... divided into two steps. First, usinginteger programming, we achieve the joint relay selection and subcarrier allocation based on maximizing systemsum rate in a centralized way. Second, the ... dividedinto two steps. First, using integer p rogramming, weachieve the joint relay selection and subcarrier allocation based on m aximizing system sum rate in a centralizedway. Second, the ... power allocation based on game theory in uplink OFDMA systems. J Electron Inf Technol. 4, 775–780 (2010)6. D Wu, Y Cai, Power allocation in interference relay channels based on non-cooperative...