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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Feng-Seng Chu Chia-Han Lee Kwang-Cheng Chen |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Electr. Eng. & Grad. Inst. of Commun. Eng., Nat. Taiwan Univ. Taipei, Taipei, Taiwan (Feng-Seng Chu; Kwang-Cheng Chen) || Res. Center for Inf. Technol. Innovation, Taipei, Taiwan (Chia-Han Lee) |
| Abstract | Femtocell base stations (FBSs) have been widely considered in the next generation cellular systems to enhance spectrum efficiency, but macro-femto and femto-femto interferences are still challenging issues to solve. In this paper, we consider the backhaul interface of FBSs to be home broadband connection (such as ADSL and optical fiber) with capacity lower than the air interface, and propose a novel resource optimization for FBSs to mitigate both the macro-femto and femto-femto interferences. First, the user rate requirements are normalized according to the backhaul capacity. Then, the total spectrum utilized by FBSs is minimized to alleviate the macro-femto interference. To reduce the femto-femto interference, we integrate the Gibbs sampler into the resource optimization to make each FBS select the frequency bands which have lower probability to introduce interference. Via sophisticated simulations based on the 3GPP femtocell evaluation scenario, the resource optimization is demonstrated to be effective and ready for LTE-A. |
| Starting Page | 1485 |
| Ending Page | 1489 |
| File Size | 382614 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781479930838 |
| DOI | 10.1109/WCNC.2014.6952409 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-04-06 |
| Publisher Place | Turkey |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Interference Signal to noise ratio Optimization Ultrafast optics Throughput Base stations Macrocell networks OFDMA Femtocell interference mitigation backhaul constraint resource optimization |
| Content Type | Text |
| Resource Type | Article |
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