This paper investigates the performance of amplify-and-forward (AF) relaying protocols for wireless energy harvesting and information processing. The authors propose two relaying protocols: time switching-based relaying (TSR) and power splitting-based relaying (PSR). These protocols enable energy harvesting and information processing at an energy-constrained relay node. The TSR protocol uses a fraction of the block time for energy harvesting and the remaining time for information processing, while the PSR protocol splits the received power between energy harvesting and information processing. The performance of these protocols is evaluated in both delay-limited and delay-tolerant transmission modes. The authors derive analytical expressions for the outage probability and ergodic capacity to evaluate the throughput in these modes. The results show that the TSR protocol outperforms the PSR protocol in terms of throughput at relatively low signal-to-noise-ratios and high transmission rates. The numerical analysis also shows that placing the relay node closer to the source node increases the throughput in both transmission modes. The paper concludes that the proposed protocols provide a practical solution for wireless energy harvesting and information processing in AF relaying networks.This paper investigates the performance of amplify-and-forward (AF) relaying protocols for wireless energy harvesting and information processing. The authors propose two relaying protocols: time switching-based relaying (TSR) and power splitting-based relaying (PSR). These protocols enable energy harvesting and information processing at an energy-constrained relay node. The TSR protocol uses a fraction of the block time for energy harvesting and the remaining time for information processing, while the PSR protocol splits the received power between energy harvesting and information processing. The performance of these protocols is evaluated in both delay-limited and delay-tolerant transmission modes. The authors derive analytical expressions for the outage probability and ergodic capacity to evaluate the throughput in these modes. The results show that the TSR protocol outperforms the PSR protocol in terms of throughput at relatively low signal-to-noise-ratios and high transmission rates. The numerical analysis also shows that placing the relay node closer to the source node increases the throughput in both transmission modes. The paper concludes that the proposed protocols provide a practical solution for wireless energy harvesting and information processing in AF relaying networks.