Advantages of Optimal Longcut Route for Wireless Mobile Users

In the future mobile network era and even now, we are faced with more diverse user and social needs for the network. These needs are changing the priorities of necessities on network and also making more practical evaluations indispensable. In general, people take a "shortcut" route when they move from one location to another. However, this will not necessarily be true for future mobile users. A "longcut" route might be highly preferable, depending on their applications that requires longlasting network connectivity or high data rate. Here, the longcut route is the optimal route for maximizing a user's satisfaction, e.g., by considering tradeoffs between the gain in transmission performance and degradation in trip time. This paper proposes a longcut route concept and evaluates its effectiveness in realistic environments by computer simulation using the network simulator ns-2, from the viewpoints of start/goal node locations, the speed of mobile nodes, the number of base stations, and the density of base stations. The results show that even in practical environments the longcut route can provide us with much capacity gain in return for a slightly longer trip time.