Abstract

In this paper, we carry out a performance analysis of a two-user free-space optical (FSO) communication system with photodetector multiplexing, in which the two users are defined as the primary user (PU) and secondary user (SU). Unlike common single-user FSO systems, our photodetector multiplexing FSO system deploys a shared detector at the receiver and enables PU and SU to send their own data synchronously. We conduct the performance analysis of this FSO system for two cases: (1) in the absence of background radiation, and (2) in the presence of background radiation. Decision strategies for PU and SU are presented according to the two scenarios above. Exact and approximate conditional symbol-error probability (SEP) expressions for both PU and SU are derived, in an ideal channel with no fading. Average SEP expressions are also presented in the no-background-radiation scenario. Additionally, in some particular cases where the power ratio tends to 0.5 or 1, approximate SEP expressions are also obtained. Finally, numerical simulations are presented under different conditions, to support the performance analysis.

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  2. S. Arnon, M. Uysal, Z. Ghassemlooy, Z. Y. Xu, and J. L. ChengGuest editorial optical wireless communicationsIEEE J. Sel. Areas Commun.20153317331737
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  7. S. M. Navidpour, M. Uysal, and M. KavehradBER performance of free-space optical transmission with spatial diversityIEEE Trans. Wireless Commun.2007628132819
  8. A. Garcia-Zambrana, C. Castillo-Vazquez, and B. Castillo-VazquezSpace-time trellis coding with transmit laser selection for FSO links over strong atmospheric turbulence channelsOpt. Express20101853565366
  9. J. A. Anguita, M. A. Neifeld, and B. V. VasicSpatial correlation and irradiance statistics in a multiple-beam terrestrial free-space optical communication linkAppl. Opt.20074665616571
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  12. T. A. Tsiftsis, H. G. Sandalidis, G. K. Karagiannidis, and M. UysalOptical wireless links with spatial diversity over strong atmospheric turbulence channelsIEEE Trans. Wireless Commun.20098951957
  13. M. R. Bhatnagar and Z. GhassemlooyPerformance analysis of Gamma-Gamma fading FSO MIMO links with pointing errorsJ. Lightwave Technol.20163421582169
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  15. A. A. Farid and S. HranilovicDiversity gain and outage probability for MIMO free-space optical links with misalignmentIEEE Trans. Commun.201260479487
  16. A. Garcia-Zambrana, C. Castillo-Vazquez, and B. Castillo-VazquezOutage performance of MIMO FSO links overstrong turbulence and misalignment fading channelsOpt.Express2011191348013496
  17. N. Letzepis and A. G. I. FabregasOutage probability of the gaussian MIMO free-space optical channel with PPMIEEE Trans. Commun.20095736823690
  18. I. B. DjordjevicAdaptive modulation and coding for free-space optical channelsJ. Opt. Commun. Netw.20102221229
  19. O. Barsimantov and V. V. NikulinAdaptive optimization of a free space laser communication system under dynamic link attenuationJ. Opt. Commun. Netw.20113215222
  20. A. Garcia-Zambrana, C. Castillo-Vazquez, B. Castillo-Vazquez, and R. Boluda-RuizBit detect and forward relaying for FSO links using equal gain combining over gamma-gamma atmospheric turbulence channels with pointing errorsOpt. Express2012201639416409
  21. R. Boluda-Ruiz, A. Garcia-Zambrana, C. Castillo-Vazquez, and B. Castillo-VazquezAdaptive selective relaying in cooperative free-space optical systems over atmospheric turbulence and misalignment fading channelsOpt. Express2014221662916644
  22. C. Abou-Rjeily and A. SlimCooperative diversity for free-space optical communications: transceiver design and performance analysisIEEE Trans. Commun.201159658663
  23. N. D. Chatzidiamantis, L. Georgiadis, H. G. Sandalidis, and G. K. KaragiannidisThroughput-optimal link-layer design in power constrained hybrid OW/RF systemsIEEE J. Sel. Areas Commun.20153319721984
  24. Y. Tang and M. Brandt-PearceLink allocation, routing, and scheduling for hybrid FSO/RF wireless mesh networksJ. Opt. Commun. Netw.201468695
  25. F. Yang, J. L. Cheng, and T. A. TsiftsisFree-space optical communication with nonzero boresight pointing errorsIEEE Trans. Commun.201462713725
  26. W. P. Z. Ghassemlooy and S. RajbhandariOptical wireless communications system and channel modelling with MATLABCRC PressBoca Raton2013
  27. C. Abou-Rjeily and S. HaddadInter-relay cooperation: a new paradigm for enhanced relay-assisted FSO communicationsIEEE Trans. Commun.20146219701982
  28. A. Mostafa and S. HranilovicChannel measurement and markov modeling of an urban free-space optical linkJ. Opt. Commun. Netw.20124836846
  29. A. Papoulis and S. U. PillaiProbability, Random variables and stochastic processesMcGraw-Hill CompaniesNew York2002
  30. V. S. Adamchik and O. I. MarichevThe algorithm for calculating integrals of hypergeometric type functions and its realization in REDUCE systemInternational Symposium on Symbolic and Algebraic Computation1990212224
  31. 2015http://functions.wolfram.com/HypergeometricFunctions/MeijerG/

Other (31)

M. A. Khalighi and M. UysalSurvey on free space optical communication: a communication theory perspectiveIEEE Commun. Surveys Tuts.20141622312258

S. Arnon, M. Uysal, Z. Ghassemlooy, Z. Y. Xu, and J. L. ChengGuest editorial optical wireless communicationsIEEE J. Sel. Areas Commun.20153317331737

A. A. Farid and S. HranilovicOutage capacity optimization for free-space optical links with pointing errorsJ. Lightwave Technol.20072517021710

M.-A. Khalighi, N. Schwartz, N. Aitamer, and S. BourennaneFading reduction by aperture averaging and spatial diversity in optical wireless systemsJ. Opt. Commun. Netw.20091580

L. C. AndrewsAperture-averaging factor for optical scintillations of plane and spherical waves in the atmosphereJ. Opt. Soc. Am. A19929597

E. J. Lee and V. W. S. ChanPart 1: Optical communication over the clear turbulent atmospheric channel using diversityIEEE J. Sel. Areas Commun.20042218961906

S. M. Navidpour, M. Uysal, and M. KavehradBER performance of free-space optical transmission with spatial diversityIEEE Trans. Wireless Commun.2007628132819

A. Garcia-Zambrana, C. Castillo-Vazquez, and B. Castillo-VazquezSpace-time trellis coding with transmit laser selection for FSO links over strong atmospheric turbulence channelsOpt. Express20101853565366

J. A. Anguita, M. A. Neifeld, and B. V. VasicSpatial correlation and irradiance statistics in a multiple-beam terrestrial free-space optical communication linkAppl. Opt.20074665616571

S. G. Wilson, M. Brandt-Pearce, Q. L. Cao, and J. H. LevequeFree-space optical MIMO transmission with Q-ary PPMIEEE Trans. Commun.20055314021412

S. G. Wilson, M. Brandt-Pearce, Q. L. Cao, and M. BaedkeOptical repetition MIMO transmission with multipulse PPMIEEE J. Sel. Areas Commun.20052319011910

T. A. Tsiftsis, H. G. Sandalidis, G. K. Karagiannidis, and M. UysalOptical wireless links with spatial diversity over strong atmospheric turbulence channelsIEEE Trans. Wireless Commun.20098951957

M. R. Bhatnagar and Z. GhassemlooyPerformance analysis of Gamma-Gamma fading FSO MIMO links with pointing errorsJ. Lightwave Technol.20163421582169

J. Zhang, L. Dai, Y. Han, Y. Zhang, and Z. WangOn the ergodic capacity of MIMO free-space optical systems over turbulence channelsIEEE J. Sel. Areas Commun.20153319251934

A. A. Farid and S. HranilovicDiversity gain and outage probability for MIMO free-space optical links with misalignmentIEEE Trans. Commun.201260479487

A. Garcia-Zambrana, C. Castillo-Vazquez, and B. Castillo-VazquezOutage performance of MIMO FSO links overstrong turbulence and misalignment fading channelsOpt.Express2011191348013496

N. Letzepis and A. G. I. FabregasOutage probability of the gaussian MIMO free-space optical channel with PPMIEEE Trans. Commun.20095736823690

I. B. DjordjevicAdaptive modulation and coding for free-space optical channelsJ. Opt. Commun. Netw.20102221229

O. Barsimantov and V. V. NikulinAdaptive optimization of a free space laser communication system under dynamic link attenuationJ. Opt. Commun. Netw.20113215222

A. Garcia-Zambrana, C. Castillo-Vazquez, B. Castillo-Vazquez, and R. Boluda-RuizBit detect and forward relaying for FSO links using equal gain combining over gamma-gamma atmospheric turbulence channels with pointing errorsOpt. Express2012201639416409

R. Boluda-Ruiz, A. Garcia-Zambrana, C. Castillo-Vazquez, and B. Castillo-VazquezAdaptive selective relaying in cooperative free-space optical systems over atmospheric turbulence and misalignment fading channelsOpt. Express2014221662916644

C. Abou-Rjeily and A. SlimCooperative diversity for free-space optical communications: transceiver design and performance analysisIEEE Trans. Commun.201159658663

N. D. Chatzidiamantis, L. Georgiadis, H. G. Sandalidis, and G. K. KaragiannidisThroughput-optimal link-layer design in power constrained hybrid OW/RF systemsIEEE J. Sel. Areas Commun.20153319721984

Y. Tang and M. Brandt-PearceLink allocation, routing, and scheduling for hybrid FSO/RF wireless mesh networksJ. Opt. Commun. Netw.201468695

F. Yang, J. L. Cheng, and T. A. TsiftsisFree-space optical communication with nonzero boresight pointing errorsIEEE Trans. Commun.201462713725

W. P. Z. Ghassemlooy and S. RajbhandariOptical wireless communications system and channel modelling with MATLABCRC PressBoca Raton2013

C. Abou-Rjeily and S. HaddadInter-relay cooperation: a new paradigm for enhanced relay-assisted FSO communicationsIEEE Trans. Commun.20146219701982

A. Mostafa and S. HranilovicChannel measurement and markov modeling of an urban free-space optical linkJ. Opt. Commun. Netw.20124836846

A. Papoulis and S. U. PillaiProbability, Random variables and stochastic processesMcGraw-Hill CompaniesNew York2002

V. S. Adamchik and O. I. MarichevThe algorithm for calculating integrals of hypergeometric type functions and its realization in REDUCE systemInternational Symposium on Symbolic and Algebraic Computation1990212224

2015http://functions.wolfram.com/HypergeometricFunctions/MeijerG/

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