News and Events > A Novel Spatial Multiplexing Architecture with Finite Rate Feedback for MIMO Systems

A Novel Spatial Multiplexing Architecture with Finite Rate Feedback for MIMO Systems

Inventors: Yi Jiang, Mahesh Varanasi

It was recently discovered that by deploying multiple transmitting and multiple receiving antennas in a wireless communication system, one can drastically improve the data rate and reliability of wireless communications, even without consuming additional bandwidth and input power.

With the potential of providing reliable high-rate data transmissions, this so-called multi-input multi-output (MIMO) technology will be a core technology in the next-generation wireless communications. CU researchers have developed a novel, efficient, yet easy-to-implement MIMO spatial-multiplexing architecture which has the improved performance over the existing spatial-multiplexing architectures. Existing architectures with equal rate and power per antenna and a fixed order of detection suffer from error propagation problems. The proposed architecture by CU inventors is able to achieve the diversity-multiplexing (D-M) gain tradeoff which is quite close to the optimal with easy-to-implement independent scalar coding. The simulation result verifies the superior performance of the architecture over the conventional open- systems. This technology is expected to deliver significant throughput-at-range improvements in real-world wireless communications. The Technology Transfer Office has the challenge of getting this invention adopted into newly forming wireless standards.

If you have experience with the standards process, please contact Kate Tallman at 303-492-5732.