Adaptive Packet Loss Concealment Mechanism For Wireless Voice Over Ip
Various packet loss concealment (PLC) techniques exist for packet voice communication. A wireless VoIP simulation methodology is developed for analysing the tradeoff between PLC methods performance and complexity. We evaluate the quality of the reconstructed speech under different packet loss rates for various receiver-based recovery methods individually and propose an adaptive mechanism that can select the PLC method with the minimal complexity in accordance with different packet loss rates encountered. Simulation results have shown that the adaptive PLC scheme delivers acceptable speech quality across varying packet loss rates.
KeywordsVoice over IP (VoIP) packet loss concealment adaptive mechanism speech quality
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