*********************************
There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
*********************************
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.
