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Based on the Cloud-Radio Access Network (C-RAN) structure and massive Multi-Input Multi-Output (MIMO), we propose one comprehensive system model and give the Energy Efficiency (EE) analysis of this system. The C-RAN structure is amended for better antenna control in massive MIMO based C-RAN system model. Furthermore, system EE optimization problem is modeled from a comprehensive way, and its solution...
Teaching-learning-based optimization (TLBO) algorithm is a new intelligence algorithm. It takes evaluation scheme which updates learners' grade totally in solving multi-dimensional function optimization problems, thus decreases the convergence speed. Moreover, the interference phenomena among dimensions would influence the quality of solutions. While all existing improvement strategies on TLBO introduce...
The ultimate goal to valuate the automotive supply chain performance is to carry out the overall optimization of the automotive supply chain. It is the key of supply chain performance evaluation that a set of perfect automotive supply chain performance evaluation index system must be establish. According to the definition of automotive supply chain performance, the automotive Supply Chain Performance...
The practical algorithm solves real time inverse kinematics of industrial 7R robot. Here D-H method is used to set up a closed-form 4x4 matrix equation of the 7R Robot, and then sine and cosine of joint angles is transformed to complex exponential form, 10 equations in same form are obtained. We extract the coefficient of every term to construct a 16x16 real number matrix. And the inverse kinematics...
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