8/5/2023 0 Comments Secure page versus filesafe![]() Also, the performance comparison of energy efficient, NOMA schemes against conventional NOMA is presented. The recent research developments are classified for a better understanding of areas which are lacking attention and needs further improvement. Hence, the effect on the environment, economy, living beings, etc is minimized. These schemes will result in an optimal scenario in which the energy generated for communication is managed sustainably. Non-orthogonal multiple access (NOMA) being the frontier multiple access scheme for 5G, there exists numerous research attempts on enhancing the energy efficiency of NOMA enabled wireless networks while maintaining its outstanding performance metrics such as high throughput, data rates and capacity maximized optimally.The concept of green NOMA is introduced in a generalized manner to identify the energy efficient NOMA schemes. Simulation results reveal that (1) due to the influence of channel estimation errors, the secrecy outage behaviors of two users under ipCSI conditions are worse than those of users with pCSI (2) the secrecy performance of NOMA-MEC is superior to orthogonal multiple access- (OMA-) aided MEC systems and (3) the NOMA-MEC systems have the ability to attain better system throughput and energy efficiency compared with OMA-MEC.Įnergy efficiency is a major concern in the emerging mobile cellular wireless networks since massive connectivity is to be expected with high energy requirements from the network operators. In addition, both throughput and energy efficiency are discussed in the delay-limited transmission mode. To evaluate the impact of Eve on the performance of the NOMA-MEC system, the secrecy outage probability (SOP) expressions for two users with the conditions of imperfect CSI and perfect channel state information (pCSI) are derived. ![]() In this system model, a pair of users offloads their tasks to the MEC server with the existence of an eavesdropper (Eve). This paper investigates a nonorthogonal multiple access- (NOMA-) based MEC system, which is under imperfect channel state information (ipCSI). Mobile edge computing (MEC) is becoming more and more popular because of improving computing power in virtual reality, augmented reality, unmanned driving, and other fields.
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