Inter Cell Interference mitigation in OFDMA cellular system

• Main Authors: Chih-Ming Hu, 胡智明
• Other Authors: Yung-Fang Chen
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/57615618868533478076

碩士 === 國立中央大學 === 通訊工程研究所碩士在職專班 === 98 === With the fast development of the wireless communications, the requirement of faster transmission rate has also increased rapidly. The OFDMA technology is considered as a promising candidate for the downlink interface of the next generation wireless systems. However, inter cell interference is an impediment of the throughput performance in the system, especially for Cell Edge Users(CEUs).The main goal is to improve the CEU throughput as well as overall cell throughput. In this thesis, we propose a flexible softer frequency reuse scheme. Several schemes on inter cell interference coordination have been suggested for OFDMA systems. Our algorithm is designed to improve the CEU throughput by optimizing the reuse factor、power factor and packet scheduler priority. From the simulation result, the proposed algorithm can increase the CEU throughput effectively.