Research On Resource Allocation For Wireless Virtualized Energy Harvesting Cellular Networks

With the development of Internet communication and the popularity of mobile terminals,wireless network virtualization emerges as the times require,providing efficient customized services for the next generation of wireless networks.The number and type of mobile terminal business requests are expanding and enriching,making the pressure of wireless resources and energy consumption further enhanced.Considering the reduction of equipment and operation cost and energy consumption,an efficient resource allocation strategy is proposed,which can effectively improve the utility function of operators while ensuring the quality of service QoS.Therefore,in the wireless virtual small cell network,this paper proposes two distributed resource allocation optimization scheme to maximize the total utility of MVNOs(mobile virtual network operators).The main contents are as follows:First,a distributed resource allocation optimization scheme is proposed considering the wireless virtual cellular network with the capacity of the base station with energy harvesting and self-backhaul.In the system considered,the total utility function of all MVNOs is maximally improved by optimizing the user association,power and time.Due to the high complexity of the problem,the original problem is divided into three sub problems,and a ADMM based allocation algorithm is proposed to solve the total utility optimization problem.Secondly,considering that the base station is equipped with caching and energy collection capability,the original wireless virtualized small cellular system is improved,and a distributed user association and mixed energy supply information center network resource allocation scheme is proposed.In the system considered,the total utility of MVNOs is maximized by optimizing user association,caching,spectrum,and power.In order to reduce the complexity of the problem,the original problem is divided into two sub problems,and a distributed allocation algorithm based on ADMM is proposed to solve the maximum utility.Finally,the reduction of non renewable energy consumption by energy harvesting is conducive to the establishment of green network.Moreover,the distributed resource allocation scheme proposed in this paper can make InPs(Infrastructure Providers),MVNOs and user three party revenue,and the experiment proves that the algorithm is reasonable and efficient.