Now-days Internet of things (IoT) is changing the Internet vision. IoT architectures
are employed in our daily lives in many applications and in a ubiquitous way. Tech-
nological advancements together with cloud computing paradigms are bootstrap in
this process. In this context, the FIWARE platform, developed by the European FI-
PPP project, aims to be a key player in this new internet vision, offering the means
to build new applications that can benefit from high IoT service availability. De-
spite the QoS it has been identified as a key non-functional requirement to enable
many IoT-related applications, the FIWARE IoT platform doesn’t provide QoS nego-
tiation and resource allocation functionalities. In this work we propose a solution
for QoS support in the FIWARE IoT architecture. We start analyzing the different
component of the FIWARE platform. Then we choose the RTTA heuristic algorithm
to solve the problem of QoS-aware service selection and we modify it to obtain a
larger set of service selection solutions. Finally, once we establish a deployment us-
ing a meaningful set of FIWARE IoT modules, we design and develop a QoS support
in FIWARE, using the modified RTTA heuristic algorithm. At last, we show through
simulations that the set of solutions of the new RTTA algorithm is larger than the
original one and we validate the integration of our solution in FIWARE through a
use case scenario.