Ye, Y.Li, Y.Zhou, F.Al-Dhahir, NaofalZhang, H.2019-10-082019-10-082018-07-131932-8184https://hdl.handle.net/10735.1/6981Full text access from Treasures at UT Dallas is restricted to current UTD affiliates (use the provided Link to Article).This letter investigates the outage performance of dual-hop decode and forward relay systems in the presence of a direct link between the source and the destination, where simultaneous wireless information and power transfer is exploited at the relay by using a static/dynamic power splitting (PS) scheme. An analytical expression for the outage probability is derived to determine the optimal static PS ratio. Moreover, we study the dynamic PS scheme and derive a closed-form expression for the optimal dynamic PS ratio to minimize the outage probability at a given target rate. Furthermore, an analytical expression for the outage probability with the optimal dynamic PS ratio is also presented. It is shown that a full diversity gain can be achieved in the investigated system with static/dynamic PS scheme, and that the dynamic PS scheme outperforms the static PS scheme. ©2018 IEEEen©2018 IEEEOutages, Electric powerElectric power systems--ReliabilityProbabilitiesWireless communication systemsInformation theoryData transmission systemsEnergy transferarticleYe, Y., Y. Li, F. Zhou, N. Al-Dhahir, et al. 2018. "Power Splitting-Based SWIPT with Dual-Hop DF Relaying in the Presence of a Direct Link." IEEE Systems Journal 13(2): 1316-1319, doi: 10.1109/JSYST.2018.2850944132