Autonomous Interference Mitigation Scheme for Femtocell Self-Organization Networks

• Main Authors: Wei Xiang Wang, 王威翔
• Other Authors: J. H. Chen
• Format: Others
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/50871784419799076997

碩士 === 長庚大學 === 資訊工程學系 === 99 === Using subcarrier power control and allocation scheme for femtocell base station (FBS) to avoid unwanted co-channel interference (CCI) with mobile users (MUs) and its dominator base station (BS) is an emerging research problem for self-organizing networks (SONs). This paper not only deals with the CCI problem solving but also considers the maximiza- tion of FBSs’ channel utilization with quality-of-service (QoS) requirements of femtocell users (FUs) when available bandwidth is saturated. The proposed scheme dynamically ar- bitrates resources distribution among FUs and intelligently allocates co-channel resources with nearby MUs without causing any CCI. Simulation results show that the channel utilization degree of femtocell can be improved further when the condition of MUs’ transmissions without CCI is required.