Performance analysis of EH-DAS based on RAU zooming and User scheduling

The unstable energy of EH-DAS poses a challenge to system performance. For this reason, this article considers dynamic adjustment of RAU power and user scheduling in EH-DAS to gain sustainable operation of EH-DAS and decrease the communication outages caused by coverage zooming. First, a system mode...

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Bibliographic Details
Published in2021 International Conference on Communications, Information System and Computer Engineering (CISCE) pp. 781 - 785
Main Authors Wang, Zhen, Xiao, Kun, Fu, Deli
Format Conference Proceeding
LanguageEnglish
Published IEEE 14.05.2021
Subjects
Coverage Zooming
Distributed Antenna System
Dynamic scheduling
Energy efficiency
Energy Harvesting
Processor scheduling
Quality of service
Real-time systems
Simulation
System performance
User Scheduling
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Summary:The unstable energy of EH-DAS poses a challenge to system performance. For this reason, this article considers dynamic adjustment of RAU power and user scheduling in EH-DAS to gain sustainable operation of EH-DAS and decrease the communication outages caused by coverage zooming. First, a system model combining coverage zooming and user scheduling is established and an optimization problem targeting at maximizing energy efficiency is formulated under the constraints of required user quality of service and maximum transmit power of EH-RAU. Then, the problem is decomposed into two sub-problems of user scheduling and energy efficiency maximization. In order to solve the problem in real time, a Find-DMU scheme is designed and combined with the improved particle swarm optimization (PSO) algorithm to obtain the optimal solution. The simulation results show that the proposed model has good performance in terms of system energy efficiency, outage performance, and optimization speed.
DOI:10.1109/CISCE52179.2021.9445936