ABSTRACT The desirability of both the industry and academia is stretched by the expanded performance in the field of fifth generation (5G) communication technologies, consumer electronics, big data analytics, agriculture, and healthcare. Several challenges such as security challenge, design challenge, deployment challenge, and so forth exist in these fields. An apparent and obvious problem is the bounded lifetime of the network. The justification is that massive devices are generally powered by batteries with finite capacities. A new solution has been introduced to address this challenge. That is a very promising technology named backscatter communications (BackCom) with two special features as low‐power and low‐complexity. In BackCom, the concept of passive reflection as well as modulation of an incoming radio frequency wave is used. In 5G and beyond fifth generation (B5G) network, nonorthogonal multiple access (NOMA) technique is highly employed to increase the capacity of communication networks. In case of multi‐cell NOMA networks, the union of these two techniques gives us new outcomes. This new technology gives rise to several new challenges in dense wireless network. In this article, capacity of BackCom network with two transmission techniques is calculated with the consideration of signal‐to‐noise ratio, reflection coefficient, and path loss exponent individually. A comparison has been provided between these two techniques to show the improved performance of NOMA BackCom with OMA.
Shilpi et al. (2026) studied this question.