TY - GEN
T1 - Tightly coupled LTE/Wi-Fi/mmWave HetNet using 2C/U plane splitting for 5G networks
AU - Mubarak, Ahmed S.A.
AU - Mohamed, Ehab Mahmoud
AU - Esmaiel, Hamada
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/6/8
Y1 - 2018/6/8
N2 - Integrating the ultra-high capacity millimeter wave (mmWave) band into the existing cellular network is one of the main challenges towards a unified multi-Gbps 5G network. In this paper, a novel hierarchical multi-band heterogeneous network (HetNet) is proposed to efficiently overlay mmWave small cells (SCs) over the legacy LTE eNB. By which, a medium coverage band is used to precisely control the access over the small coverage mmWave band via the proposed concept of sub-clouds; while, the large coverage LTE eNB only controls the access over the distributed sub-clouds. Without loss of generality, Wi-Fi band is used as the medium coverage band in this paper. Consequently, a novel concept of 2C/U plane splitting is introduced. The C1 plane carried by the LTE eNB controls the access between the LTE eNB and the sub-clouds. Whereas, the C2 plane carried by the medium coverage (Wi-Fi) band controls the access among the mmWave SCs inside each sub-cloud. By this distributed control, associated signaling/processing load on both core network (CN) and LTE eNB can be highly relaxed. Analytical and numerical analysis confirm performance superiority of the proposed LTE/Wi-Fi/mmWave HetNet over the conventional LTE/mmWave HetNet in terms of handover (HO) signaling delays and mmWave band usability.
AB - Integrating the ultra-high capacity millimeter wave (mmWave) band into the existing cellular network is one of the main challenges towards a unified multi-Gbps 5G network. In this paper, a novel hierarchical multi-band heterogeneous network (HetNet) is proposed to efficiently overlay mmWave small cells (SCs) over the legacy LTE eNB. By which, a medium coverage band is used to precisely control the access over the small coverage mmWave band via the proposed concept of sub-clouds; while, the large coverage LTE eNB only controls the access over the distributed sub-clouds. Without loss of generality, Wi-Fi band is used as the medium coverage band in this paper. Consequently, a novel concept of 2C/U plane splitting is introduced. The C1 plane carried by the LTE eNB controls the access between the LTE eNB and the sub-clouds. Whereas, the C2 plane carried by the medium coverage (Wi-Fi) band controls the access among the mmWave SCs inside each sub-cloud. By this distributed control, associated signaling/processing load on both core network (CN) and LTE eNB can be highly relaxed. Analytical and numerical analysis confirm performance superiority of the proposed LTE/Wi-Fi/mmWave HetNet over the conventional LTE/mmWave HetNet in terms of handover (HO) signaling delays and mmWave band usability.
UR - https://www.scopus.com/pages/publications/85049168584
U2 - 10.1109/WCNC.2018.8377260
DO - 10.1109/WCNC.2018.8377260
M3 - Conference contribution
AN - SCOPUS:85049168584
T3 - IEEE Wireless Communications and Networking Conference, WCNC
SP - 1
EP - 6
BT - 2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
Y2 - 15 April 2018 through 18 April 2018
ER -