Two-Way Relay Selection in Multiple Relayed FSO Networks

Author

Puri, Parul ; Chatzidiamantis, Nestor D. ; Garg, Parul ; Aggarwal, Mona ; Karagiannidis, George K.

Author_Institution

Netaji Subhas Inst. of Technol., New Delhi, India

Volume

4

Issue

5

fYear

2015

Firstpage

485

Lastpage

488

Abstract

In this letter, a parallel relayed free-space optical (FSO) network is considered. The network consists of multiple half-duplex amplify-and-forward two-way relays (TWRs), that assist in establishing communication between two distant nodes. A single TWR that maximizes the achievable-rate of the network is selected to participate in the communication process. Assuming that the optical channel is affected by path loss, misalignment errors, and atmospheric turbulence, we derive exact and asymptotic closed form expressions for the achievable-rate and the relay with the maximum achievable-rate is selected for communication.

Keywords

amplify and forward communication; atmospheric turbulence; optical communication; relay networks (telecommunication); asymptotic closed form expressions; atmospheric turbulence; exact closed form expressions; half-duplex amplify-and-forward two-way relays; misalignment errors; multiple relayed FSO networks; optical channel; parallel relayed free-space optical network; path loss; two-way relay selection; Adaptive optics; Atmospheric modeling; Fading; Optical fiber networks; Relays; Signal to noise ratio; Achievable-rate; Gamma-Gamma distribution; achievable-rate; free-space optics; pointing error; relay selection; two-way relay;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/LWC.2015.2442988

Filename

7120098