Abstract
Machine to Machine technology has a broad application prospect in the 5G network, but there is a bottleneck in the energy consumption of intelligent devices powered by the battery. In this paper, we study the energy-saving strategy in the 5G millimeter-wave system. Firstly, a Discontinuous Reception scheme based on Beam Measurement (BM-DRX) is proposed to avoid unnecessary beamforming. Secondly, we modified the frame structure and optimized the beamforming to short the beamforming time and save the power consumption. Finally, based on the European Telecommunications Standards Institute data model, we used the semi-Markov process to analyze the BM-DRX by considering the beam misalignment events as a Poisson distribution. Simulation results show that the proposed scheme can not only meet the delay performance, but also save the energy consumption of the system.
Highlights
In the Fifth Generation (5G) communication networks, some strategies are used to satisfy the demands of growing data capacity, data rate and provide the best quality of service requirements
Because most of the devices are powered by battery, such as intelligent wearable devices, UAVs, intelligent electric meters, the power saving of intelligent device is a crucial issue for the 5G M2M network
Unnecessary beamforming is avoided, and several methods are used to reduce the time of beamforming and reduce the adverse effects caused by beam misalignment
Summary
In the Fifth Generation (5G) communication networks, some strategies are used to satisfy the demands of growing data capacity, data rate and provide the best quality of service requirements. FR2 ranges from 24250 MHz to 52600 MHz, which are commonly referred to as mmWave Some technology such as beamforming are use in 5G network. References [1], [2] show that millimeter wave spectrum can support high-speed data rate by using beamforming technology with multi-antenna arrays. Due to 3GPP supports DRX integration in 5G network [6], so we study DRX related energy saving strategy of M2M in 5G Millimeter Wave System, combing with beamforming, optimization of 5G frame structure and etc. When the sleep-ready timer expires with beam alignment and no data arrival, go to sleep state It can reduce the impact of the beam misalignment in the case of no data arrival, and turn into the sleep state as frequently as possible to save energy. A Semi-Markov model of eight states is established to evaluate the impact of beam misalignment events on the performance of the whole DRX scheme
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