![]() Hence, it will be possible to benchmark the impact of various CR schemes on a cellular infrastructure through a well-defined set of reproducible test setups.Īnother possibility for external users is to connect via Remote Desktop to the TUD indoor test bed to perform experiments with a fixed setup of one eNB, one UE, National Instruments USRP 2920 and one Signalion HaLo device. The CR transceivers are then activated where the LTE performance parameters are compared for the non-CR and CR case. ![]() The LTE network parameters are constantly monitored and recorded. A predefined test setup is used which provides well defined and reproducible EASY-C LTE traffic – good for the CREW cognitive radio benchmarking initiative. Below are depicted, from left to right: mobile test UE, base station equipment, UE lab equipment.Įxternal users of the TUD test bed need to install their own equipment at the TUD test site. ![]() Stationary and mobile user equipment are used. This BS resides at the faculty of electrical engineering and information technology, TUD. One base station at rooftop level will be used which serves multiple UEs. An LTE-like cellular infrastructure is used where relevant network parameters are measured such as frame error rates, outage events, throughput or latency. The TUD contribution is based on the EASY-C campus infrastructure, i.e, the EASY-C outdoor lab test bed which is directly operated by the Vodafone Chair research team. Cellular use cases and CR-related field trials are provided by the Dresden test bed, which is supervised by TUD. ![]() TUD coordinates the test activities that are related with the EASY-C testbed. ![]()
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