Minimum Mean Square Pre-coding Method for Cognitive Radio Networks with Eliminating Asynchronous Interference
Minmetals Yingkong · Metallurgical Equipment · 2015
When the primary users and second user geographically has certain distance,there are asynchronous interferences,the interferences not only influence the primary user system,also can affect second user system. To solve this problem,in order to eliminate asynchronous interference to primary and secondary users the influence of system,this paper puts forward a kind of based on the minimum mean square error of pre-coding method. Analysis and simulation results show that the proposed scheme in the main user system interference limited conditions,effectively enhance the user's system and second user system capacity,and improve the reliability of the transmission system of second users system.