The next wave of wireless technologies is proliferating in connecting things among
themselves as well as to humans. In the era of the Internet of Things (IoT), billions of …

In the fifth generation (5G) of wireless communication systems, hitherto unprecedented
requirements are expected to be satisfied. As one of the promising techniques of addressing …

Non-orthogonal multiple access (NOMA) is one of the promising radio access techniques for
performance enhancement in next-generation cellular communications. Compared to …

The rapidly increasing number of mobile devices, voluminous data, and higher data rate are
pushing to rethink the current generation of the cellular mobile communication. The next or …

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 …

Mobile communication systems are always in continuous evolution due to the demands of
the end-users using this technology. Therefore, before the possible launch of 5G, some …

The communication industry is rapidly advancing towards 5G and beyond 5G (B5G) wireless
technologies in order to fulfill the ever-growing needs for higher data rates and improved …

Existing work regarding the performance comparison between nonorthogonal multiple
access (NOMA) and orthogonal multiple access (OMA) can be generally divided into two …

One key advantage of 4G OFDM system is the relatively simple receiver implementation due
to the orthogonal resource allocation. However, from sum-capacity and spectral efficiency …

The forecast for future 10 years' traffic demand shows an increase in 1000 scales and more
than 100 billion connections of Internet of Things, which imposes a big challenge for future …