Large-Scale MIMO in C-RAN

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To meet the rapidly increasing demand for broadband wireless services over the next decade, internationalstandard bodies have set forth an impressive list of goals for the fifth generation (5G) of wireless systems.Under the acronym IMT-2020, these call for multi-fold increase in data rate, user capacity per unit area, andQuality of Service (QoS), allowing seamless connections that will bring together people and objects in a smartnetworked city. To fulfill these requirements, significant technological advances are needed at all levels of thecommunication model stack, but especially at the physical layer. Within this context, we propose acutting-edge program of research, to take place over the next three years and aimed at providing viableengineering solutions to a critical subset of 5G challenges. Specifically, we will seek to develop and investigateimproved transmission and signal processing schemes for large-scale Multiple-Input Multiple-Output (MIMO)systems operating under a Cloud Radio Access Network (C-RAN). The proposed research is articulated alongtwo main avenues: (1) Hybrid precoding/decoding design for large-scale MIMO; (2) Operation of massiveMIMO under C-RAN. Improvements will be sought in terms of complexity, bandwidth and power efficiency,while performance will be characterized under conditions of operation representative of 5G networks. Thisproposed research program is strongly supported by our industrial sponsor, InterDigital Canada, and has beencarefully crafted with company engineers. Under our current agreement, InterDigital will have primary accessto the new technologies developed by our team, as well as the opportunity to recruit top HQPs trained underthis project. In turns, critical feedbacks from the company will help us maintain a competitive edge andadvance our research along more challenging avenues. The proposed research is intended to help InterDigitaldevelop intellectual property in the area large-scale MIMO within C-RAN, foreseen as a key enablingtechnology for 5G. Our collaborative work will thus create new opportunities for Canada, helping our countryto maintain its position as a global leader in the information sector.