b'An innovative secure andSecurity can be designed into low resolution sixth generation multiple energy efficient sub- input multiple output systems that operate in the 100-300 GHz bands.terahertz wireless systemS ince high-resolution analog-to-digital converters in the multiple input multiple output (MIMO) systems become a power consumption bottleneck for sixth generationfor use in sixth generation (6G) radio equipment that operates in sub-terahertz bands, low resolution analog-to-digital converters with 1-3 bits instead of 6-12 bits along with low-bit digital-to-analog converters are necessary. This research proved the principle that security can still be designed into low resolution 6G systems.We achieved the following results to maintain secrecy capacity in low resolution 6G PROJECT NUMBER:systems for robustness to eavesdropping: 1) methods to evaluate secrecy capacity 22A1059-031FP for small systems with low signal-to-noise ratio and approximate secrecy capacity TOTAL APPROVED AMOUNT:for large systems with high signal-to-noise ratio, 2) proposed directional modulation $825,000 over 2 yearsthat minimizes bit error rate toward the intended receiver and demonstrated its effectiveness, 3) concluded that while using some of the transmit power for PRINCIPAL INVESTIGATOR:artificial noise or symbols can be effective for high-resolution MIMO systems, it Arupjyoti Bhuyan does not provide the same benefit for low resolution MIMO systems. Instead, signal CO-INVESTIGATOR: processing techniques such as directional modulation can be used for maintaining Robert Heath, North Carolina State University necessary secrecy capacity in the 6G MIMO systems with low resolution. Secure low resolution MIMO system with the transmitter using bT-bit digital to analog converter (DAC), intended receiver with bM-bit and eavesdropper with bE bit analog to digital converters (ADCs).120'