Radio Resource Management Optimization Strategy Research In Relay System

To promote the development of communication technology is often achieved by improving the efficiency of the available resources, while the wireless communication system is now faced with the problem for limited resources and increasing demands, it is of great significance to increase the efficiency of available resources. Many new technology will be used in future wireless communication systems, cooperative relay technology can not only ensure that no substantial increase in the cost of network deployment but also significantly improve system performance. Therefore, the wireless communication industry is more concerned about wireless cooperative relay technology. However, after the introduction of relay transmission, the network topology of the wireless communication system will be more complex, the radio link will be also increasing, reasonable distribution of radio resources means a lot in ensuring the effectiveness, reliability and robustness of the radio relay system, at the same time it can improve the radio resource utilization efficiency. Based on analysis of a large number of collaborative relay systems based on the consideration of the above problems, this paper studies how to design strategy that can improve wireless collaborative relay system energy efficiency while reducing the outage probability of wireless relay system resource optimization.Based on the goals of improve power resource utilization efficiency, the paper discussed the algorithm for power resource allocation of two-hop relay system, main researches focus on the wireless relay system outage probability under Rayleigh fading channel in case of equally power resource allocation, and get closed form expression for wireless relay outage probability, further, in pursuit of minimizing the outage probability, a research joint relay selection and optimal resource allocation strategy is proposed, and also obtain the closed form expression of the outage probability under optimal power allocation of resources. In addition, based on the analysis of power utility performance, two optimal relay selection schemes either minimizing system power or relay power are proposed. Through modeling and simulation, I verify the effectiveness and feasibility of the correctness of the above theoretical analysis and proposals.Finally, I summarize the wireless collaborative relay system resource optimization strategy and simulation process, and give an outlook for wireless collaborative future research trends.