Intel: Using WiMax for VOIP cuts bandwidth usage by 40%

Intel’s researchers in Oregon showed how they cut the amount of bandwidth consumed by voice-over-Internet protocol (VOIP) calls on a WiMax network, which is a long-range version of a typical Wi-Fi wireless network. It can do so by grouping a bunch of VoIP calls together in a kind of group package, deleting the redundant information, and then sending the package out over the Internet. That gets rid of wasted bits associated with individual VoIP calls.

Intel showed that a WiMax cell site could accommodate 216 callers using the technology, compared to just 160 without it. In effect, it cuts the bandwidth usage of the VoIP calls by 40 percent. That’s a big deal because wireless carriers face big problems as revenue from voice calls plummets and costs of delivering data are rising. The WiMax standards group has adopted the technology, and it could be built into the WiMax 802.16m protocol.

Another idea shown by Intel was improving speech recognition accuracy by combining it with face recognition. This might work well in areas such as a kitchen, where giving speech commands might be easier than typing on a keyboard. The computer’s webcam could capture your face movements. If you are looking at the camera and talking, it will start trying to decipher your speech. Then it correlates the sound it hears with the movements of your mouth.

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