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The unmanned aerial vehicles (UAVs) have been considered an efficient platform for monitoring critical infrastructures spanning over a large geographical area. In this paper, a novel UAV optimal path planning approach based on the combination of A∗ search algorithm (AS) and ant colony optimization (ACO) algorithm for UAV patrolling is presented. The proposed path planning solution aims to identify...
This paper considers a joint beamforming design problem in the multicast broadcast single frequency network (MBSFN) scenario with multiple multicast groups that provide different multicast services. To solve the joint beamforming design among the cooperating base stations, which is also known as the joint processing scheme in the coordinated multipoint transmission (CoMP) defined in the long-term...
This paper considers a joint beamforming design problem in the multicell multicast system with multiple groups that provide different multicast services. Inspired by previous works in the literature, we apply semidefinite relaxation (SDR) to perform joint beamforming design among the cooperating base stations. Per-cell power constraints are considered which make solving the problem challenging. We...
Establishing correspondences between minutiae sets is a fundamental issue in fingerprint recognition. This paper proposes a graph matching strategy. It addresses this problem using two extended clique models: the local clique model (LCM) and the global quasi-clique model (GQCM). First, minutia matching is formulated as maximal clique or quasi-clique detection. Similarities and compatibilities between...
Two-Step Weighted Least Squares (TSWLS) method (or the Chan method) is a classical TDOA-Based localization algorithm. We find that the Chan method will yield exceptionally large localization error if the target node is near the center of a circle formed by the anchor nodes. We name such a phenomenon Lost at the Center of a Circle (LCC). It is shown that LCC has no connection with the Geometric Dilution...
Over the last decade, there has been substantial research interest in the application of accelerometry data for many forms of automated gait and activity analysis algorithms. This paper introduces a summary of new ldquoof-the-shelfrdquo mobile phone handset platforms containing embedded accelerometers which support the development of custom software to implement real time analysis of the accelerometer...
Nowadays, localization information is widely used in various location-dependant applications in ad hoc, wireless sensor networks (WSN), and other communication networks. Meanwhile, localization algorithm is becoming an important issue in wireless communication research. As one important part in localization algorithms, placement strategy can be simply used in real wireless communication networks....
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