Networking

Performance Analysis of VoIP Codecs over WiMAX Networks

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Executive Summary

Real-time services such as VoIP are becoming popular and are major revenue earners for network service providers. These services no longer confined to the wired domain and extended over wireless networks. Although some of the existing wireless technologies can support some low-band width applications, the bandwidth demands of many multimedia applications exceed the capacity of these technologies. The WiMAX promises to be one of the wireless access technologies capable of supporting very high bandwidth applications. However, there are still many challenges that need to be addressed to provide a steady and good quality voice connection over the best-effort WiMAX network. In This paper, the authors evaluate the performance of different VoIP codecs over the WiMAX network.

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