The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON COMMUNICATIONS
Transactions ID Number: 31-305
Full Name: Shih-kai Lee
Position: Assistant Professor
Age: ON
Sex: Male
Address: 135 Yuan Tung Road, Chungli, Taoyuan
Country: TAIWAN
Tel: 03-4638800-7326
Tel prefix: 886
Fax:
E-mail address: sklee@saturn.yzu.edu.tw
Other E-mails: leesks@ethome.com.tw
Title of the Paper: perceptual evalutaion of speech quality for ilbc vocoder with uneven level protection over narrow band msk radio
Authors as they appear in the Paper: Shih-kai Lee, Lu-ping Keng
Email addresses of all the authors: sklee@saturn.yzu.edu.tw
Number of paper pages: 10
Abstract: Narrow band MSK(Minimum Shift Keying) radio is applied for high receiving sensitive wireless communications like ¡§walky-talky¡¨. iLBC (internet Low Bit-rate Codec) is widely used in VoIP (Voice over IP) applications like ¡§Skype¡¨. This paper is concerned with the speech quality by using iLBC in narrow band MSK wireless communication. Several ULP (Uneven Level Protection) strategies to protect different part of iLBC coded payloads are evaluated under AWGN (Additive White Gaussian Noise). We utilize PESQ (Perceptual Evaluation of Speech Quality) to evaluate the perceptual speech quality. Simulation results show that significant improvement of PESQ scores are obtained by using appropriate ULP strategies so that our proposed MSK radio system can also achieve high receiving sensitivity.
Keywords: MSK, iLBC, VoIP, ULP, PESQ.
EXTENSION of the file: .pdf
Special (Invited) Session: This paper is invited by Prof. Nikos E. Mastorakis
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