naa a22 4500 510793398 CHVBK 20180411083327.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11277-012-0697-0 doi (NATIONALLICENCE)springer-10.1007/s11277-012-0697-0 Power Control Based on Maximum Power Adaptation in Two-Tier Femtocell Networks [Elektronische Daten] [Qiaoni Han, Kai Ma, Zhixin Liu, Xinping Guan] In recent years, femtocells are receiving considerable attention in mobile communication as a cost-effective means of improving indoor coverage and capacity. A significant technical challenge in the deployment of a large number of femtocells is the management of interference from the underlay of femtocells onto the overlay of macrocell. In this paper, a reasonable and effective interference suppression scheme based on the adaptive adjustment of femtocell users' maximum transmission power is proposed. The highlight of the scheme is the joint design of macrocell users' uplink communication protection and femtocell users' optimal power allocation. The scheme restricts the cross-tier interference at macrocell base station below a given threshold and ensures the optimization of femtocell users' power allocation at each adjustment phase. Last, admission control is also considered, aiming to exploit the network resources more effectively. Simulation results show the superiority of the proposed scheme over the scheme based on the Signal-to-Interference-Plus-Noise Ratio adaptation. We also give some reference on utility function selection by setting different coefficients in the utility function, and show the effectiveness of admission control in both fixed and random network topologies. Springer Science+Business Media, LLC., 2012 Femtocell nationallicence Co-channel interference nationallicence Utility optimization nationallicence Maximum power adaptation nationallicence Admission control nationallicence Han Qiaoni Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Institute of Electrical Engineering, Yanshan University, 066004, Qinhuangdao, China aut Ma Kai Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Institute of Electrical Engineering, Yanshan University, 066004, Qinhuangdao, China aut Liu Zhixin Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Institute of Electrical Engineering, Yanshan University, 066004, Qinhuangdao, China aut Guan Xinping Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Institute of Electrical Engineering, Yanshan University, 066004, Qinhuangdao, China aut Wireless Personal Communications Springer US; http://www.springer-ny.com 70/1(2013-05-01), 331-351 0929-6212 70:1<331 2013 70 11277 https://doi.org/10.1007/s11277-012-0697-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-012-0697-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Han Qiaoni Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Institute of Electrical Engineering, Yanshan University, 066004, Qinhuangdao, China aut NATIONALLICENCE 700 1- Ma Kai Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Institute of Electrical Engineering, Yanshan University, 066004, Qinhuangdao, China aut NATIONALLICENCE 700 1- Liu Zhixin Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Institute of Electrical Engineering, Yanshan University, 066004, Qinhuangdao, China aut NATIONALLICENCE 700 1- Guan Xinping Key Laboratory of Industrial Computer Control Engineering of Hebei Province, Institute of Electrical Engineering, Yanshan University, 066004, Qinhuangdao, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 70/1(2013-05-01), 331-351 0929-6212 70:1<331 2013 70 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer