no code implementations • 19 Jul 2022 • Arjuna Madanayake, Viduneth Ariyarathna, Suresh Madishetty, Sravan Pulipati, R. J. Cintra, Diego Coelho, Raíza Oliveira, Fábio M. Bayer, Leonid Belostotski, Soumyajit Mandal, Theodore S. Rappaport
Arithmetic complexity due to multiplication is reduced from the FFT complexity of $\mathcal{O}(N\: \log N)$ for DFT realizations, down to zero, thus yielding a 46% and 55% reduction in chip area and dynamic power consumption, respectively, for the $N=32$ case considered.
no code implementations • 8 Mar 2022 • Shihao Ju, Yunchou Xing, Ojas Kanhere, Theodore S. Rappaport
Sub-Terahertz (THz) frequencies between 100 GHz and 300 GHz are being considered as a key enabler for the sixth-generation (6G) wireless communications due to the vast amounts of unused spectrum.
no code implementations • 8 Mar 2022 • Dipankar Shakya, Dmitry Chizhik, Jinfeng Du, Reinaldo A. Valenzuela, Theodore S. Rappaport
For 28 GHz with 1 W/polarization transmit power in the urban street grid, the downlink data rates for 90% of outdoor users are estimated at over 250 Mbps.
no code implementations • 12 Jun 2021 • Dipankar Shakya, Ting Wu, Michael E. Knox, Theodore S. Rappaport
This paper presents a compact sliding correlation-based channel sounder baseband built on a monolithic integrated circuit (IC) using 65 nm CMOS, implemented as an evaluation board achieving a 2 GHz RF bandwidth.
no code implementations • 9 Mar 2021 • Shihao Ju, Theodore S. Rappaport
Compared to the correlation distances reported in the 3GPP TR 38. 901 for frequencies below 100 GHz, the measured correlation distance of shadow fading at 142 GHz (3. 8 m) is much shorter than the 10-13 m as specified in 3GPP; the measured correlation distances of delay spread and angular spread at 142 GHz (both 12 m) are comparable to the 7-10 m as specified in 3GPP.
Information Theory Information Theory
no code implementations • 1 Dec 2020 • Ahmed Iyanda Sulyman, Abdulmalik Alwarafy, George R. MacCartney, Theodore S. Rappaport, Abdulhameed Alsanie
Fifth-generation (5G) cellular systems are likely to operate in the centimeter-wave (3-30 GHz) and millimeter-wave (30-300 GHz) frequency bands, where a vast amount of underutilized bandwidth exists world-wide.
no code implementations • 28 Sep 2020 • Dipankar Shakya, Ting Wu, Theodore S. Rappaport
Wide swaths of bandwidth at millimeter-wave (mmWave) and Terahertz (THz) frequencies stimulate diverse applications in wireless sensing, imaging, position location, cloud computing, and much more.
no code implementations • 27 Sep 2020 • Shihao Ju, Yunchou Xing, Ojas Kanhere, Theodore S. Rappaport
Millimeter-wave (mmWave) and Terahertz (THz) will be used in the sixth-generation (6G) wireless systems, especially for indoor scenarios.
1 code implementation • 19 Mar 2015 • Ting Wu, Theodore S. Rappaport, Christopher M. Collins
With increasing interest in millimeter wave wireless communications, investigations on interactions between the human body and millimeter wave devices are becoming important.
Emerging Technologies