Supporting Continuous Mobility through Multi-rate Wireless Packetization
Source: University of Wisconsin
The main interest of the architecture supporting continuous mobility through multi- rate packetization is to give geographical location independence to the WiFi device- users. One can satisfactorily use his or her laptop for a period in one place, then suspend the operation while moving to another place, and again resume the operation in the new location. In the continuous mobility domain the applications continue to use radio interface while in motion. A new software-tool is proposed to improve the performance of the WiFi devices. Multi-rate wireless packets modulate different segments of the same Protocol Data Unit (PDU) at different physical transmission rate rather than modulating the whole PDU using a single rate. This is an effective way to support continuous mobility through the mechanism of multi-rate wireless packetization. For the last few years of technological development a need for handheld WiFi devices such as Voice-over-WiFi phones, WiFi-enabled music players (iTouch Zune) and other WiFi-capable gadgets became prominent. Along with continuous mobility application, the other salient feature of these devices is the applications are real-time and latency- sensitive in the environment. These suggest a faster changing wireless channel as well as its more aggressive adaptation. This is believed to have a considerable impact on the competitiveness of the Wi-Fi product market, and is supposed to have given the market a considerable advantage through products discussed above.