[PDF] Top 20 Optimization of Cooperative Spectrum Sensing Using PSO Algorithm for Wireless Communication

... entire sensing result to the fusion centre without performing any local decision and the decision is made by combining these results at the fusion centre by using appropriate combining rules such as EGC, ... See full document

... in wireless technology, spectrum as the major resource for wireless communication systems has now become much a scarcer ...Static spectrum allocation of licensed band by Government has ... See full document

... which communication channels are in ...users. Spectrum recognition is a significant purpose of cognitive radio to stop the destructive interfering with certified users and recognize the vacant ... See full document

... of spectrum in wireless ...licensed spectrum without causing interference to the primary user (PU) or licensed ...user. Spectrum sensing is the first step of the working of a cognitive ... See full document

... proposed spectrum signal detection algorithm will approach a fixed value and obtain preliminary signal detection ...the wireless spectrum may vary with the change of spatial position ... See full document

... The wireless access in Vehicular Environment (WAVE) protocol stacks to enable vehicular communication on the Dedicated Short Range Communication (DSRC) frequencies in RSU (Road Side ...sufficient ... See full document

... Spectrum sensing is one of the main research issues under wireless communication for dynamic spectrum sharing ...many spectrum sensing algorithm proposed in ... See full document

... radio spectrum is a licensed ...reliable wireless communication. Now a day the wireless service providers buy the license for one or more spectrum ...of wireless spectrum ... See full document

... either cooperative sensing or data transmission to maximize the spectrum efficiency of the ...transmitting spectrum access is proposed, which can maximize the spectrum efficiency ... See full document

... the spectrum opportunity, which is restricted by the current rigid spectrum allocation scheme, to solve the spectrum scarcity problem ...Different spectrum sensing techniques are ... See full document

... dynamic spectrum sharing in time-variant flat fading (TVFF) ...idle spectrum by secondary user routers ...idle spectrum, and then assign to the ...the wireless communication quality ... See full document

... Here, the sensor nodes are divided into small groups, which are called clusters. Each cluster will be having a cluster head (CH), which will monitor the remaining nodes. Nodes in a cluster do not communicate with the ... See full document

... to spectrum scarcity and the demand of ...for wireless communication systems, this has given rise to search for desirable spectrum bands for ...by sensing the idle (licensed) bands and ... See full document

... Another algorithm was proposed by Savarese [20] to improve Niculescu’s method which consists of two phases-hop terrain and ...convex optimization which is based on semi-definite programming ... See full document

... of PSO, BPSO and QGA enter dead status at 5500 hours, however, the proposed QPSO algorithm can prolong the network lifetime of the assumed scenario by another 500 hours (about ... See full document

... This article describes briefly the mathematical modeling of light scattering from a cell, i.e., the solution of the direct problem, and the cell shape model. Afterwards, the description of the PSO and the ... See full document

... the spectrum and extract the required information about the available frequency bands which is attained by considering two approaches: spectrum sensing and ...to spectrum sensing, the ... See full document

... the spectrum scarcity problem with providing the capability of sharing the wireless channel between unlicensed users (secondary users (SU)) and licensed users (primary users (PU)) in an opportunis- tic ... See full document

... indoor wireless communication and the widespread use of cognitive radio in spectrum sharing in recent years, this paper combines Femtocell with cognitive radio to form a cognitive home base station, ... See full document

... centralized wireless network with K secondary cognitive radio users were ...complexity. Spectrum sensor is implemented using energy detection, where all decisions thresholds are matched to each ... See full document