EVALUATING OUTAGE PROBABILITY IN ONE-WAY COOPERATIVE NETWORKS WITH ENERGY HARVESTING USING TIME SWITCHING AND NOMA

Tóm tắt

This paper investigates the outage probability of a one-way cooperative network incorporating energy harvesting  using the time- switching (TS) protocol and employing a non-orthogonal multiple access (NOMA) technique. The system model consists of a source node and a relay node, which amplifies and forwards (AF) the signal to two destination nodes. The model adopts a successive interference cancellation (SIC) technique over Rayleigh fading channels. The study provides a detailed analysis of the signal transmission process to both destinations and derives mathematical expressions for calculating the outage probability. The Monte Carlo simulation method is utilized to evaluate the outage probability based on various factors such as signal-to-noise ratio (SNR), time-switching ratio, and other system parameters to assess their impact on system performance. Consequently, the study identifies the best performance outcomes, providing a foundation for the analysis and evaluation of the model's operational efficiency. The model's novelty lies in its ability to leverage the advantages of AF relaying, including architectural simplicity, low processing latency, and low deployment cost. As a result, the model becomes a suitable solution, effectively meeting the requirements of IoT and real-time communication applications.