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- Title
Implementation of Spectrum-Sensing for Cognitive Radio Using USRP with GNU Radio and a Cloud Server.
- Authors
Huynh Thanh Thien; Rene Tendeng; Hiep Vu-Van; Insoo Koo
- Abstract
In cognitive radio (CR), spectrum sensing is an essential function since secondary users (SUs) must determine whether the primary user (PU) is utilizing the channel or not, and furthermore, SUs opportunistically access the licensed channel when the PU is absent. In this paper, spectrum sensing is implemented by energy detection, and a software-defined radio testbed is built to evaluate sensing performance by energy detection in a real environment. In particular, the testbed was built based on the GNU’s Not Unix (GNU) Radio software platform and Universal Software Radio Peripheral National Instruments 2900 devices. More specifically, a new block of energy detection is developed by using an out-of-tree module from GNU Radio. To successfully integrate CR into the cloud computing paradigm, we also implement cloud computing-based spectrum sensing by utilizing a cloud server with ThingSpeak, such that we can store, process, and share the sensing information more efficiently in a centralized way in the cloud server.
- Subjects
COGNITIVE radio; CLOUD computing; TELECOMMUNICATION channels; CLIENT/SERVER computing; COMPRESSED sensing
- Publication
Journal of Information & Communication Convergence Engineering, 2018, Vol 16, Issue 1, p23
- ISSN
2234-8255
- Publication type
Article
- DOI
10.6109/jicce.2018.16.1.23