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Cross-layer design is proposed to facilitate network layer handover in RFC4068 fast handover mobile IPv6. However, when FMIPv6 operation enters into reactive mode or wrong handover anticipation, it will result in significant connection disruption and packet loss. Our research is focused on network layer handover issue based on IEEE 802.16e wireless network. We present an architecture which uses the...
The technology of surface acoustic waves (SAW) is widely used in a number of applications, such as detection of surface cracks or flaws, touch-panels, and SAW filters. The propagation of SAWs on the surface of solid materials has been used to detect hidden cracks or other surface discontinuities in a medium. They are also readily attenuated when a soft object touches the surface of medium. For a piezoelectric...
Many protocols or radio access systems provide some techniques to deal with handover problems. The idea of cross-layer is proposed to facilitate handover across different layers in fast handover mobile IPv6. When FMIPv6 operation enters into reactive mode or wrong handover anticipation, it will result in significant connection disruption and packet loss. This research is focused on layer 3 handover...
The hybrid networks of Wi-Fi and WiMAX networks can provide high data rate and enhanced multimedia services, but it is challenging to obtain optimized handover decision based dynamic QOS information. Users can improve their perceived QOS by using the terminal-controlled handover decision in a single device equipped with multiple radio interfaces. The IEEE 802.21 aims at providing a framework that...
The ultimate goal for wireless services is to provide a seamless and good quality platform for any kind of application. All relevant protocols or radio access systems provide some techniques to deal with handover problems. The idea of cross-layer is proposed to facilitate handover across different layers. Most of previous research in cross-layer architecture uses SNR or RSSI as triggers to anticipate...
A radio-on-fiber (ROF) transport system employing double external light injection techniques to improve systems' performance is proposed and demonstrated. Simultaneously using external light injection techniques to enhance the frequency response of laser diode and increase the saturation output power of semiconductor optical amplifier (SOA), resulting in decreased third order intermodulation distortion...
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