| The main aim of this research is to solve how to trace the Mobile Terminal (MT) among Mobile-commerce (M-commerce) and to present a reasonable effective and optimized position strategy with low-consumption, so as to improve the efficiency of resource and the holistic performance of the M-Commerce system.In this paper, basing on intruducing the technology supporting the M-commerce, the M-commerce's emergence and its foreground, we summarize its characteristic and the technic request of M-commerce application; study the rule of MT and bring forward generic model of MT; and simulate the MT crosses the boundary of LAs by computer simulation; during the simulation, we design a method of a mobile acrosses the boundary of LAs in six direction; then, analysis the result from the simulation by Visual C++ 6.0 and get the conclusion: mobile roaming is locality. This conclusion is significant to the design of the location management.Considering the characteristic of M-commerce application and the MT's mobility, we present a position strategy, including Reporting Center Selection, Adaptive Update and Forwarding Pointers. The strategy of Reporting Center Selection is perfect to manage the MT that the trace is aware completely; the trategy of Adaptive Update is effect to manage the MT that the trace is aware mostly; while the trategy of Forwarding Pointers is for the MT that the trace is unkown or difficult to search. They can switch each other, which is an innovative idea. Furthermore, the above-mentioned trategy has much practicability.The position strategy we present in this paper has consult value for the coming M-commerce, at the same time, it also use for referrence for location management in mobile communication system. |
