Abstract
In this work, we present a unified performance analysis of a free-space optical (FSO) link that accounts for pointing errors and both types of detection techniques (i.e. intensity modulation/direct detection as well as heterodyne detection). We, then, present unified exact closed-form expressions for various statistical characteristics of the end-to-end signal-to-noise ratio (SNR) of a single link FSO transmission system. We capitalize on these unified results to offer unified exact closed-form expressions for various performance metrics. Additionally, we derive the asymptotic results for all the expressions derived earlier in the high SNR regime in terms of simple elementary functions. We also derive new asymptotic expressions for the ergodic capacity in the low as well as high SNR regimes in terms of simple elementary functions via utilizing moments. All the presented results are verified via computer-based Monte-Carlo simulations.
Original language | English |
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Title of host publication | 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781479980888 |
DOIs | |
Publication status | Published - 1 Jul 2015 |
Externally published | Yes |
Event | 81st IEEE Vehicular Technology Conference, VTC Spring 2015 - Glasgow, United Kingdom Duration: 11 May 2015 → 14 May 2015 |
Publication series
Name | IEEE Vehicular Technology Conference |
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Volume | 2015 |
ISSN (Print) | 1550-2252 |
Conference
Conference | 81st IEEE Vehicular Technology Conference, VTC Spring 2015 |
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Country/Territory | United Kingdom |
City | Glasgow |
Period | 11/05/15 → 14/05/15 |
Bibliographical note
Publisher Copyright:© 2015 IEEE.
Keywords
- Bit-error rate (BER)
- Ergodic capacity
- Free-space optical (FSO) communications
- Gamma-Gamma turbulence channels
- Meijer's G function
- Optical wireless communications
- Pointing errors