Analytical power allocation for a full‐duplex decode‐and‐forward relay channel
Mohammad Javad Emadi, Arash Gholami Davoodi, Mohammad Reza Aref · IET Communications · 2013
For a fading full‐duplex decode‐and‐forward relay channel, the authors analytically derive optimum power allocation schemes subject to individual power constraints at the source and the relay. The authors prove that the problem is a convex optimisation problem over the feasible power set, and by proposing a systematic technique to solve min–max problems, optimum power allocations are derived in closed‐forms. Finally, for a Rayleigh‐fading channel model, optimum power allocations are derived and the respective achievable rate and an upper bound are evaluated. The implications of the derived theoretical results are discussed through some graphs.