Point of contact
Kinda Khawam, UVSQ, email@example.com
The communication goal of 6 G is that anyone can interact with any related object at any time and anywhere. To maintain network systems with ultra high data rate and drastically low latency, 6G will utilize much broader frequency bands. As high frequency bands suffer from high path-loss, the data transmission distance will shrink and the 6G network will become extremely dense.
Therefore, high-speed and low-latency D2D communication and ultra-massive MIMO communication will be the paramount in 6G to cope with the limited distance. As a consequence, ultra-dense heterogenous networking is a key feature of 6G. Although 5G has already practiced dense network deployment, 6G networks need further densification which poses many challenges, such as severe interference, highly complex resource management, intensive signaling, high cost and energy consumption, etc.
AI is surely, through sensing and network big data training, the most promising approach to tackle such complex efficient network management.
An important challenge in that hot topic is to improve NOMA (non- orthogonal multiple access) to realize massive connectivity, however, NOMA still fails to meet stringent quality of service and reliability, and couple it with massive MIMO through intelligent cooperation base stations. Further, NOMA still lack the necessary flexibility required by 6G access networks.
A few references
- S. Zhang, J. Liu, H. Guo, M. Qi, N. Kato, Envisioning device-to-device communications in 6G, IEEE Netw. 34 (3) (2020) 86–91.
- K. David, J. Elmirghani, H. Haas, and X. You, Defining 6G: Challenges and opportunities, IEEE Vehicular Technology Magazine, vol. 14, no. 3, pp. 14–16, Sept. 2019.
- Y. Al-Eryani and E. Hossain, “The D-OMA Method for Massive Multiple Access in 6G: Performance, Security, and Challenges,” IEEE Vehicular Technology Magazine, vol. 14, no. 3, pp. 92–99, Sep. 2019.
- Z. E. Ankarali, B. Peköz, and H. Arslan, “Flexible Radio Access Beyond 5G: A Future Projection on Waveform, Numerology, and Frame Design Principles,” IEEE Access, vol. 5, pp. 18 295–18 309, Mar. 2019.