcoding Functions., GPP Mobile Competence Centre, 2012. [Available from: https://www. researchgate.net/publication/237067932]
[17]
Speech Codec Speech Processing Functions; Adaptive Multi-Rate- Wideband (AMR-WB) Speech Codec; Transcoding Functions. Mobile Competence Centre, France. GPP Mobile Competence Centre. [Available from:, https://www.tech-invite.com/3m26/tinv-3gpp-26-190.html
[18]
O. Hohlfeld, G. Rudiger, and G. Halblinger, "Packet loss in real-time services: Markovian models generating QoE impairments", In: Proceedings of the 16th International Workshop on Quality of Service, Enschede, Netherlands 2008, pp. 239-248. [https://doi.org/10.1109/IWQOS.2008.33]
[19]
J.H. Choi, S. Seol, and J.H. Chang, "A study on voice communication quality criteria under mobile-VoIP environments", J. Acoust. Soc. Korea, vol. 28, no. 2E, pp. 1-8, 2009.
[20]
M. Sharma, H.P. Singh, J. Singh, and M. Bala, "Efficient packet loss concealment for narrowband wireless VoIP system", Int. J. Sci. Emerg. Technol. Latest Trends, vol. 15, no. 1, pp. 12-15, 2014.
[21]
Open Speech Repository. [Available from:, http://www. voiptroubleshooter.com/open_speech/
[22]
S. Zeadally, F. Siddiqui, and P. Kubher, "Voice over IP in intranet and Internet environments", IEE Proc. Commun., vol. 151, no. 3, pp. 263-269, 2004. [http://dx.doi.org/10.1049/ip-com:20040284].
[23]
C. Montininy, and T. Aboulnasr, "Improving the performance of ITU-T G.729A for VoIP", In: Proceedings of the IEEE International Conference on Multimedia and Expo, New York, Vol. 1, 2000, pp. 433-436. [http://dx.doi.org/10.1109/ICME.2000.869632]