Abstract—In this paper, a half-duplex two-way relay channelwith energy harvesting nodes is considered. In particular, shorttermthroughput maximization problems are solved using adecode-and-forward relay. Necessary properties of the optimaltransmission policy are derived to gain insights into the optimalsolution. Then, a subgradient descent algorithm is used to find the optimal policy. It is observed through simulations that energydeficientnodes act as bottlenecks on the achieved throughput. The achieved average throughput is observed to be close to the upper
bound when nodes have no energy intermittency, and significantly higher than the throughput achieved by na¨ıve policies.