primary user (PUs)
Performance Analysis of Primary User Aware Heuristic Dynamic Spectrum Channel Allocation
... Since primary user s have the correct of claiming the spectrum whenever required, it's crucial to make sure that primary users' satisfaction and QoS don't seem to be wedged by SUs' activity on the ...
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PSD based primary user detection in Cognitive Radio systems operating in impulsive noise environment
... At transmitter end, modulated input signals with different carrier frequencies are generated. These signals simulate five different channels representing five number of primary users (PUs). All signals are then ...
6
Power Allocation in Primary User Assisted Multi Channel Cognitive Radio Networks
... the primary user using spectrum sharing, where the SU coexists with the PU and transmits with power constraints to guarantee the quality of service (QoS) of the ...
7
A survey on security attacks and countermeasures with primary user detection in cognitive radio networks
... or primary users (PUs), the most fundamental and challenging requirement for the successful operation of CR ...of primary users, with a particular focus on spectrum sensing data falsification and ...
14
Primary User Avoidance algorithm for CRAHNs using Reinforcement Learning
... In this paper a reinforcement based learning approach is proposed & implemented, especially when PUs are active. First, a discussion about Cognitive radio ad hoc networks is presented, then reinforcement learning ...
7
Spectrum Sensing and Primary User Localization in Cognitive Radio Networks via Sparsity
... The theory of compressive sensing (CS) has been employed to detect available spectrum resource in cognitive radio (CR) networks recently. Capitalizing on the spectrum resource underutilization and spatial sparsity of ...
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Detection of Primary User in Cognitive Radio Using Bayesian Approach
... to primary users (PUs) as long as the primary users are not using it ...the primary users, the SUs have to perform spectrum sensing before their attempts to transmit over the ...modulated ...
5
Maximum Utility Function Approach for Detection of Primary User Emulation Attack in Cognitive Radio Networks
... Cognitive Radio (CR) has been widely adopted as a promising technology to overcome the spectrum scarcity by authorizing CR users to operate opportunistically in the free space of the licensed frequency bands in ...
5
Robust Cooperative Spectrum Sensing under Primary User Emulation Attack in Cognitive Radio Networks
... Cognitive Radio (CR) has been widely adopted as a promising technology to overcome the spectrum scarcity by authorizing CR users to operate oppor- tunistically in the free space of the licensed frequency bands in ...
9
Position Verification and Identification of Primary User Emulation (PUE) Attack in Cognitive Radio Network
... of user primary user (PU), those who are licensed user and secondary user (SU), those who are unlicensed ...user. Primary user has the first priority to access the ...
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Primary User Signal Detection Based on Virtual Multiple Antennas for Cognitive Radio Networks
... Abstract—Primary User (PU) signal detection is critical for cognitive radio networks as it allows a secondary user to find spectrum holes for opportunistic ...on primary user signal or ...
15
Partial relay based cooperative primary user detection in cognitive radio networks
... In order to identify spectrum holes, secondary users (SUs) should detect whether the spectrum band is occupied by primary user (PU). Cooperative PU detection is the most prevalent PU detection method in ...
7
Optimal resource allocation for cognitive radio networks with primary user outage constraint
... secondary user (SU) is allowed to share the spectrum with a primary user (PU) as long as the quality-of-service (QoS) requirement of the primary transmission is guaranteed ...
13
Secure Collaborative Spectrum Sensing in the Presence of Primary User Emulation Attack in Cognitive Radio Networks
... Cognitive Radio (CR), which enables secondary user’s access to licensed frequency bands, is a promising technology to boost spectrum resource utilization efficiency in upcoming communication networks [1]. A CR ...
8
Primary user signal detection over fading channel in the presence of weakly correlated noise
... Cyclostationary detection [2] performs better in low SNR region but with increased complexity compared to energy detection. A signal is said to be cyclostationary (wide sense) if its autocorrelation is a periodic ...
8
Capacity maximization threshold design for wideband sensing with guaranteed minimum primary user rate
... Cognitive radio (CR) [1] is promising to leverage the spectrum holes which hide in the grossly underutilized licensed band due to the inflexible spectrum manage- ment [2,3]. To achieve this, the secondary user ...
7
Primary User Localization Schemes in Cooperative Sensing
... In cognitive radio networks secondary users access licensed fre- quency bands if they are free to use. Since it is inevitable that trans- missions of the licensed users must not be interfered with different sensing and ...
5
Cooperative Detection for Primary User in Cognitive Radio Networks
... of primary users as quickly as possible. Suppose that the primary user starts using the spectrum ...with primary user. However, when the wireless link between the primary ...
12
Study of Primary User Emulation Attack in Cognitive Radio Systems
... on primary user emulation attack (PUEA) as of the main specific attacks on ...for primary user emulsion attacks are studied from different point of ...
8
Balancing outage performance of primary user and secondary user by relay assisted primary transmission
... the primary system comprises a transmitter (PT), a receiver (PR), and a decode-and-forward relay (Relay), while the secondary system comprises a transmitter (ST) and a receiver ...the primary users ...
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