An Energy-Saving Scheme with Multi-Hop Transmission for mmWave Backhaul Networks

Due to the ultra-dense deployment of small cells in 5G millimeter wave (mmWave) backhaul networks, the consumed energy of transmitting data flows will increase significantly. In this paper, we propose an energy-saving scheme for the mmWave backhaul networks to minimize the energy consumption with the throughput requirements and data flows transmitting order satisfied. In the scheme, based on the concurrent transmission, the Space/Time- Division Multiple Access (STDMA) groups are established and the Joint Time Allocation and Power Control (JTAPC) algorithm is proposed to achieve low energy consumption. Besides, the transmission order for the multi-hop backhaul networks is considered by designing a status indicator. Simulations in the 60 GHz band are conducted to demonstrate the superior performance of our algorithm in energy consumption and system throughput.

[1]  Yun Zhu,et al.  QoS-aware scheduling for small cell millimeter wave mesh backhaul , 2016, 2016 IEEE International Conference on Communications (ICC).

[2]  Xuemin Shen,et al.  Rex: A randomized EXclusive region based scheduling scheme for mmWave WPANs with directional antenna , 2010, IEEE Transactions on Wireless Communications.

[3]  Sheng Chen,et al.  Millimetre-Wave Backhaul for 5G Networks: Challenges and Solutions , 2016, Sensors.

[4]  Vladimir M. Vishnevsky,et al.  Applying graph-theoretic approach for time-frequency resource allocation in 5G MmWave backhaul network , 2016, 2016 Advances in Wireless and Optical Communications (RTUWO).

[5]  Theodore S. Rappaport,et al.  Millimeter Wave Channel Modeling and Cellular Capacity Evaluation , 2013, IEEE Journal on Selected Areas in Communications.

[6]  Yun Zhu,et al.  Regret Benefit Ratio Link Scheduler for Wireless Backhaul With Directional Antennas , 2017, IEEE Transactions on Vehicular Technology.

[7]  Andreas Kassler,et al.  Joint User Association and Energy Aware Routing for Green Small Cell mmWave Backhaul Networks , 2017, 2017 IEEE Wireless Communications and Networking Conference (WCNC).

[8]  Xuemin Shen,et al.  STDMA-based scheduling algorithm for concurrent transmissions in directional millimeter wave networks , 2012, 2012 IEEE International Conference on Communications (ICC).

[9]  Zhongjiang Yan,et al.  MAC protocol framework for 5G mmWave backhaul network , 2016, 2016 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC).

[10]  Kei Sakaguchi,et al.  Traffic adaptive formation of mmWave meshed backhaul networks , 2017, 2017 IEEE International Conference on Communications Workshops (ICC Workshops).

[11]  Giuseppe Caire,et al.  Radio Resource Management Considerations for 5G Millimeter Wave Backhaul and Access Networks , 2017, IEEE Communications Magazine.