A MAC Protocol with Time Reversal for Wireless Networks within Computing Packages
Ama Bandara, Abhijit Das, F\'atima Rodr\'iguez-Gal\'an, Eduard, Alarc\'on, Sergi Abadal

TL;DR
This paper introduces a Time Reversal-based MAC protocol for Wireless Network-on-Chip, enhancing bandwidth and reducing latency in many-core processors by mitigating interference through focused energy transmission.
Contribution
It proposes a novel TR-MAC protocol that manages parallel transmissions using time reversal and focused energy detection, improving wireless communication efficiency within chip packages.
Findings
TR-MAC improves latency and throughput in WNoC.
The protocol effectively manages multiple parallel transmissions.
It meets the physical layer requirements for on-chip wireless networks.
Abstract
Wireless Network-on-Chip (WNoC) is a promising concept which provides a solution to overcome the scalability issues in prevailing networks-in-package for many-core processors. However, the electromagnetic propagation inside the chip package leads to energy reverberation, resulting in Inter-Symbol Interference (ISI) with high delay spreads. Time Reversal (TR) is a technique that benefits the unique time-invariant channel with rich multipath effects to focus the energy to the desired transceiver. TR mitigates both ISI and co-channel interference, hence providing parallel communications in both space and time. Thus, TR is a versatile candidate to improve the aggregate bandwidth of wireless on-chip networks provided that a Medium Access Control (MAC) is used to efficiently share the wireless medium. In this paper, we explore a simple yet resilient TR-based MAC protocol (TR-MAC) design for…
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Taxonomy
TopicsWireless Body Area Networks · Ultra-Wideband Communications Technology · Security in Wireless Sensor Networks
