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Introduction to VoIP. clustering / dispersion → overflow / time-outs Trade-offs management: Delay ↔ Loss. Project Goals. Implementation of VoIP CRN Model using MATLAB @ Executing and Performance studying. Network & Codec. Jitter Buffer. Voice Quality. Loss. Delay. λ. K.
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Introduction to VoIP • clustering / dispersion → overflow / time-outs • Trade-offs management: Delay ↔ Loss
Project Goals • Implementation of VoIP CRNModel usingMATLAB@ • Executing and Performance studying
Network & Codec Jitter Buffer Voice Quality Loss Delay λ K TDelay jitter buffer jitter buffer codec codec codec codec System’s Model E-model R-Factor MOS • Network conditions • Delay • Loss • Codec characteristics • Equipment impairment • Loss robustness jitter buffer controller
Network & Codec Jitter Buffer Voice Quality jitter buffer jitter buffer codec codec codec codec CRN System’s Model E-model R-Factor MOS jitter buffer controller CRN
Network & Codec Jitter Buffer Voice Quality Loss Delay λ K TDelay jitter buffer jitter buffer codec codec codec codec CRN System’s Model E-model R-Factor MOS • Network conditions • Delay • Loss • Codec characteristics • Equipment impairment • Loss robustness C(t) jitter buffer controller
Network Simulator Scenarios generator Network simulator Adaptive Jitter Buffer MOS Channel State Simulator Performance Studying
