Experiment of Routing for Mobile Cognitive Radio Base Station (MCRBS)

摘要

Mobile Cognitive Radio Base Station (MCRBS) is an alternative technology for the recovery of telecommunications networks after a natural disaster happens, where routing is then playing an important role. This paper makes experiments for MCRBS routing technology using three universal software radio peripheral (USRP) devices of X310, B200 mini-i, and B210 and uses GNU Radio software. MCRBS has a routing ability to find the best and stable route in carrying information from victims of the disaster area network to the normal networks. One of the best route indicator is the high level of receive signal-to-noise ratio (SNR) to provide small error. The types of routes in MCRBS routing experimented in this paper are (i) direct and (ii) relay routes, where the route is evaluated in terms of bit-error rate (BER) and frame-error rate (FER) performances before being used by the MCRBS. The results show that the relay device at a closer distance to both the transmitter and receiver has better BER and FER performances. This paper found that in some distances, the relay is better used by the MCRBS, otherwise the direct should be selected by the MCRBS. The results of this paper is expected to provide contributions to the development of technology for disaster recovery networks.