Abstract

In this paper, we evaluate the performance of a selective-relaying (SR) protocol that is suitable for cooperative free-space optical (FSO) communications with any number of relays. The SR strategy is based on transmitting all information symbols either along the direct link between the source and the destination or along one of the indirect links via the relays. We derive closed-form expressions of upper-bounds on the average error probability that can be achieved over Rayleigh and lognormal fading channels. We also provide an asymptotic analysis for quantifying the diversity gain and reduction in fading variance that can be realized by the cooperative scheme. The performance analysis shows the superiority of the SR scheme over the strategy that corresponds to activating all available links.

© 2013 IEEE

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  1. M. Safari, M. Uysal, "Relay-assisted free-space optical communication," IEEE Trans. Wireless Commun. 7, 5441-5449 (2008).
  2. M. Karimi, M. Nasiri-Kenari, "BER analysis of cooperative systems in free-space optical networks," J. Lightw. Technol. 27, 5639 -5647 (2009).
  3. M. Karimi, M. Nasiri-Kenari, "Free-space optical communications via optical amplify-and-forward relaying ," J. Lightw. Technol. 29, 242-2248 (2011).
  4. C. Abou-Rjeily, A. Slim, "Cooperative diversity for free-space optical communications: Transceiver design and performance analysis," IEEE Trans. Commun. 59, 658-663 (2011 ).
  5. M. Kashani, M. Uysal, "Outage performance of FSO multi-hop parallel relaying," Proc. IEEE Signal Process. Commun. App. Conf. (2012) pp. 1-4.
  6. M. Kashani, M. Safari, M. Uysal, "Optimal relay placement in cooperative free-space optical communication systems," IEEE J. Opt. Commun. Netw. 5, 37-47 (2013).
  7. M. R. Bhatnagar, "Average BER analysis of differential modulation in DF cooperative communication system over gamma–gamma fading FSO links," IEEE Commun. Lett. 16, 1228- 1231 (2012).
  8. M. R. Bhatnagar, "Performance analysis of decode-and-forward relaying in gamma-gamma fading channels," IEEE Photon. Technol. Lett. 24, 545-547 (2012).
  9. A. Garcia-Zambrana, C. Castillo-Vasquez, B. Castillo-Vasquez, R. Boluda-Ruiz, "Bit detect and forward relaying for FSO links using equal gain combining over gamma–gamma atmospheric turbulence channels with pointing errors," Opt. Exp. 20, 16 394-16 409 (2012).
  10. S. Aghajanzadeh, M. Uysal, "Outage performance and DMT analysis of DF parallel relaying in FSO IM/DD communications," Proc. IEEE Veh. Technol. Conf. (2012) pp. 1-5.
  11. M. Safari, M. Rad, M. Uysal, "Multi-hop relaying over the atmospheric poisson channel: Outage analysis and optimization," IEEE Trans. Commun. 60, 817-829 (2012).
  12. C. Abou-Rjeily, S. Haddad, "Cooperative FSO systems: Performance analysis and optimal power allocation ," J. Lightw. Technol. 29, 1058-1065 (2011).
  13. N. D. Chatzidiamantis, D. S. Michalopoulos, E. E. Kriezis, G. K. Karagiannidis, R. Schober, "Relay selection protocols for relay-assisted free-space optical systems ," IEEE J. Opt. Commun. Netw. 5, 4790-4807 (2013).
  14. Q. He, Z. Xu, "Opportunistic cooperation for FSO links aided by decode and forward relay," Proc. IEEE Globecom Workshop (2012) pp. 1193 -1197.
  15. S. G. Wilson, M. Brandt-Pearce, Q. Cao, M. Baedke, "Optical repetition MIMO transmission with multipulse PPM ," IEEE J. Sel. Areas Commun. 23, 1901-1910 (2005).
  16. J. L. Barrett, P. A. Budni, "Laser beam propagation through strong turbulence," J. Appl. Phy. 71, 1124-1127 (1992).
  17. W. Popoola, Z. Ghassemlooy, "BPSK subcarrier intensity modulated free-space optical communications in atmospheric turbulence," J. Lightw. Technol. 27, 967-973 (2009).
  18. B. Castillo-Vazquez, A. Garcia-Zambrana, C. Castillo-Vazquez, "Closed-form BER expression for FSO links with transmit laser selection over exponential atmospheric turbulence channels," IEEE Electron. Lett. 45, 1185-1187 (2009 ).
  19. S. Halme, B. Levitt, and R. Orr, “Bounds and approximations for some integral expression involving lognormal statistics,” MIT Res. Lab. Electron. Quart. Prog. Rept., Tech. Rep. 1969, pp. 102–173..
  20. C. Abou-Rjeily, "Performance analysis of UWB systems over the IEEE 802.15.3a channel model," IEEE Trans. Commun. 59, 2377-2382 (2011).

2013 (2)

M. Kashani, M. Safari, M. Uysal, "Optimal relay placement in cooperative free-space optical communication systems," IEEE J. Opt. Commun. Netw. 5, 37-47 (2013).

N. D. Chatzidiamantis, D. S. Michalopoulos, E. E. Kriezis, G. K. Karagiannidis, R. Schober, "Relay selection protocols for relay-assisted free-space optical systems ," IEEE J. Opt. Commun. Netw. 5, 4790-4807 (2013).

2012 (4)

M. R. Bhatnagar, "Average BER analysis of differential modulation in DF cooperative communication system over gamma–gamma fading FSO links," IEEE Commun. Lett. 16, 1228- 1231 (2012).

M. R. Bhatnagar, "Performance analysis of decode-and-forward relaying in gamma-gamma fading channels," IEEE Photon. Technol. Lett. 24, 545-547 (2012).

A. Garcia-Zambrana, C. Castillo-Vasquez, B. Castillo-Vasquez, R. Boluda-Ruiz, "Bit detect and forward relaying for FSO links using equal gain combining over gamma–gamma atmospheric turbulence channels with pointing errors," Opt. Exp. 20, 16 394-16 409 (2012).

M. Safari, M. Rad, M. Uysal, "Multi-hop relaying over the atmospheric poisson channel: Outage analysis and optimization," IEEE Trans. Commun. 60, 817-829 (2012).

2011 (3)

C. Abou-Rjeily, S. Haddad, "Cooperative FSO systems: Performance analysis and optimal power allocation ," J. Lightw. Technol. 29, 1058-1065 (2011).

M. Karimi, M. Nasiri-Kenari, "Free-space optical communications via optical amplify-and-forward relaying ," J. Lightw. Technol. 29, 242-2248 (2011).

2011 (3)

C. Abou-Rjeily, A. Slim, "Cooperative diversity for free-space optical communications: Transceiver design and performance analysis," IEEE Trans. Commun. 59, 658-663 (2011 ).

2011 (3)

C. Abou-Rjeily, "Performance analysis of UWB systems over the IEEE 802.15.3a channel model," IEEE Trans. Commun. 59, 2377-2382 (2011).

2009 (2)

W. Popoola, Z. Ghassemlooy, "BPSK subcarrier intensity modulated free-space optical communications in atmospheric turbulence," J. Lightw. Technol. 27, 967-973 (2009).

2009 (2)

B. Castillo-Vazquez, A. Garcia-Zambrana, C. Castillo-Vazquez, "Closed-form BER expression for FSO links with transmit laser selection over exponential atmospheric turbulence channels," IEEE Electron. Lett. 45, 1185-1187 (2009 ).

2009 (2)

M. Karimi, M. Nasiri-Kenari, "BER analysis of cooperative systems in free-space optical networks," J. Lightw. Technol. 27, 5639 -5647 (2009).

2008 (1)

M. Safari, M. Uysal, "Relay-assisted free-space optical communication," IEEE Trans. Wireless Commun. 7, 5441-5449 (2008).

2005 (1)

S. G. Wilson, M. Brandt-Pearce, Q. Cao, M. Baedke, "Optical repetition MIMO transmission with multipulse PPM ," IEEE J. Sel. Areas Commun. 23, 1901-1910 (2005).

1992 (1)

J. L. Barrett, P. A. Budni, "Laser beam propagation through strong turbulence," J. Appl. Phy. 71, 1124-1127 (1992).

IEEE Commun. Lett. (1)

M. R. Bhatnagar, "Average BER analysis of differential modulation in DF cooperative communication system over gamma–gamma fading FSO links," IEEE Commun. Lett. 16, 1228- 1231 (2012).

IEEE Electron. Lett. (1)

B. Castillo-Vazquez, A. Garcia-Zambrana, C. Castillo-Vazquez, "Closed-form BER expression for FSO links with transmit laser selection over exponential atmospheric turbulence channels," IEEE Electron. Lett. 45, 1185-1187 (2009 ).

IEEE J. Opt. Commun. Netw. (1)

N. D. Chatzidiamantis, D. S. Michalopoulos, E. E. Kriezis, G. K. Karagiannidis, R. Schober, "Relay selection protocols for relay-assisted free-space optical systems ," IEEE J. Opt. Commun. Netw. 5, 4790-4807 (2013).

IEEE J. Opt. Commun. Netw. (1)

M. Kashani, M. Safari, M. Uysal, "Optimal relay placement in cooperative free-space optical communication systems," IEEE J. Opt. Commun. Netw. 5, 37-47 (2013).

IEEE J. Sel. Areas Commun. (1)

S. G. Wilson, M. Brandt-Pearce, Q. Cao, M. Baedke, "Optical repetition MIMO transmission with multipulse PPM ," IEEE J. Sel. Areas Commun. 23, 1901-1910 (2005).

IEEE Photon. Technol. Lett. (1)

M. R. Bhatnagar, "Performance analysis of decode-and-forward relaying in gamma-gamma fading channels," IEEE Photon. Technol. Lett. 24, 545-547 (2012).

IEEE Trans. Commun. (2)

C. Abou-Rjeily, A. Slim, "Cooperative diversity for free-space optical communications: Transceiver design and performance analysis," IEEE Trans. Commun. 59, 658-663 (2011 ).

IEEE Trans. Commun. (1)

M. Safari, M. Rad, M. Uysal, "Multi-hop relaying over the atmospheric poisson channel: Outage analysis and optimization," IEEE Trans. Commun. 60, 817-829 (2012).

IEEE Trans. Commun. (2)

C. Abou-Rjeily, "Performance analysis of UWB systems over the IEEE 802.15.3a channel model," IEEE Trans. Commun. 59, 2377-2382 (2011).

IEEE Trans. Wireless Commun. (1)

M. Safari, M. Uysal, "Relay-assisted free-space optical communication," IEEE Trans. Wireless Commun. 7, 5441-5449 (2008).

J. Appl. Phy. (1)

J. L. Barrett, P. A. Budni, "Laser beam propagation through strong turbulence," J. Appl. Phy. 71, 1124-1127 (1992).

J. Lightw. Technol. (4)

W. Popoola, Z. Ghassemlooy, "BPSK subcarrier intensity modulated free-space optical communications in atmospheric turbulence," J. Lightw. Technol. 27, 967-973 (2009).

C. Abou-Rjeily, S. Haddad, "Cooperative FSO systems: Performance analysis and optimal power allocation ," J. Lightw. Technol. 29, 1058-1065 (2011).

M. Karimi, M. Nasiri-Kenari, "BER analysis of cooperative systems in free-space optical networks," J. Lightw. Technol. 27, 5639 -5647 (2009).

M. Karimi, M. Nasiri-Kenari, "Free-space optical communications via optical amplify-and-forward relaying ," J. Lightw. Technol. 29, 242-2248 (2011).

Opt. Exp. (1)

A. Garcia-Zambrana, C. Castillo-Vasquez, B. Castillo-Vasquez, R. Boluda-Ruiz, "Bit detect and forward relaying for FSO links using equal gain combining over gamma–gamma atmospheric turbulence channels with pointing errors," Opt. Exp. 20, 16 394-16 409 (2012).

Other (4)

S. Aghajanzadeh, M. Uysal, "Outage performance and DMT analysis of DF parallel relaying in FSO IM/DD communications," Proc. IEEE Veh. Technol. Conf. (2012) pp. 1-5.

M. Kashani, M. Uysal, "Outage performance of FSO multi-hop parallel relaying," Proc. IEEE Signal Process. Commun. App. Conf. (2012) pp. 1-4.

Q. He, Z. Xu, "Opportunistic cooperation for FSO links aided by decode and forward relay," Proc. IEEE Globecom Workshop (2012) pp. 1193 -1197.

S. Halme, B. Levitt, and R. Orr, “Bounds and approximations for some integral expression involving lognormal statistics,” MIT Res. Lab. Electron. Quart. Prog. Rept., Tech. Rep. 1969, pp. 102–173..

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