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Báo cáo hóa học: " Research Article A Versatile Propagation Channel Simulator for MIMO Link Level Simulation"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article A Versatile Propagation Channel Simulator for MIMO Link Level Simulation | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2007 Article ID 80194 13 pages doi 10.1155 2007 80194 Research Article A Versatile Propagation Channel Simulator for MIMO Link Level Simulation Jean-Marc Conrat and Patrice Pajusco France Telecom NSM R D RESA NET 6 avenue des Usines BP 382 90007 Belfort Cedex France Received 29 March 2006 Revised 2 November 2006 Accepted 7 May 2007 Recommended by Thushara Abhayapala This paper presents a propagation channel simulator for polarized bidirectional wideband propagation channels. The generic channel model implemented in the simulator is a set of rays described by geometrical and propagation features such as the delay 3D direction at the base station and mobile station and the polarization matrix. Thus most of the wideband channel models including tapped delay line models tap directional models scatterer or geometrical models ray-tracing or ray-launching results can be simulated. The simulator is composed of two major parts firstly the channel complex impulse responses CIR generation and secondly the channel filtering. CIRs or CIR matrices for MIMO configurations are processed by specifying a propagation model an antenna array configuration a mobile direction and a spatial sampling factor. For each sensor independent arbitrary 3D vectorial antenna patterns can be defined. The channel filtering is based on the overlap-and-add method. The time-efficiency and parameterization of this method are discussed with realistic simulation setups. The global processing time for the CIR generation and the channel filtering is also evaluated for realistic configuration. A simulation example based on a bidirectional wideband channel model in urban environments illustrates the usefulness of the simulator. Copyright 2007 J.-M. Conrat and P. Pajusco. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and .