Based Distributed Mimo Capacity Under System Outage Probability

The key of the new wireless communication technology is how to achieve high data and high transfer speed, the Multi-input multi-output (MIMO, Multiple Input Multiple Output) communication technology sets many root antenna in the communication system (equal to source node and destination node are set many root antenna). Through the MIMO technology we can increase the capacity of the system, improve the performance of communication system, and improve utilization ratio of communication system bandwidth without increasing the system bandwidth and transmit power. The outage probability performance of distributed MIMO communication system which owns the relay nodes is discussed in this paper. In the wireless communications, MIMO communication technology can be divided into cooperation reuse and diversity reuse that are the two main key technologies for reaching and which also is the important index for balancing the communication system.This paper first discusses the prospects of the MIMO technology and the present research situation about the MIMO technology, analyzes the application, the principle and the current researches of the distributed MIMO technology. This paper briefly describes several common statistics of the small scale decline statistics, which are respectively Gaussian random variables, Raleigh random distribution, generalized Raleigh random distribution, generalized complex Gaussian random variables distribution and so on. In the light of this idea, this paper analyzes the MIMO channel model and all kinds of capacity characteristic of the centralized MIMO communication, including SISO capacity, SIMO capacity, MIMO capacity and MISO capacity. This paper selective analysis the distributed the MIMO system capacity and the distributed MIMO system capacity with the relay nodes, and the comparison are made between each capacity. On this basis, the interrupt probability of the distributed MIMO transmission system is discussed, the comparison is made between the transmission capacity and the classic Shannon capacity, the interruption probability is studied, and the improvement is proposed for reducing the interruption probability of the system, and the theory simulation is made for the above. Finally, it gives the summary and makes an expectation of the future work.