Cost-Effective User Allocation in 5G NOMA-Based Mobile Edge Computing Systems

Autor: Mohamed Abdelrazek, Yun Yang, Qiang He, Feifei Chen, John Hosking, John Grundy, Phu Lai, Guangming Cui
Rok vydání: 2022
Předmět:
Zdroj: IEEE Transactions on Mobile Computing. 21:4263-4278
ISSN: 2161-9875
1536-1233
DOI: 10.1109/tmc.2021.3077470
Popis: Mobile edge computing (MEC) allows edge servers to be placed at cellular base stations. App vendors like Uber and YouTube can rent computing resources and deploy latency-sensitive applications on edge servers for their users to access. Non-orthogonal multiple access (NOMA) is an emerging technique that facilitates the massive connectivity of 5G networks, further enhancing the capability of MEC. The edge user allocation (EUA) problem faces new challenges in 5G NOMA-based MEC systems. In this study, we investigate the EUA problem in a multi-cell multi-channel downlink power-domain NOMA-based MEC system. The main objective is to help mobile app vendors maximize their benefit by allocating maximum users to edge servers in a specific area at the lowest computing resource and transmit power costs. To this end, we introduce a decentralized game-theoretic approach to effectively select a channel and edge server for each user while fulfilling their resource and data rate requirements. We theoretically and experimentally evaluate our solution, which significantly outperforms various state-of-the-art and baseline approaches.
Databáze: OpenAIRE