Low power and long range machine-to-machine (M2M) communication techniques are
expected to provide ubiquitous connections for the wireless devices. In this paper, three …

Massive access, also known as massive connectivity or massive machine-type
communication (mMTC), is one of the main use cases of the fifth-generation (5G) and …

Multiple access is the cornerstone technology for each generation of wireless cellular
networks, which fundamentally determines the method of radio resource sharing and …

Multicarrier CDMA is a multiplexing approach in which modulated QAM symbols are spread
over multiple OFDMA tones by using a generally complex spreading sequence. Effectively, a …

Non-orthogonal multiple access (NOMA) has been recognized as a promising multiple
access technique for the next generation cellular communication networks. In this paper, we …

Non-orthogonal multiple access (NOMA) as an efficient method of radio resource sharing
has its roots in network information theory. For generations of wireless communication …

To address the vast variety of user requirements, applications, and channel conditions,
flexibility support is strongly highlighted for 5G radio access technologies (RATs). For this …

The rapid traffic growth and ubiquitous access requirements make it essential to explore the
next generation (5G) wireless communication networks. In the current 5G research area, non …

Practical schemes for measurement-device-independent quantum key distribution using
phase and path or time encoding are presented. In addition to immunity to existing …

Sparse code multiple access (SCMA) is one of the most promising methods among all the
non-orthogonal multiple access techniques in the future 5G communication. Compared with …