Reconfigurable Intelligent Surfaces May Become a Key Technology for Future Wireless Networks

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By Fei Liu | 4Q 2021 | IN-6314


RIS is a Low-Power, Cost-Effective and Sustainable Technology to Improve Network Capability


5G has been deployed globally, with the key enabling technology being massive Multiple Input/Multiple Output (MIMO). Although it is offering a capacity boost compared to previous cellular systems, it still faces several challenges, including high energy consumption and high cost. Moreover, 5G deployments still focus on traditional deployment process, meaning that new equipment needs to be deployed on existing cell sites or new sites are necessary for wide coverage. However, there are now new types of technologies being developed to reduce energy consumption, cost, and enhance network capability. Reconfigurable Intelligent Surfaces (RIS) has emerged as a low-power, cost-effective, and sustainable technology to address the issues and improve network performance.

RIS could be a real value-added technology, but certain technical challenges must be adequately addressed before it gets integrated into future communication standards and move towards commercialization. On October 4, 2021, the European Telecommunications Standards Ins…

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