Abstract
Energy management at passive terminal nodes is a critical design goal in the industrial internet of things (IoT) network. This article introduces a programmable low power remote execution unit (REU) based on an 8051 instruction set architecture (ISA) for passive radio frequency identification (RFID) applications in industrial IoT. The REU acts as a passive device processor requiring the interrogator to transmit instructions to be executed over a wireless link. This paper investigates the proposed asynchronous REU implementation with respect to the power consumption, area and speed and also provides a performance comparison to an existing clocked REU implementation. Based on the post-layout simulation results, the proposed asynchronous REU has lower power consumption when compared to the clocked REU operating at higher frequencies. Such a low power REU in the context of passive processing has a significant impact on IoT, a ubiquitous industrial application of RFID technology.
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