Due to the mobility of mobile users, the rate at which mobile users hand-off to neighbor cells in state (0,3,0) is 3 µn, h.
For high-mobility users, the interval might need to be shorter.
As the figure reveals, even in absence of user mobility (0% mobile users), the different invocation strategies on average only achieve 60 65% of the optimal solution.
Furthermore, in the overlaid HetNet deployment of the macro cell and small cell, the main responsibility for the small cells will be the maximum offloading of higher quality of services (QoS) while the macro cell will mainly handle the high-mobility users or the guaranteed lower QoS.
As a result, WLAN will give rise to a higher number of handoff requests for high-mobility users, and the corresponding number of handoff requests of the calls in progress may cause an excessive processing load in the network.
In order to account for environmental and dynamic effects, the wheeled mobility user needs to map the intended trajectory into the virtual world.
Our comparative study confirms that system performance is impacted by a variety of factors such as wireless access methods, mobility, user location, and popularity of the information.
On the other hand, a high mobility user might witness a better, less variable channel than a low mobility user.
Furthermore, considering the cross-tier interferences, the game theory-based power control scheme with convex pricing functions could mitigate the cross-tier interference while protecting the guaranteed users and high-mobility users usually served by the macro cells.
Then, the second step addresses the mitigation of cross-tier interferences while protecting the guaranteed users and high-mobility users usually served by the macrocells.
