Title :
Performance analysis of PLNC based cognitive radio relay systems with two source and destination nodes
Author :
Velmurugan, P.G.S. ; Thiruvengadam, S.J.
Author_Institution :
ECE Dept., Thiagarajar Coll. of Eng., Madurai, India
Abstract :
In this paper, outage performance of Physical Layer Network Coding (PLNC) based half duplex Cognitive Radio Relay (CRR) system with two source and destination nodes is analyzed in overlay and underlay spectrum sharing schemes. Using Decode and Forward (DF) relay, two source nodes send data to both the destination nodes in two time slots when there is large fading and path loss between one of the source and destination nodes. The DF relay decodes the data symbols from the two source nodes and transmits the PLNC encoded symbol to both the destination nodes in the second time slot. Analytical expressions are derived for end-to-end outage probability for the proposed PLNC based CRR system and non-PLNC based system. Practical simulations are carried out to validate the analytical expressions.
Keywords :
cognitive radio; decode and forward communication; decoding; network coding; probability; radio spectrum management; relay networks (telecommunication); DF relay; PLNC-based cognitive radio relay systems; PLNC-based half-duplex CRR system; PLNC-encoded symbol; data symbol decoding; decode-and-forward relay; destination node; end-to-end outage probability; half-duplex cognitive radio relay system; nonPLNC based system; overlay spectrum sharing scheme; path loss; physical layer network coding; source node; underlay spectrum sharing scheme; Cognitive radio; Fading; Interference; Network coding; Relays; Signal to noise ratio; Cognitive Radio; Physical layer network coding; outage probability; overlay mode; underlay mode;
Conference_Titel :
Communication, Signal Processing and Networking (NCCSN), 2014 National Conference on
Conference_Location :
Palakkad
DOI :
10.1109/NCCSN.2014.7001161
