Browsing by Author "Belattar, Mounir"

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    Performance of a Wireless Network with NonOrthogonal Multiple Access and Energy Harvesting
    (University 20 Août 1955 Skikda, 2025-07-08) ATROUCHE , MABROUK; Belattar, Mounir
    With the rapid advancement of wireless communication technologies and the increasing demand for high-quality services, communication networks face significant challenges in efficiently utilizing the available spectrum. These challenges include increasing network capacity, enabling massive connectivity, enhancing data rates, reducing latency, and minimizing spectrum bandwidth requirements. Traditional approaches, such as Orthogonal Multiple Access (OMA), allocate dedicated resources to each user. However, as the number of users increases, OMA suffers from efficiency limitations. For this reason, the wireless communication research community has been actively exploring more advanced multipleaccess technologies to improve resource efficiency. In this context, Non-Orthogonal Multiple Access (NOMA) has emerged as an innovative solution, particularly for fifth-generation (5G) and beyond networks. In this thesis, we study the performance evaluation of OMA and NOMA systems in downlink networks, focusing on performance analysis in the presence of energy harvesting. NOMA stands out by providing better data transmission rates while reducing information loss. We propose an innovative pairing strategy for a hybrid NOMA system incorporating a fair power allocation algorithm in the downlink network to enhance system performance and user satisfaction. This strategy aims to achieve high performance while ensuring fairness among users. It is evident that NOMA represents the future of wireless communications and plays a crucial role in realizing next-generation 5G and beyond