Cognitive AF Relay Networks over Asymmetric Shadowing/Fading Channels in the Presence of Low-Rate Feedback

Eylem ERDOĞAN

Article Details

Cognitive AF Relay Networks over Asymmetric Shadowing/Fading Channels in the Presence of Low-Rate Feedback

Authors:

Eylem ERDOĞAN

Publisher:

İstanbul University-Cerrahpasa

Main Topics:

Applied physics

Journal:

Electrica 2018 Vol.18 Issue 2, pp.172-176

Document Type:

Article

Publication Date:

8/2018

Document Language:

English

Document ID (Org No.):

2000777592

Frequency:

Bi-Annual

eISSN:

2619-9831

Keywords:

Abstract:

 


DOI: 10.26650/electrica.2018.65047


This study investigates the performance of a cognitive amplify-and-forward (AF) relay network over composite asymmetric multipath/shadowing fading channels, whereby a new power allocation method is adopted at the secondary source and relay, assuming the mean-value interference channel. To quantify the performance of the proposed structure, closed-form outage probability and ergodic capacity expressions are derived. Moreover, asymptotic ergodic capacity analysis is performed to observe the effects of limited feedback and fading/shadowing severity in the system. The analytical results are validated with Monte-Carlo simulations, and they show that the proposed structure can be a realistic scenario for next-generation wireless systems, and a system designer can test the overall performance of the proposed system without dealing with complex prototypes.

.

 



DOI: 10.26650/electrica.2018.65047


This study investigates the performance of
a cognitive amplify-and-forward (AF) relay network over composite asymmetric
multipath/shadowing fading channels, whereby a new power allocation method is
adopted at the secondary source and relay, assuming the mean-value interference
channel. To quantify the performance of the proposed structure, closed-form
outage probability and ergodic capacity expressions are derived. Moreover,
asymptotic ergodic capacity analysis is performed to observe the effects of
limited feedback and fading/shadowing severity in the system. The analytical
results are validated with Monte-Carlo simulations, and they show that the
proposed structure can be a realistic scenario for next-generation wireless
systems, and a system designer can test the overall performance of the proposed
system without dealing with complex prototypes.

.

Article Details

Cognitive AF Relay Networks over Asymmetric Shadowing/Fading Channels in the Presence of Low-Rate Feedback

Authors:

Eylem ERDOĞAN

Publisher:

İstanbul University-Cerrahpasa

Main Topics:

Applied physics

Journal:

Electrica 2018 Vol.18 Issue 2, pp.172-176

Document Type:

Article

Publication Date:

8/2018

Document Language:

English

Document ID (Org No.):

2000777592

Frequency:

Bi-Annual

eISSN:

2619-9831

Cognitive radio

multipath/shadowing fading channels

cooperative communication

Issues

Article Details

Cognitive AF Relay Networks over Asymmetric Shadowing/Fading Channels in the Presence of Low-Rate Feedback

Authors: Eylem ERDOĞAN

Publisher: İstanbul University-Cerrahpasa

Main Topics: Applied physics

Journal: Electrica 2018 Vol.18 Issue 2, pp.172-176

Document Type: Article

Publication Date: 8/2018

Document Language: English

Document ID (Org No.): 2000777592

Frequency: Bi-Annual

eISSN: 2619-9831

Cognitive radio

multipath/shadowing fading channels

cooperative communication

Issues

Authors:

Eylem ERDOĞAN

Publisher:

İstanbul University-Cerrahpasa

Main Topics:

Applied physics

Journal:

Electrica 2018 Vol.18 Issue 2, pp.172-176

Document Type:

Article

Publication Date:

8/2018

Document Language:

English

Document ID (Org No.):

2000777592

Frequency:

Bi-Annual

eISSN:

2619-9831