%0 Journal Article %T An Efficient Adaptive Technique with Low Complexity for Reducing PAPR in OFDM-Based Cognitive Radio %A Hefdhallah Sakran %A Omar Nasr %A Mona Shokair %J ISRN Signal Processing %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/584941 %U http://dx.doi.org/10.5402/2012/584941