Based On Space-time Block Codes For Mimo Research

Mobile communication is one of the most rapidly development fields in communications, it provides great influence on human life and society development. Along with the continuous development of the communication technique, how to satisfy the further communication system of capacity, data rate and the frequent efficiency that becomes the target of the researchers. So a new technique that is multi-input and multi-output (MIMO) has been put forward.STC (Space-Time codes) is based on MIMO, it can provide the high frequent efficiency and has strong ability to exterminate the multi-paths fading, so it can improve the quality of communication system. STBC (Space-Time Block codes) is one of the STC, but it becomes the widest researched and implied coding scheme in Space-Time Codes, because it has the advantages such as the simple construction, low decoding complexity and good performance and so on.To study the performance of the mobile communication need to study the channel environment. This article introduces three kinds of signal channel and gives some simulation results based on Rayleigh channel. This article introduces the channel capacity based on Rayleigh channel and gives the function. You can find that the channel capacity improves much when uses MIMO technique. At last, this article discusses the coding method of STBC and introduces a new imbed coding method and give a simple decoding method.