摘要
This Letter investigates the performance of the two-way multi-hop system for underwater optical wireless communications.With the decode-and-forward(DF)relaying,the two-way multi-hop system is modeled,where the effects of absorption,scattering,and oceanic turbulence are all taken into account.An exact closed-form expression for outage probability is derived under the assumption that the oceanic turbulence obeys a log-normal distribution.Numerical results demonstrate the impacts of various parameters on the outage performance and indicate that the two-way multi-hop system significantly improves the performance in comparison to both the one-way multi-hop system and the two-way two-hop system.
This Letter investigates the performance of the two-way multi-hop system for underwater optical wireless communications. With the decode-and-forward(DF) relaying, the two-way multi-hop system is modeled, where the effects of absorption, scattering, and oceanic turbulence are all taken into account. An exact closed-form expression for outage probability is derived under the assumption that the oceanic turbulence obeys a log-normal distribution. Numerical results demonstrate the impacts of various parameters on the outage performance and indicate that the two-way multi-hop system significantly improves the performance in comparison to both the one-way multi-hop system and the two-way two-hop system.
基金
supported in part by the National Natural Science Foundation of China(NSFC)(Nos.61871418and 61801079)
