In this paper we explore the design space of data caches looking for the combinations of design parameters that produce the best results at the smallest sizes. We introduce a technique named Pollution Control Victim Cache (PCVC) which improves the Pollution Control Cache (PCC), is simpler and performs better. Our simulations were run on the SimpleScalar suite running the Commbench benchmarks. Our results indicate that Victim Caches and Stream Buffers do not perform well in the small systems we simulated. The PCC and our PCVC have shown promising results.

This project aimed to create a new communication system with high permeability, expandability, reliability and which scope was appropriate to the environment of the distribution networks, enabling the implementation of monitoration, measurement and control of the devices on electricity distribution networks. The project was completed with field installation of a wireless mesh network fully functional, including end devices and gateways compatibles with the DNP 3.0 and ABNT protocols, covering the power distribution network in the city of Niterói and the street light monitoring and control in the city of Curitiba.

The DLMS (Device Language Message Specification) standard is widely adopted in smart metering systems for utility services, as it defines the mechanisms that enable the standardized and interoperable exchange of data between metering devices. Wi-SUN FAN (Wireless Smart Ubiquitous Network Field Area Network) is a wireless communication standard that has gained increasing attention in the field of smart metering networks, due to its capability to operate in mesh topologies and support multi-hop communications in an efficient and scalable manner. To date, no studies have been reported that evaluate the combined performance of the DLMS and Wi-SUN FAN standards. In this context, this work evaluates the performance of the DLMS standard over a Wi-SUN FAN network through detailed simulations conducted using the Contiki-NG/Cooja platform. The study implements the DLMS data transmission process and evaluates key performance metrics such as Packet Delivery Rate (PDR) and latency, considering both linear and mesh network topologies. The results demonstrate that a Wi-SUN FAN network can provide efficient and reliable communication services, achieving PDR values above 86.02% in both topologies, thereby confirming its feasibility for DLMS-based smart metering applications.