4.7 Article

5G Wireless Backhaul Networks: Challenges and Research Advances

Journal

IEEE NETWORK
Volume 28, Issue 6, Pages 6-11

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/MNET.2014.6963798

Keywords

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Funding

  1. International Science and Technology Cooperation Program of China [2014DFA11640, 0903]
  2. National Natural Science Foundation of China (NSFC) [61271224, 61301128, 61471180]
  3. NFSC Major International Joint Research Project [61210002]
  4. Hubei Provincial Science and Technology Department [2013BHE005]
  5. Fundamental Research Funds for the Central Universities [2013ZZGH009, 2014QN155]
  6. EU FP7-PEOPLE-IRSES [247083, 318992, 610524]

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5G networks are expected to achieve gigabit-level throughput in future cellular networks. However, it is a great challenge to treat 5G wireless backhaul traffic in an effective way. In this article, we analyze the wireless backhaul traffic in two typical network architectures adopting small cell and millimeter wave communication technologies. Furthermore, the energy efficiency of wireless backhaul networks is compared for different network architectures and frequency bands. Numerical comparison results provide some guidelines for deploying future 5G wireless backhaul networks in economical and highly energy-efficient ways.

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