arXiv subjects

Abdullah Saeed Alghotmi

Publications and source records attributed to Abdullah Saeed Alghotmi.

2 recordsLinked to original sources

arXiv2025

Energy-Efficient Ternary Encoding for High-Speed Data Transmission in 3D-Integrated Circuits Using Inductive Coupling Links

This paper proposes a ternary signalling scheme for inductive coupling links (ICLs) in 3D-integrated circuits (3D-ICs) to reduce crosstalk and electromagnetic interference in multi-stacked chip communications. By converting binary data into ternary sequences with three voltage levels (-V, 0V, +V), the approach enhances signal separation, reduces crosstalk, and improves signal integrity. Unlike traditional Non-Return to Zero (NRZ) systems, the ternary scheme increases bandwidth efficiency and reduces power consumption through fewer signal transitions. A modified H-Bridge transmitter generates ternary symbols by controlling current flow based on binary-to-ternary mapping. Preliminary simulations validate the efficiency of the scheme, showing reduced power consumption and higher data rates compared to NRZ. This approach shows promise for high-performance computing and IoT devices in 3D-IC environments, offering enhanced noise resilience, lower power usage, and improved communication efficiency.

cs.CE↗

arXiv2024

Crosstalk in Inductive Coupling Communications for Multi-Stacked Chips

This paper simulates and analyses the crosstalk interference in off-chip and on-chip communications in multi-stacked chips where Inductive Coupling Links (ICLs) are the communication medium. Crosstalk impacts data signals, leading to errors in the receiver when adjacent transmitters communicate simultaneously. We explored techniques to reduce crosstalk, including varying the coil geometry, changing the coil arrays, and using time-interleaving multiplexing. We propose a 1-of-4 technique, where two bits of data are coded into four bits, always including a '1'. Using an electromagnetic simulator, we described crosstalk behaviour and applied the results to Matlab Simulink to obtain bit-error rates (BER). Simulation results showed that the interference-to-signal ratio (ISR) decreased gradually with increased horizontal coil separation. Additionally, we observed that changing the layout arrays for the coils plays a vital role in reducing crosstalk. The 4-phase time interleaving multiplexing and 1-of-4 technique significantly reduced crosstalk at the expense of bandwidth.

eess.SP↗