Multi-Cell Uplink Interference Management:A Distributed Power Control Method

• 作者: HU Huimin LIU Yuan GE Yiyang WEI Ning XIONG Ke
• 来源期刊: 中兴通讯技术（英文版）
• 年，卷（期）: 2022,（z1）
• 所属期刊栏目: Research Paper
• 页码范围: 56-63
• 页数: 8页
• 语种: 英文
• DOI: 10.12142/ZTECOM.2022S1008

摘要

This paper investigates a multi-cell uplink network, where the orthogonal frequency division multiplexing (OFDM) protocol is considered to mitigate the intra-cell interference. An optimization problem is formulated to maximize the user sup?porting ratio for the uplink multi-cell system by optimizing the transmit power. This paper adopts the user supporting ratio as the main performance metric. Our goal is to improve the user supporting ratio of each cell. Since the formulated optimization problem is non-convex, it cannot be solved by using traditional convex-based optimi?zation methods. Thus, a distributed method with low complexity and a small amount of multi-cell interaction is proposed. Numerical results show that a notable perfor?mance gain achieved by our proposed scheme compared with the traditional one is without inter-cell interaction.