Characterization of radio link reliability

Tele-Radio AB makes radio communication equipment for a wide range of industrial applications.The company's new high-end product line with its increased complexity has a lot of room for optimization since the effects of many parameter settings are not yet understood.In this project, the influence of different parameters is investigated.Specifically, the spatial orientation, transmit power and channel access algorithms such as the listen-before-talk (LBT) and clear channel assessment (CCA) are evaluated.For this, one transmitter/receiver link is set up in an office environment and their performance is measured in packet error rate (PER).Further, the effect of WiFi interference is investigated.In the presence of interference, a strong dependence of the PER on the orientation and the configuration of the channel access algorithms is observed offering the opportunity to increase the performance by reworking them.Without interference, the experimental setup does not achieve enough certainty to draw any conclusions about the influence of any parameter.iv