Paper published in a journal (Scientific congresses, symposiums and conference proceedings) Power control in cognitive radio networks using cooperative modulation and coding classification
TSAKMALIS, Anestis ; CHATZINOTAS, Symeon ; OTTERSTEN, Björn
2015 • In Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST, 156 , p. 358-369
Peer reviewed
Keywords :
Adaptive coding and modulation; Centralized power control; Cognitive Radio; Cooperative Modulation and Coding Classification; Spectrum sensing; Adaptive control systems; Channel coding; Classification (of information); Codes (symbols); Electric circuit breakers; Frequency bands; Mobile telecommunication systems; Modulation; Power control; Radio systems; Signal interference; Wireless networks; Cognitive base stations; Cognitive radio network; Interference channels; Modulation and coding; Modulation and coding schemes
Abstract :
[en] In this paper, a centralized Power Control (PC) scheme aided by interference channel gain learning is proposed to allow a Cognitive Radio (CR) network to access the frequency band of a Primary User (PU) operating based on an Adaptive Coding and Modulation (ACM) protocol. The main idea is the CR network to constantly probe the band of the PU with intelligently designed aggregated interference and sense whether the Modulation and Coding scheme (MCS) of the PU changes in order to learn the interference channels. The coordinated probing is engineered by the Cognitive Base Station (CBS), which assigns appropriate CR power levels in a binary search way. Subsequently, each CR applies a Modulation and Coding Classification (MCC) technique and sends the sensing information through a control channel to the CBS, where all the MCC information is combined using a fusion rule to acquire an MCS estimate of higher accuracy and monitor the probing impact to the PU MCS. After learning the normalized interference channel gains towards the PU, the CBS selects the CR power levels to maximize total CR network throughput while preserving the PU MCS and thus its QoS. The effectiveness of the proposed technique is demonstrated through numerical simulations. © Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2015.
Journal title :
Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
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