A Novel Location Determination Technique for Traffic Control and Surveillance using Stratospheric Platforms

Abstract

Abstract-This paper presents a new technique for location determination using the promising technique of stratospheric platform (SP) flying at altitudes 17-22 km high and a suitable Direction-of-Arrival technique (DOA). The SP system is preferable due to its superior communication performance compared to conventional terrestrial and satellite systems. The proposed technique provides central information about accurate locations for mobile stations which is very important for traffic control and rescue operations at emergency situations. The DOA estimation in this technique defines the user location using high resolution DOA technique such as MUSIC which provides an accuracy comparable to the Global Positioning System (GPS) technique but without the need for GPS receivers. Several scenarios for users' locations determination are examined to define the robustness of the proposed technique.

A Novel Algorithm to Improve Resolution for Very Few Samples

“…The resampled boostrapis an unordered collection of n samples points drawn randomly from with replacement, so that each has probability of being equal to any one of the X j " s. In other terms [8], [9], [11]:…”

“…We exploits the resample bootstrap algorithm described in [9] to reproduce samples and use it in our proposed "SSBoot" algorithm.…”

“…In each sub-array, the correlation matrix is estimated from bootstrapped data samples. We exploit the idea of the author in [3] and applied MUSIC in each sub-array; to estimate the number of sources as number of peaks [1], [8], [9].…”

Integrated Satellite- APs-Terrestrial System for UMTS and LTE Network

“…The hexagonal grid is then left as conceptual schematics and has to give way to a detailed architecture planning based on propagation rules, users' densities and air interface dynamics of the relevant system [19]. In addition to the above problem a terrestrial radio link faces a great deal of obstacles in its path: Hence, the electromagnetic wave cannot travel great distances, while a satellite link features an extremely long transmission path (distance may be in the order of hundreds of kilometers for the low-earth orbit satellites) and, which weakens the wave and demands additional cost, although less obstacles obstruct the signal [5,9]. Other problem is the design of a satellite system is a complicated, difficult task and it takes several years to design different parts of a system to add additional service need [11].…”