文档介绍：Abstract
With the construction and development of the high-speed railway, the high-speed railway has profoundly changed the way people travel. People enjoy the high speed, at the same time, they find that the work performance is not satisfactory in the high-speed railway scene. Addition to optimize the work, deployment of a work in place of the work is also a good method to improve the users’experience.
According to the characteristics of the high-speed rail coverage, the thesis focuses on analysis of work coverage in the high-speed environment and presents a planning and optimization process of work in the scene of high-speed railway. Firstly, the thesis introduces the basic principles and core technology of CDMA2000 systems and analyzes the the particularity of work coverage in the high-speed environment. It provides a theoretical basis for further research. Secondly, the thesis studies the work planning and optimization technology of high-speed rail and work planning and optimization processes, radio propagation models in the high-speed environment, link budget working. And according to the characteristics of various scenes along the high-speed rail, we do different planning by different terrain. Finally, according to an intercity railway planning and design scheme of work in detail, based on the site survey, we use the Enterprise (3G) simulation software to simulate the scheme, and simulation results verify the feasibility of the planning scheme. To further understand the coverage of an intercity work, we test the work by the dial test and EVDO download test. And the analysis results of the test data show that an intercity work coverage of CDMA2000 is pretty good and achieves the desired effect.
Key words: High-speed railway, CDMA2000, Network planning, Network optimization
目录
第一章绪论...............................................................................1
研究背景与意义....................................................................1
国内外研究现状...