Energy and Rate Allocation for Massive Multiple Access With Interference Cancelation

This article addresses the problem of energy and code allocation to many users accessing, under spreading-based nonorthogonal multiple access, a wireless node set up with successive interference cancellation architecture aided by redundancy-check error control. As an application, we consider asynchronous access delay-tolerant satellite system, where employ finite-length channel codes are subject known power unbalance induced distribution channel’s attenuation. The develops, as mathematically tractable approximation massively populated systems, unified framework compute best rules that maximize spectral efficiency network handles asymptotically users. Concretely, presented approach circumvents exponential complexity in number when modeling propagation packet decoding failures through receiver’s scheme. It also enables deterministic analysis more complex features affecting receiver, making related performance optimization amenable systematic tools from differential variational calculus. derived expressions evidence most favorable three-way between energy, rate, reliability for receiver performance. Low-level system simulations carried out validation.