Open AccessAnalytical power allocation for a full‐duplex decode‐and‐forward relay channel
Author(s) -
Emadi Mohammad Javad,
Gholami Davoodi Arash,
Aref Mohammad Reza
Publication year - 2013
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2013.0196
Subject(s) - relay , rayleigh fading , relay channel , computer science , fading , channel (broadcasting) , power (physics) , upper and lower bounds , mathematical optimization , regular polygon , telecommunications , mathematics , mathematical analysis , physics , geometry , quantum mechanics
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.