The relay selection and power optimization of multi-relay cooperative communication network under a joint sum power constraint was considered. A low complexity lay selection and power allocation algorithm was also pro-posed in amplify-and-forward cooperative network aiming at minimizing the probability of system outage. In this scheme. optimal power allocation among source and relay n... https://www.chiggate.com/voyage-et-cie-5-3-wick-candle-discount/