Research on Key Technologies of Green Communications Basing on MIMO Environments
|School||Huazhong University of Science and Technology|
|Course||Communication and Information System|
|Keywords||Green communications MIMO technology Energy efficiency model Power Control|
At present, the rapid development of the mobile communications industry : on the one hand , multi-input multi-output (MIMO: Multiple Input Multiple Output) technology has attracted increasing attention ; On the other hand , the growth in energy consumption and environmental pressure , brings a new concept - \. \The main work of the papers is the energy efficiency of the mobile communication system of the study . The study mainly include : a new model of energy efficiency , and energy efficiency analysis , carried out in four different communication scenarios using mathematical analysis , optimization model analysis and numerical simulation methods to compare the variation of the energy efficiency and spectral efficiency studied the various system parameters (transmission power , and the path gain ) the influence on the energy efficiency and preliminary analysis of the cause of its formation . A new energy efficiency assessment model based on the throughput of the communication system , and combined with an infinite source of interference MISO cooperative communication system , the numerical simulation analysis using the Monte Carlo simulation method , the interfering base station density , collaboration, communication , etc. factors that impact on the energy efficiency of the proposed model . MIMO-OFDM system for a single-cell , in order to optimize the efficiency of energy of the system for the purpose of a new power control algorithm PCEE (Power Control Basing on Energy Efficiency algorithm) . Simulation results show that , by interference suppression , collaborative communication and channel multiplexed with such means to be able to effectively improve the system's energy efficiency ; addition, the algorithm with traditional algorithms , while significantly significantly improve the system's energy efficiency of that can simultaneously improve the system's spectrum efficiency.