Outage Analysis of Underlay Cognitive Multiple Relays Networks with a Direct Link

Author

Haiyan Huang ; Zan Li ; Jiangbo Si ; Rui Gao

Author_Institution

Integrated Service Networks Lab., Xidian Univ., Xi´an, China

Volume

17

Issue

8

fYear

2013

fDate

Aug-13

Firstpage

1600

Lastpage

1603

Abstract

In this letter, exact outage probability of decode-and-forward (DF) and incremental DF (IDF) relaying are respectively derived over underlay cognitive relay networks. Particularly, we consider both the direct link and the primary user´s (PU´s) interference with multiple available relays. Moreover, to reveal additional insights into the performance of DF and IDF relaying, the outage gap between the two schemes is theoretically evaluated. Finally, simulation results validate our analytical studies.

Keywords

cognitive radio; decode and forward communication; probability; radio links; radiofrequency interference; relay networks (telecommunication); IDF relaying; decode-and-forward; direct link; exact outage probability; incremental DF relaying; outage analysis; primary user interference; underlay cognitive multiple relays network; Closed-form solutions; Decoding; Fading; Interference; Relays; Signal to noise ratio; Simulation; Cognitive relay networks; incremental DF relaying; outage probability;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2013.070113.130908

Filename

6559996