Measurements of an Internet-Enabled Camera

Since the introduction of Internet-enabled devices such as video cameras, phones and PDAs, the bandwidth requirements of each device continue to become more varied. Even devices that provide the same types of functionality tend to use di erent amounts of bandwidth. For example, cameras that use motion-JPEG compression tend to consume more bandwidth than cameras which use MPEG compression. These are implementation choices made by vendors, but ultimately they have an impact on the network trafc created as well as the overall user experience. An example of this dichotomy is that motionJPEG may consume more bandwidth, but it is easily viewed through a modern Web browser. MPEG encoding, while lower bandwidth, generally requires the installation of a separate software/hardware package, sometimes at a cost to the user. In this paper, we will cover the network characteristics of one Internet-enabled device in an attempt to better understand its impact on the network. We will not be looking at how the user