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Journal Article
Cooperative Interference Mitigation Algorithm in Heterogeneous Networks
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- Authors
- Trung Kien VU, Sungoh KWON, Sangchul OH
- Issue Date
- 2015-11
- Citation
- IEICE Transactions on Communications, v.E98.B, no.11, pp.2238-2247
- ISSN
- 1745-1345
- Publisher
- 일본, 전자정보통신학회 (IEICE)
- Language
- English
- Type
- Journal Article
- Abstract
- SUMMARY Heterogeneous hetworks (HetNets) have been introduced as an emerging technology in order to meet the increasing demand for mobile data. HetNets are a combination of multi-layer networks such as macrocells and small cells. In such networks, users may suffer significant cross-layer interference. To manage this interference, the 3rd Generation Partnership Project (3GPP) has introduced enhanced Inter-Cell Interference Coordination (eICIC) techniques. Almost Blank SubFrame (ABSF) is one of the time-domain techniques used in eICIC solutions. We propose a dynamically optimal Signal-To-Interference-And-Noise Ratio (SINR)-based ABSF framework to ensure macro user performance while maintaining small user performance. We also study cooperative mechanisms to help small cells collaborate efficiently in order to reduce mutual interference. Simulations show that our proposed scheme achieves good performance and outperforms the existing ABSF frameworks.
- KSP Keywords
- 3rd generation partnership project(3GPP), Cross-layer, Emerging technology, Inter Cell Interference Coordination(ICIC), Interference mitigation, Macro user, Multi-layer network, Small cells, User Performance, almost blank subframes(ABSs), enhanced Inter-cell Interference Coordination