@article{1215,
  author = {Ruilong Deng and Shibo He and Jiming Chen and Juncheng Jia and Weihua Zhuang and Youxian Sun},
  title = {Energy-efficient spectrum sensing by optimal periodic scheduling in cognitive radio networks},
  year = {2012},
  journal = {IET communications},
  volume = {6},
  number = {6},
  pages = {676-684},
  publisher = {IET Digital Library},
}