Optimización del Overlap en las redes WSAN mediante algoritmos matemáticos

Abstract

Given the upgrade towards a production scheme whose main basis is the capa- bility of sharing data between all the devices from the system, Wireless Sensor and Actuator Networks (WSAN) have acquired a major roll within the current industry. One of the main appealing points of this type of networks is the high flexibility and scalability that they posses compared to wired architectures. How- ever, it does not surpass its predecessor in all fields. WSANs have not been able to fully replicate the bandwidth and reliability capacities of its predecessor, but in the industrial area this does not represent an impediment for their implementa- tion and usage. Many industrial applications based on realtime monitoring and audio streaming that involve sensors and actuators only need bandwidth rates up to 250 Kbps [9]. This results in standards like WirelessHART, ISA 100.11a, IEEE 802.15, and 6TiSCH being able to effectively satisfy the reliability need of the systems [15].

Many standards compatible with WSANs support real-time data traffic. Within the most popular ones we can find the Time-Syncronized Channel Hop- ping (TSCH), that stands out thanks to its outstanding features. TSCH has been opening up field in both industrial [3] and automotive [8] environments due to its characteristics of: Time-division multiple-access (TDMA), frequency diversity and centralized scheduling. Given this characteristics, this standard has gained a bigger usage in factory automation and process control applications. Thus, increasing the acceptance and integration of the concepts of Industry 4.0 and Industrial Internet of Things (IIoT)