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DESIGN OF SEAMLESS PROTOCOL SWITCHING LAYER FOR VOICE OVER INTERNET PROTOCOL (VOIP) THAT SWITCHES BETWEEN BLUETOOTH AND IEEE 802.11
Preview AbstractThe capability of seamlessly switching between two communication protocols will be very important for communication devices of the future, since it allows the end users to judiciously use whichever network is appropriate, depending on cost, signal strength or other factors such as the amount of battery life left on the device. This paper presents the groundbreaking idea of a Seamless Protocol Switching Layer (SPSL) on a hardware and software level to solve this problem. In addition, the SPSL concept is implemented by developing a prototype application, a Smart Video Phone, built using Intel XScale-based PXA255 board and ARM Linux as the operating system that can seamlessly switch between IEEE 802.11 and Bluetooth technologies. Experiments show that if the signal of the Bluetooth signal goes below 40%, the switching to Wireless-Fidelity (Wi-Fi) happens if it is available.