Multi-hop relaying over the atmospheric poisson channel

M. Safari, M.M. Rad, M. Uysal

Research output: Chapter in Book/Report/Conference proceedingConference contribution


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 languageUndefined/Unknown
Title of host publication12th Canadian Workshop on Information Theory, CWIT 2011
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)978-1-4577-0742-1
ISBN (Print)978-1-4577-0743-8
Publication statusPublished - 9 Jun 2011
Event2011 12th Canadian Workshop on Information Theory (CWIT) - Kelowna, BC, Canada, United Kingdom
Duration: 17 May 201120 May 2011


Conference2011 12th Canadian Workshop on Information Theory (CWIT)
Country/TerritoryUnited Kingdom
CityKelowna, BC, Canada

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