On the energy detection of unknown deterministic signal over Nakagami channelswith selection combining
Sanjeewa P. Herath, Nandana Rajatheva, Chintha Tellambura · 2009
Blind sensing for identifying unused frequency bands is of particular interest in cognitive radio and ultra wide-band applications. Energy detection is one such method proposed to identify the presence of an unknown band-limited deterministic signal. In this paper, by using an alternative series representation of the Marcum-Q function, the exact average detection probability over the Nakagami-m fading channel is derived. Moreover, we formulate the decision variable of a selection diversity combined energy detector and derive the exact average detection and false alarm probabilities.