Performance analysis method for opportunity relay selection scheme in cooperative wireless communication system

• Main Authors: ZHANG GUANGNA, ZANG GUOZHEN, GUO MINGXI, LIU XIAOCHEN, WANG SHIJIE, HUANG SHENG, SHA NAN, GAO YUANYUAN, LI YIGAO, WANG XIAOYU
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2019
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention discloses a performance analysis method for an opportunity relay selection scheme in a cooperative wireless communication system. Under the condition of a wireless fading channel, when adirect transmission link does not exist between a sender and a legal receiver, transmission of confidential information is assisted by adopting opportunity relay selection. With direct transmission as a reference, single-relay and multi-relay selection schemes are compared. By comprehensively considering an interruption probability, an interception probability and safety-reliability in a compromised way, the performance of several schemes is analyzed, and an opportunity relay selection scheme with the optimal comprehensive performance is selected to transmit confidential information, so thatthe safety of information transmission is improved, and the reliability of the system is ensured. The invention provides a relay network performance analysis method. The performance of the two relay selection schemes under the