Name
Abstract | ||
|---|---|---|
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. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1007/s11277-012-0697-0 | Wireless Personal Communications |
Keywords | Field | DocType |
macrocell base station,optimal power allocation,maximum transmission power,cross-tier interference,macrocell user,maximum power adaptation,effective interference suppression scheme,admission control,proposed scheme,power allocation,femtocell user,power control,two-tier femtocell networks | Base station,Femtocell,Admission control,Computer science,Power control,Co-channel interference,Computer network,Network topology,Underlay,Macrocell | Journal |
Volume | Issue | ISSN |
70 | 1 | 1572-834X |
Citations | PageRank | References |
6 | 0.51 | 15 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Qiaoni Han | 1 | 63 | 8.16 |
| Kai Ma | 2 | 67 | 13.44 |
| Zhixin Liu | 3 | 30 | 3.52 |
| Xinping Guan | 4 | 2791 | 253.38 |