Investigation of Non-Orthogonal Multiple Access Techniques for Future Cellular Networks

Iterative Interference Cancellation for Non‐orthogonal Multiple Access System

“…However, when the wireless resources are allocated to users with poor channel conditions, the low spectral efficiency is the main issue for OMA. Moreover, when the number of users desiring to access the network explosively increases, these multiplexing techniques begin to fall short [2] .…”

“…Non-orthogonal multiple access (NOMA) has recently received considerable attention as a promising candidate to address some of the challenges for 5G because of its superior spectral efficiency [1][2][3][4][5][6][7][8][9] . The NOMA technique allows multiple users to overload the same wireless resources by utilizing the superposition coding principle, so that NOMA can enlarge the number of connections by introducing controlled symbol collisions [6] .…”

Multiuser detection for uplink non‐orthogonal multiple access system

“…Due to its superior spectral efficiency, non‐orthogonal multiple access (NOMA) is considered as a promising technology for the future wireless networks (5G) [1–6]. The NOMA technique allows multiple users to overload the same wireless resources by utilising the superposition coding principle, so that NOMA can enlarge the number of connections by introducing controlled symbol collisions [6].…”

Efficient power allocation method for non orthogonal multiple access 5G systems

“…IDMA UPLINK SYSTEM Interleave Division Multiple Access (IDMA) is a promising non orthogonal multiple access system [16][17][18][19], so it has been adopted for consideration in this research. It can be considered as a special case of spread spectrum systems.…”