Title :
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
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;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/LWC.2015.2442988
