On the Design of Energy‐Efficient Location Tracking Mechanism in Location‐Aware Computing

Abstract

The battery, in contrast to other hardware, is not governed by Moore's Law. In location-aware computing, power is a very limited resource. As a consequence, recently, a number of promising techniques in various layers have been proposed to reduce the energy consumption. The paper considers the problem of minimizing the energy used to track the location of mobile user over a wireless link in mobile computing. Energy-efficient location update protocol can be done by reducing the number of location update messages as possible and switching off as long as possible. This can be achieved by the concept of mobility-awareness we propose. For this purpose, this paper proposes a novel mobility model, called state-based mobility model (SMM) to provide more generalized framework for both describing the mobility and updating location information of complexly moving objects. We also introduce the state-based location update protocol (SLUP) based on this mobility model. An extensive experiment on various synthetic datasets shows that the proposed method improves the energy efficiency by 2 ∼ 3 times with the additional 10% of imprecision cost.

Modelling and Quantitative Analysis of LTRACK–A Novel Mobility Management Algorithm

“…Thus the most important decision of LTRACK, as it is also for all the location tracking-like algorithms, is when to make a normal handover and when to make a tracking handover. In the previous works [15,18,24] the number of handovers to be take was derived from the signalling cost parameters of the network and the mobile movement models. We propose a method using Markov chains that is an alternative way to describe the behavior of these protocols.…”

On Mining Movement Pattern from Mobile Users

“…The tracking location of the mobile user [1] involves the identification of the direction and signal strength from the wireless service station [18,19,20]. A more effective means 70 D. Taniar and J. Goh of tracking the location of a mobile user is through the global positioning system (GPS) device located in the newer generation of mobile phones.…”

A Context‐Aware Tour Guide: User Implications

“…Reported benefits of context-aware computing include improvement in overall system performance due to reduced and more efficient user interaction [22] as well as more streamlined communication [11]. Now that context aware computing, and its applications, have been defined and described, we shall take a look at existing context-aware Tour Guide applications.…”