[PDF] Top 20 Solving resource allocation problems in cognitive radio networks: a survey

... optimisation problems in CRN is through reformula- ...RA problems in CRN, examples are in references [22, 45, 56, ...optimise radio resource usage in heterogeneous cognitive wireless ... See full document

... Cognitive Radio Network (CRN) is a promising worldwide ...or resource allocation and also lack of spectrum. Efficient resource allocation methodology becomes a new research ... See full document

... Cognitive radio (CR) is a promising solution to improve the spectrum utilization by enabling unlicensed users to exploit the spectrum in an opportunistic ...in cognitive radio networks ... See full document

... filter detection stepped forward SNR, but required the prior statistics of PU for higher detection. strength detection had the advantage that no prior information about PU turned into required, however did no longer ... See full document

... channel allocation [10] and for power allocation [11].A survey of spectrum sensing methodologies for cognitive radio in [12] covers various aspects of spectrum sensing problems ... See full document

... in cognitive radio networks, where the secondary users are allowed to access the spectrum of the primary users as long as they preserve the secure communication of PU in the presence of malicious ... See full document

... and resource allocation strategies in order to minimize the average end-to-end delay of multiple data connections in the cognitive radio based wireless mesh ...the cognitive mesh nodes ... See full document

... Routing in WSN or CRSN are the challenging job because of limited level of hardware and other resource available. The designing the routing protocols with some consideration such as minimum routing overhead, ... See full document

... We separately address the Primary’s Spectrum Contract Trading (Primary-SCT) problem and the Secondary’s Spectrum Contract Trading (Secondary-SCT) problem. We formulate each problem as a finite horizon stochastic dynamic ... See full document

... on radio resource allo- cation with quality of service (QoS) optimization target ...power allocation scheme for transmitting scalable video coding based videos is proposed with the target to maximize ... See full document

... In contrast to the flourish on capacity enhancing, little attention has been paid to energy efficiency of the CR systems. Nowadays, excessive energy consumption becomes a critical issue because of the consequent ... See full document

... power allocation method is then formulated in which the objective is to maximize the total SBS utility, in terms of the SE, subject to total available transmit power at the SBS and primary system collision ... See full document

... (GA)-embedded cognitive engine. Newman et al. [23] proposed a GA-based cognitive radio suitable for Emergency (minimize BER) and Low Power (minimize power consumption, like MA in a traditional ... See full document

... Unlike the above work, in [10], the spectrum sensing problem in the temporal domain is modeled by a discrete-time Markov chain with general-alphabet observable process. Several sequence detection algorithms derived from ... See full document

... CR networks and aim to perform subcarrier, bit, and power allocation for different cognitive users such that the sum rate of the cognitive users is increased, thus resulting in improved video ... See full document

... A resource allocation method has been proposed for IEEE ...optimize resource allocation as it seeks to ensure that specific users that request channel are allocated one with an associated ... See full document

... several resource management mechanisms commonly considered in the literature (spectrum aggregation, spectrum adaptation, call buffering, channel reservation, selective interruption, and preemptive prioritization) ... See full document

... OFDM-based cognitive radio overlaid with narrowband primary users, we consider a scheme called the variable sub band nulling (VSN), in which a VSN mode is selected adaptively according to the result of ... See full document

... Dynamic Spectrum Access (DSA) of cognitive radio sensor nodes in harsh smart grid propagation.. 97.[r] ... See full document

... for cognitive tech- niques. For nearly a century, allocation of spectrum throughout the world has been based on a model of static ...entire radio spectrum from 6 kHz to 300 GHz is allocated [2], at ... See full document