A Comparison of PHY Layer on the Ecma-392 and IEEE 802.11af Standards
Jungsun Um, Sunghyun Hwang, Byung Jang Jeong · 2012
Cognitive radio is widely expected to be a promising technology to efficiently exploit underutilized spectrum. Regulatory committees in many countries are taking into account the spectrum policy of dynamic spectrum access using this technology. The TV band is under consideration as a first step