Yang, L., Hasna, M. and Ansari, I. S. (2017) Unified performance analysis for multiuser mixed η-μ and Μ-distribution dual-hop RF/FSO systems. IEEE Transactions on Communications, 65(8), pp. 3601-3613. (doi: 10.1109/TCOMM.2017.2700462)
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Abstract
A mixed free-space optical (FSO) communication scheme is considered with the help of a fixed gain relay. We assume that the links from the source to the relay are radio frequency links with multiuser diversity operating in η–μ fading channels, while the link between the relay and the destination is a FSO link with M -distribution. We first derive expressions for the cumulative distribution function of the end-to-end signal-to noise ratio for the considered system with pointing errors, and then use them to derive some exact closed-form expressions for the outage probability, bit-error rate performance, and ergodic capacity. To investigate the diversity order and effects of different system and channel parameters on the system performance, we further present the asymptotic performance expressions. On the other hand, we also present the performance analysis for a mixed RF/FSO system with variable-gain relaying and multiuser diversity. Results show that the system diversity orders for both fixed and variable gains systems are min{2Kμ, g2/2, α/2, k/2}, where K is the number of users, g represents the pointing error, and α and k are the channel parameters. Finally, some selected numerical results are given to corroborate the derived analytical results.
| Item Type: | Articles |
|---|---|
| Additional Information: | This work was in part supported by the sponsorship agreement in support of research and collaboration by Ooredoo, Doha, Qatar, and in part the National Natural Science Foundation of China (NSFC) under Grant 61372096 and 61671160, the Guangdong Natural Science Foundation (No. 2014A030311009), the Department of Education of Guangdong Province (No. 2016KZDXM050), and the open research fund of National Mobile Communications Research Laboratory, Southeast University (No. 2014D11). |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Ansari, Dr Imran |
| Authors: | Yang, L., Hasna, M., and Ansari, I. S. |
| College/School: | College of Science and Engineering > School of Engineering |
| Journal Name: | IEEE Transactions on Communications |
| Publisher: | Institute of Electrical and Electronics Engineers |
| ISSN: | 0090-6778 |
| ISSN (Online): | 1558-0857 |
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