Ferney Amaya Fernández

Colombian Case Study for the Analysis of Open Data Government: a Data Quality Approach

Public entities have high volumes of stored government data that serve as a source of information for their management, improve the provision of services and interaction with the community, generating social and economic value. Some public administrations, despite being interested in opening the data, have faced obstacles to disseminate them, especially when data are of poor quality. The objective of this paper is to present the importance of evaluating the quality of the data sets that comply with the open format and that are published by public entities for the use of the community, being the case study the public administration of the municipality of Sabaneta The level of quality of open government data is evaluated in three dimensions: Precision, integrity and consistency, to propose strategies and data quality indicators for the improvement of Open Government Data (DGA) to be published.

Penalización de ancho de banda en redes de acceso óptico que utilizan el formato de modulación DPSK

En este artículo se analiza el impacto del ancho de línea en el desempeño de una red de acceso óptica en la que se emplea el formato de modulación DPSK. Se demostró, mediante simulaciones, el efecto del ancho de línea sobre la BER (Bit Error Rate). Se analizó el desempeño para diferentes velocidades de transmisión y valores de dispersión en la fibra óptica. DPSK es un formato simple y de menor costo comparado con el uso de detección coherente, DPSK. Se encontró que puede emplearse un mayor ancho de línea al incrementar la tasa de bits, lo que significa un menor costo de implementación. Se propone a DPSK como el siguiente paso en la actualización de la red de acceso actual que emplea modulación en intensidad. In this paper we analyze the impact of the linewidth over the performance of an optical link in an optical access network that employs the DPSK modulation format. We use simulations to measure the BER when the linewidth of the optical transmitter changes. We analyze the link performance with different data bit rates and different dispersion values of the optical fiber. DPSK is a cheaper and simpler solution compared with coherent detection. We found that is required a higher linewidth when the bit rate increases. This implies a lower cost of implementation of the access network. In this case, DPSK could be the next stage to upgrade the intensity modulation format used in the access networks.