@article{1261,
  author = {Zhongming Zheng and Lin Cai and Ran Zhang and Xuemin Shen},
  title = {RNP-SA: Joint relay placement and sub-carrier allocation in wireless communication networks with sustainable energy},
  year = {2012},
  journal = {IEEE Transactions on Wireless Communications},
  volume = {11},
  number = {10},
  pages = {3818-3828},
  publisher = {IEEE},
}