Abstract

In order to improve network performance, including reducing computation delay, transmission delay and bandwidth consumption, edge computing and caching technologies are introduced to the fifth-generation wireless network (5G). However, the volume of edge resources is limited, while the number and complexity of tasks in the network are increasing sharply. Therefore, how to provide the most efficient service for network users with limited resources is an urgent problem to be solved. Thus, improving the utilization rate of communication, computing and caching resources in the network is an important issue. The diversification of network resources brings difficulties to network management. The joint resource allocation problem is difficult to be solved by traditional approaches. With the development of Artificial Intelligence (AI) technology, these AI algorithms have been applied to joint resource allocation problems to solve complex decision-making problems. In this paper, we first summarize the AI-based joint resources allocation schemes. Then, an AI-assisted intelligent wireless network architecture is proposed. Finally, based on the proposed architecture, we use deep Q-network (DQN) algorithm to figure out the complex and high-dimensional joint resource allocation problem. Simulation results show that the algorithm has good convergence characteristics, proposed architecture and the joint resource allocation scheme achieve better performance compared to other resource allocation schemes.

Highlights

  • After the frozen of 5G mobile network specification Release 15 on June 2018, the first nationwide commercial 5G network launched in South Korea on April 2019 [1]

  • SYSTEM MODELS we propose three models under the Artificial Intelligence (AI)-assisted intelligent wireless network architecture, including a communication model, a caching model and a computing model respectively

  • COMMUNICATION MODEL In this part, we take the realistic wireless channel between users and gNB into consideration and we model this channel as the finite-state Markov channel (FSMC)

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Summary

INTRODUCTION

After the frozen of 5G mobile network specification Release 15 on June 2018, the first nationwide commercial 5G network launched in South Korea on April 2019 [1]. In the practical wireless system, many traditional resource optimization methods in wireless communication networks are becoming much more performance-constrained and complicated in complex scenarios [9], [10]. Wireless systems [11], learn and make decisions from the dynamic environment, are considered as potential solutions for typical complex and previously intractable problems in future wireless network [12]. In view of those observations, it is necessary to review how to apply AI technology to solve the complicated decision-making problem and boost network performance. Concluding remarks and implementation challenges for AI-based wireless network resource management are addressed

AI ASSISTED INTELLIGENT WIRELESS NETWORK ARCHITECTURE
CACHING MODEL
COMPUTING MODEL
DQN BASED JOINT RESOURCE ALLOCATION PROBLEM FORMULATION
STATE SPACE
ACTION SPACE
REWARD FUNCTION
1: Initialization
RESULTS AND ANALYSIS
CHALLENGES AND SOLUTIONS
CONCLUSION
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