An Adaptive QR Decomposition Processor for Carrier Aggregated LTE-A

Run reference : S28I15_2 - IC STMicroelectronics 28nm Advanced CMOS FDSOI 8 ML CMOS28FDSOI (datasheet)

S28I15_2 eitmay15a_qrd_lte_ca

A QR Decomposition processor is often used in small scale MIMO systems to enhance performance. The fabricated circuit is an adaptive version of the QRD process, capable of meeting the requirements for 100 MHz Carrier Aggregated LTE-A. The measurement results indicate that forward body biasing can double the operational frequency and a combination of supply scaling and body biasing leads to a reduction of power dissipation for a required throughput.