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Robust coordinated transmission for cooperative small cell networks

Title
Robust coordinated transmission for cooperative small cell networks
Authors
Kim, YonggangPark, Kyung-JoonPark, DaeyoungLim, Hyuk
DGIST Authors
Park, Kyung-Joon
Issue Date
2016-11-03
Citation
IET Communications, 10(16), 2184-2191
Type
Article
Article Type
Article
ISSN
1751-8628
Abstract
Within a macrocell with a large coverage area, multiple small cells are deployed such that each small cell base station (SBS) supports wireless service demands from user equipments (UEs). Each UE can be simultaneously served by multiple SBSs for quality of service (QoS) enhancement. When there exist hotspot areas with a number of UEs, the SBSs near the hotspot areas may experience a higher resource utilisation level than those outside of the hotspot areas, resulting in a shortage of available resources. The authors propose a robust resource-utilisation-based coordinated transmission for heterogeneous networks with a locally different level of traffic demands. In the utilisation-based coordinated transmission, low-utilisation SBSs with a small number of UEs are selected to serve a newly joining UE because they have more capacity to serve requests with bursty traffic demand. They further formulate the selection of cooperative SBSs as a robust optimisation problem in order to ensure that UEs have sufficiently high signal-to-interference-plus-noise ratios, even with channel estimation inaccuracy and strong interference from non-cooperative SBSs. The simulation results indicate that the proposed method guarantees robust and efficient service performance in heterogeneous small cell networks. © The Institution of Engineering and Technology.
URI
http://hdl.handle.net/20.500.11750/5064
DOI
10.1049/iet-com.2016.0217
Publisher
Institution of Engineering and Technology
Related Researcher
  • Author Park, Kyung-Joon CSI(Cyber-Physical Systems Integration) Lab
  • Research Interests Design of Wireless Network for Cyber-Physical System; 무선 센서 네트워크; 강인 무선 네트워크
Files:
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Collection:
Department of Information and Communication EngineeringCSI(Cyber-Physical Systems Integration) Lab1. Journal Articles


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