Title :
On the energy detection of unknown deterministic signal over Nakagami channelswith selection combining
Author :
Herath, Sanjeewa P. ; Rajatheva, Nandana ; Tellambura, Chintha
Author_Institution :
Asian Inst. of Technol., Klong Luang
Abstract :
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.
Keywords :
Nakagami channels; signal detection; Marcum-Q function; Nakagami channels; Nakagami-m fading channel; blind sensing; cognitive radio; energy detection; exact average detection probability; selection combining; ultra wideband application; unknown bandlimited deterministic signal; unknown deterministic signal; unused frequency bands; Bandwidth; Cognitive radio; Detectors; Diversity reception; Fading; Frequency; Radiofrequency identification; Rayleigh channels; Switches; Ultra wideband technology; Cognitive Radio; Energy Detection; Nakagami Fading; Selection Combining;
Conference_Titel :
Electrical and Computer Engineering, 2009. CCECE '09. Canadian Conference on
Conference_Location :
St. John´s, NL
Print_ISBN :
978-1-4244-3509-8
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2009.5090228
