… findings, we additionally offer a few pointers for future works. … for a small number of users
for easy setup of coordinates. … device to device communications in downlink cellular system,” …

… as a favourable multiple access scheme for future 5G networks. … owing to the device-to-device
communication capability present in … Coordinated transmission alternatively contributes to …

… D2D, massive multiple input multiple output (MIMO), multi-RAT… , green communication, and
non-orthogonal multiple access (… Zhang, “Coordinated device-to-device local area networks”. …

… proposed as a promising concept in the future network, which extends the traditional …
multi-agent Q-learning algorithm has been presented to help distributed individual device-to-device …

… (CNs), device-to-device (D2D) communications, and wireless … meet the stringent requirements
of the upcoming 5G systems [8,9,… under non-coordinated and coordinated joint NOMA …

… Communications Conference (GLOBECOM), Waikoloa, HI, USA, December 9–13, 2019. The
associate editor coordinating … Our future work will relax this LoS channel model assumption …

… communication technologies [1], 26 leading to wireless body area networks [2], device-to-device
27 communications [3], … the key enabling technique for future IoT networks [25]. Two 110 …

… Finally, we identify future research directions in the field of … several users to the MEC server
onto the same radio resources. This suggests that the BS coordinates centrally how the users …

… cations with cooperative non-orthogonal multiple access (… some researchers have integrated
device-to-device (D2D) com… the D2D technology to a downlink coordinated direct and relay …

… Furthermore, we highlight and classify some of the key challenges of D2D communication
with respect to current and future generation cellular technologies, giving a comprehensive …