Abstract
The long-term outage probability and optimal transmission policy are investigated for the energy harvesting (EH) two-way relay (TWR) network by exploiting a real-data-driven stochastic EH model. In the EH TWR network, two solar-powered source nodes are both equipped with finite-sized batteries, and communicate with each other under the assistance of a conventional relay node. The framework is formulated as a Markov decision process (MDP), and the optimal transmission power values of the two EH nodes are both computed to minimize the long-term outage probability of the network by considering the causal EH condition, the random channel status and the energy amount of the two batteries. In addition, a two-dimensional on-off threshold structure for the optimal transmission policy is uncovered, and then the outage performance limit of the network is presented, in that the long-term outage probability eventually approaches to the deficiency probability of network batteries in sufficiently high SNRs. Computer simulations are demonstrated to verify the theoretical analysis.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call