TY - PAT A1 - Wimmer, Lara A1 - Krishnegowda, Karthik A1 - Methfessel, Michael A1 - Kraemer, Rolf T1 - PSSS Radio Communication Technology for High Data Rates Y1 - 2018 ER - TY - PAT A1 - Wimmer, Lara A1 - Krishnegowda, Karthik A1 - Methfessel, Michael A1 - Kraemer, Rolf T1 - Verfahren zur Synchronisation in einem PSSS Closed-Loop Funksystem Y1 - 2019 ER - TY - CHAP A1 - Rehman Javed, Abdul A1 - Scheytt, J. Christoph A1 - Bammidi, Eswara Rao A1 - Kallfass, Ingmar A1 - Krishnegowda, Karthik A1 - Kraemer, Rolf ED - Kraemer, Rolf ED - Scholz, Stefan T1 - Real100G.COM T2 - Wireless 100 Gbps and beyond : architectures, spproaches and findings of German Research Foundation (DFG) priority programme SPP 1655 Y1 - 2020 SN - 978-3-96439-003-5 SP - 231 EP - 293 PB - IHP GmbH CY - Frankfurt (Oder) ET - 1. Auflage ER - TY - CHAP A1 - Scheytt, J. Christoph A1 - Rehman Javed, Abdul A1 - Bhutani, Akanksha A1 - Zwick, Thomas A1 - Kallfass, Ingmar A1 - Bammidi, Eswara Rao A1 - Krishnegowda, Karthik A1 - Kraemer, Rolf ED - Kraemer, Rolf ED - Scholz, Stefan T1 - Real100G - Ultrabroadband Wireless Communication at High mm-Wave Frequencies T2 - Wireless 100 Gbps and beyond : architectures, spproaches and findings of German Research Foundation (DFG) priority programme SPP 1655 Y1 - 2020 SN - 978-3-96439-003-5 SP - 213 EP - 230 PB - IHP GmbH CY - Frankfurt (Oder) ET - 1. Auflage ER - TY - GEN A1 - Wen, Jianan A1 - Baroni, Andrea A1 - Perez, Eduardo A1 - Uhlmann, Max A1 - Fritscher, Markus A1 - KrishneGowda, Karthik A1 - Ulbricht, Markus A1 - Wenger, Christian A1 - Krstic, Milos T1 - Towards reliable and energy-efficient RRAM based discrete fourier transform accelerator T2 - 2024 Design, Automation & Test in Europe Conference & Exhibition (DATE) N2 - The Discrete Fourier Transform (DFT) holds a prominent place in the field of signal processing. The development of DFT accelerators in edge devices requires high energy efficiency due to the limited battery capacity. In this context, emerging devices such as resistive RAM (RRAM) provide a promising solution. They enable the design of high-density crossbar arrays and facilitate massively parallel and in situ computations within memory. However, the reliability and performance of the RRAM-based systems are compromised by the device non-idealities, especially when executing DFT computations that demand high precision. In this paper, we propose a novel adaptive variability-aware crossbar mapping scheme to address the computational errors caused by the device variability. To quantitatively assess the impact of variability in a communication scenario, we implemented an end-to-end simulation framework integrating the modulation and demodulation schemes. When combining the presented mapping scheme with an optimized architecture to compute DFT and inverse DFT(IDFT), compared to the state-of-the-art architecture, our simulation results demonstrate energy and area savings of up to 57 % and 18 %, respectively. Meanwhile, the DFT matrix mapping error is reduced by 83% compared to conventional mapping. In a case study involving 16-quadrature amplitude modulation (QAM), with the optimized architecture prioritizing energy efficiency, we observed a bit error rate (BER) reduction from 1.6e-2 to 7.3e-5. As for the conventional architecture, the BER is optimized from 2.9e-3 to zero. KW - RRAM Y1 - 2024 SN - 978-3-9819263-8-5 SN - 979-8-3503-4860-6 U6 - https://doi.org/10.23919/DATE58400.2024.10546709 SN - 1558-1101 SP - 1 EP - 6 PB - IEEE ER -