EE Seminar: Fronthaul Compression for Cloud Radio Access Networks: An Information Theoretic View

~~(The talk will be given in English)

Speaker:  Prof. Shlomo Shamai
                          EE, Technion

Monday, November 9th, 2015
15:00 - 16:00
Room 011, Kitot Bldg., Faculty of Engineering
Fronthaul Compression for Cloud Radio Access Networks: An Information Theoretic View
Abstract
Cloud radio access networks (C-RANs) emerge as appealing architectures for next-generation wireless/cellular systems whereby the processing/decoding is migrated from the local base-stations/radio units (RU) to a control/central units (CU) in the "cloud".
This is facilitated by fronthaul links connecting the RUs to the managing CUs. We focus on oblivious processing at the RU, and hence the fronthaul links carry digital information about the baseband signals, in the uplink from the RUs to the CU and vice versa in the downlink. The high data rate service demands in C-RANs, imply that even with fast (optical) fronthauls, let alone for heterogeneous fronhauls, efficient compression of the basedand signals is essential.
In this talk we focus on advanced robust signal processing solutions, emerging by network information theoretic concepts, and review also the basic approaches to this cloud network.
Multi-hop fronthaul topologies are also discussed.
Analysis and numerical results illustrate the considerable
performance gains to be expected for different cellular models.
Some interesting theoretical directions conclude the presentation.
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Joint work with S.-H. Park, O. Simeone (NJIT), and O. Sahin (InterDigital)