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Optimal node placement is studied for multi-hop free-space optical communications where any node can be a user. The lognormal weak turbulence channel is assumed. First, the problem of node placement is formulated as a constrained multi-objective optimization problem. Then, according to the priority of each user, the multi-objective problem is simplified to a constrained single-objective problem where...
Existing asymptotic analysis techniques fail to provide closed-form asymptotic outage probability expressions for lognormal fading channels due to the fact that lognormal fading channel distributions have an infinite diversity order. In this work, we develop a new analytical technique to study the asymptotic outage probability of maximum-ratio combining and equalgain combining over independent lognormal...
In this paper, a TGV interposer based wafer level packaging for inertial MEMS devices is presented. For the TGV interposer, there is a redistribution layer of Al wiring on each side, which are electrically connected with Al metalized TGV. Being as a capping wafer, it's bonded to a MEMS accelerometer wafer based on bulk silicon process with a patterned benzocyclobutene(BCB) layer to achieve wafer level...
Compressive sensing (CS) aims at acquiring and reconstructing sparse signals at a low sampling rate, and thus has wide applications in video processing. In this paper, an inductive three-dimensional sparsity measure (I_3DSM) is proposed for real-time video reconstruction. In the proposed sparsity measure, we utilize an online trained projection matrix to exploit the low-rank property of video sequence...
The methods to select supply chain partners for a corporation is very important, especially for the complicated supply chain network with hundreds of members and multilevel structure , and the increasingly developing of evaluation criteria. According to the situation, we propose RVPK algorithm based on PSO (particle swarm optimization) and k-means clustering. The method is applied on clustering of...
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