A utility-based power-control scheme in wireless cellular systems
IEEE/ACM Transactions on Networking (TON)
Uplink capacity and interference avoidance for two-tier femtocell networks
IEEE Transactions on Wireless Communications
Power control in two-tier femtocell networks
IEEE Transactions on Wireless Communications
Interference management and performance analysis of UMTS/HSPA+ femtocells
IEEE Communications Magazine
Interference mitigation using uplink power control for two-tier femtocell networks
IEEE Transactions on Wireless Communications
Femtocells: Technologies and Deployment
Femtocells: Technologies and Deployment
CTRL: a self-organizing femtocell management architecture for co-channel deployment
Proceedings of the sixteenth annual international conference on Mobile computing and networking
Cost-Effective Frequency Planning for Capacity Enhancement of Femtocellular Networks
Wireless Personal Communications: An International Journal
IEEE Communications Magazine
Wireless Personal Communications: An International Journal
Realistic Long Term Evolution Performance for Massive HeNB Residential Deployments
Wireless Personal Communications: An International Journal
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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.