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Ph.D. Proposal Oral Exam - Lin Cheng
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Title: Coordination of Millimeter-wave Cells in Fiber-wireless Radio Access Networks for Heterogeneous Mobile Communications
Committee:
Dr. Chang, Advisor
Dr. Barry, Chair
Dr. Ma
Abstract: The objective of the proposed research is to study methods that improve reception quality and mitigate interference in millimeter-wave wireless communications for small-cell coverage in heterogeneous networks. Millimeter-wave bands provide sufficient spectral resource and avoid cross-tier interference with existing low-frequency wireless services in a heterogeneous network. However, coordination over millimeter-wave small cells for combating interference, providing line-of-sight links, and improving system efficiency has stringent requirements on synchronizations and backhaul capacity. As a result, current standards and approaches for the coordination of low-frequency cells based on distributed digital processing can barely apply on millimeter-wave small cells. This work theoretically and experimentally explores new directions of inter-cell interference cancellation and coordinated multi-point transmissions for coordination over millimeter-wave small cells. Different from conventional approaches, the millimeter-wave coordination mechanisms studied in this research are inherent from a fiber-wireless architecture that enables optical processing for millimeter-wave generation, distribution, synchronization, and centralized coordination. Based on the supportive results derived from the preliminary study of the mechanisms, we propose the methods of cooperative multiple-input multiple-output and network-wide coordination based on optical processing and fiber-wireless centralization for multi-cell and multi-user coordination over millimeter-wave small cells. The proposed methods utilize centralized resource and local high-capacity fiber links and are expected to provide transparency and global coherency for efficient coordination and seamless integration with future heterogeneous networks.
Status
- Workflow Status:Published
- Created By:Daniela Staiculescu
- Created:05/03/2016
- Modified By:Fletcher Moore
- Modified:10/07/2016
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