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

fYear

2014

fDate

10-12 Oct. 2014

Firstpage

1

Lastpage

6

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication, Signal Processing and Networking (NCCSN), 2014 National Conference on

Conference_Location

Palakkad

Type

conf

DOI

10.1109/NCCSN.2014.7001161

Filename

7001161