Abstract
In this paper, we study the outage behavior of a decode-and-forward multi-hop free-space optical (FSO) system over a Poisson channel degraded by atmospheric turbulence. We assume that perfect channel side information (CSI) is available at the receiver side and consider both cases of perfect CSI and no CSI at the transmitter side. We solve the outage probability minimization problem subject to a peak power constraint as well as a short- or long-term average sum power constraint. As a result, optimal power control strategies are presented for different scenarios under consideration. A sub-optimal yet low-complexity solution is further proposed under the short-term power constraint. Our results demonstrate that multi-hop relaying yields significant performance improvements which are particularly important for long-range FSO links.
Original language | Undefined/Unknown |
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Title of host publication | 12th Canadian Workshop on Information Theory, CWIT 2011 |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 106-111 |
ISBN (Electronic) | 978-1-4577-0742-1 |
ISBN (Print) | 978-1-4577-0743-8 |
DOIs | |
Publication status | Published - 9 Jun 2011 |
Event | 2011 12th Canadian Workshop on Information Theory (CWIT) - Kelowna, BC, Canada, United Kingdom Duration: 17 May 2011 → 20 May 2011 |
Conference
Conference | 2011 12th Canadian Workshop on Information Theory (CWIT) |
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Country/Territory | United Kingdom |
City | Kelowna, BC, Canada |
Period | 17/05/11 → 20/05/11 |