Title :
Outage analysis of OFDM based full duplex cognitive DF relay network in the presence of narrowband interference
Author :
Rajkumar, S. ; Thiruvengadam, S.J.
Author_Institution :
Dept. of Electron. & Commun. Eng., Thiagarajar Coll. of Eng., Madurai, India
Abstract :
In this paper, Orthogonal Frequency Division Multiplexing (OFDM) based full-duplex Cognitive Radio (CR) network is proposed in the presence of Narrow Band Interference (NBI). The proposed overlay CR network employs Decode and Forward (DF) strategy at the relay node. Analytical expressions are derived for outage probabilities at the relay and destination nodes of full-duplex CR network in the presence of NBI from other wireless sources and loop/self interference at relay node. Using numerical results, the effect of NBI and loop interference in outage performance of CR network is also analyzed at each subcarrier of OFDM symbol.
Keywords :
OFDM modulation; cognitive radio; decode and forward communication; probability; radiofrequency interference; relay networks (telecommunication); DF strategy; NBI effect; NBI presence; OFDM symbol subcarrier; OFDM-based full-duplex CR network; OFDM-based full-duplex cognitive DF relay network; decode and forward strategy; destination node; loop-self interference; narrowband interference; orthogonal frequency division multiplexing; outage analysis; outage probability; overlay CR network; relay node; wireless sources; Frequency-domain analysis; Interference; OFDM; Relay networks (telecommunications); Signal to noise ratio; Vectors; Cognitive Radio; OFDM; full duplex relay; loop interference and outage probability; narrowband interference;
Conference_Titel :
Communication, Signal Processing and Networking (NCCSN), 2014 National Conference on
Conference_Location :
Palakkad
DOI :
10.1109/NCCSN.2014.7001166
