Video chat, also
referred to as video telephony or video calls, is the new data hog in current
cellular networks. A simple phone call pales in comparison to a face-to-face
video chat. Recently, group interactive video chat applications have also
emerged. In group video chat, multiple users can see and chat with each other
on a single screen at the same time.
The next generation of
cellular communication needs to endure a higher demand for enhanced real-time
multimedia support to end users. Among interactive video applications, use of
mobile video chat is on the rise in both the enterprise and consumer worlds.
Mobile video chats are resource-constrained and heterogenous with varying
display sizes, processing powers, network conditions, and battery levels, and
pose real-time delivery constraints unlike traditional video streaming
applications.
With the demand for
anywhere any time connectivity for video chat, it becomes quintessential to develop
techniques that adapt to the underlying network, optimize the device
architectures, and provide the best possible video chat experience to end
users. In this article, identification of main limitations and challenges in
mobile video chat is provided. Further discussion of possible solutions and
proposed research directions to making video chat a good experience are
provided.
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