Outage Probability of Cognitive Relay Networks over Generalized Fading Channels with Interference Constraints

被引：6

作者：

Bithas, Petros S. ^{[1
,2
]}

Efthymoglou, George P. ^{[3
]}

Kalivas, Dimitris S. ^{[2
]}

机构：

[1] Natl Observ Athens, Inst Astron Astrophys Space Applicat & Remote Sen, GR-15236 Penteli, Greece

[2] Technol Educ Inst Piraeus, Dept Elect, GR-12244 Egaleo, Greece

[3] Univ Piraeus, Dept Digital Syst, GR-18534 Piraeus, Greece

来源：

FOURTH INTERNATIONAL CONFERENCE ON SELECTED TOPICS IN MOBILE & WIRELESS NETWORKING (MOWNET'2014) | 2014年 / 40卷

关键词：

Cognitive radio systems; decode-and-forward (DF) relaying; generalized-gamma; generalized-K; outage probability; shadowing; PERFORMANCE ANALYSIS; RADIO SYSTEMS; SELECTION; INFORMATION; DIVERSITY;

D O I：

10.1016/j.procs.2014.10.034

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

In this paper, we evaluate the outage probability (OP) of a cognitive relay network operating over generalized fading channels, modeled by the generalized-K and generalized-gamma distributions. In particular, secondary users, based on the underlay approach, cooperate employing decode-and-forward protocol, satisfying in any case an interference constraint on the primary destination users. The derived results include exact expressions as well as approximated ones for high values of the maximum allowed transmitted power. Numerical evaluated results show that the OP of cognitive relay networks is highly related with the fading/shadowing channel conditions as well as interfering constraints, with the latter resulting in higher OP compared to the conventional relaying systems. (C) 2014 The Authors Published by Elsevier B.V.

引用

页码：84 / 91

页数：8

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