1 research outputs found
A Review on Coexistence Issues of Broadband Millimeter-Wave Communications
With higher frequencies and broader spectrum than conventional frequency
bands, the millimeter-wave (mmWave) band is suitable for next-generation
wireless networks featuring short-distance high-rate communications. As a
newcomer, mmWaves are expected to have the backward compatibility with existing
services and collaborate with other technologies in order to enhance system
performances. Therefore, the coexistence issues become an essential topic for
next-generation wireless communications. In this paper, we systematically
review the coexistence issues of broadband mmWave communications and their
corresponding solutions proposed in the literature, helping shed light on the
insights of the mmWave design. Particularly, the works surveyed in this paper
can be classified into four categories: coexistence with microwave
communications, coexistence with fixed services, coexistence with
non-orthogonal multiple access (NOMA), and other coexistence issues. Results of
numerical evaluations inspired by the literature are presented for a deeper
analysis. We also point out some challenges and future directions for each
category as a roadmap to further investigate the coexistence issues of
broadband mmWave communications.Comment: 17 pages, 7 figure