SWIPT-Enabled Multiple Access Channel: Effects of Decoding Cost and Non-Linear EH Model

We studied power splitting-based simultaneous wireless information and transfer (PS-SWIPT) in multiple access channels (MACs), considering the decoding cost non-linear energy harvesting (EH) constraints at receiving nodes to study practical limitations of an EH communication system. Under these restrictions, we formulated analyzed achievable rate maximum departure regions two well-studied scenarios, i.e., a classical PS-SWIPT MAC with user cooperation. In setting, closed-form expressions for optimal values PS factors are derived fundamental schemes: successive interference cancellation. cooperation, joint allocation users as well factor derived. This reveals that one scheme outperforms other MAC, depending on function type cost. Finally, it is shown cooperation between can potentially boost performance under constraints. Moreover, effects functions, model channel quality studied, characteristics system discussed.