Journal
IEEE WIRELESS COMMUNICATIONS
Volume 23, Issue 1, Pages 72-79Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/mwc.2016.7422408
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Funding
- International Science and Technology Cooperation Program of China [2014DFA11640, 2015DFG12580]
- National Natural Science Foundation of China (NSFC) [61271224, 61301128, 61471180]
- NSFC Major International Joint Research Project [61210002]
- China 863 Project in 5G Wireless Networking [2014AA01A701]
- Hubei Provincial Science and Technology Department [2013BHE005]
- Fundamental Research Funds for the Central Universities [2015XJGH011, 2014QN155]
- EU FP7-PEOPLE-IRSES [247083, 318992, 612652, 610524]
- EU [641985]
- Australian Research Council [DP110100538, DP120102030]
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Traditional ultra-dense wireless networks are recommended as a complement for cellular networks and are deployed in partial areas, such as hotspot and indoor scenarios. Based on the massive multiple-input multi-output antennas and the millimeter wave communication technologies, the 5G ultra-dense cellular network is proposed to deploy in overall cellular scenarios. Moreover, a distribution network architecture is presented for 5G ultra-dense cellular networks. Furthermore, the backhaul network capacity and the backhaul energy efficiency of ultra-dense cellular networks are investigated to answer an important question, that is, how much densification can be deployed for 5G ultra-dense cellular networks. Simulation results reveal that there exist densification limits for 5G ultra-dense cellular networks with backhaul network capacity and backhaul energy efficiency constraints.
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