[PDF] Top 20 Energy Efficient Spectrum Sensing and Sensor Scheduling Scheme for MIMO-OFDM Based Cognitive Radio Network

... an efficient spectrum sharing technology, Cognitive Radio (CR) is proposed to increase the usage of the available ...techniques, MIMO-OFDM based Cognitive ... See full document

... proposed spectrum sensing scenario in this paper includes a TV transmitter as primary/licensed radio network and the secondary radio network consists of a large number of ... See full document

... more energy than normal reporting since it is adjusted to cover a wider ...high energy expenditure, while the others will save energy due to not even reporting the local ...proposed scheme of- ... See full document

... of radio spectrum which is limited as a result one of the major issues faced in wireless communication technology is spectrum ...scarcity. Cognitive radio (CR) solves the problem of ... See full document

... In cognitive radio networks, wideband spectrum sensing (WSS) has been advocated as an effective approach to increase the spectrum access opportunity of the secondary ...and ... See full document

... that sensor node is on sleeping mode (is not selected for sensing) and "1" indicates that sensor is on sensing ...the network, then due to multi sensor diversity and less ... See full document

... CSS scheme is proposed in [10,15], which is a trade-off between hard combina- tion and soft combination ...(TTD-CSS) scheme is proposed, in which the second local decision bit is sent to the fusion center ... See full document

... of Energy Efficient Sensor Network Using Ad-Hoc Cognitive Radios in this title we discuss An Energy Efficient network is proposed that consists of Ad-Hoc (mobile) ... See full document

... Wireless sensor networks (WSNs) are one of the communication systems that have been recently adopted by technological advancements of the modern ...the spectrum scarcity problem due to some limitations of ... See full document

... of MIMO-OFDM system using Matched Filter Detection Spectrum Sensing Cognitive Radio Network is ...a spectrum-sensing method that detects the free portions of ... See full document

... the MIMO-OFDM structure as a physical layer in order to increase the capacity of CR ...in MIMO-OFDM systems are not effective enough in CR networks due to mutual interference be- tween the ... See full document

... the OFDM base CRNs and addressed the joint improvement in energy efficiency and spectrum ...the energy efficiency and spectrum efficiency at the same time, authors devised a ... See full document

... certain network parameters. Optimal opportunistic spectrum access (OSA) [8] is discussed ...like energy as well as ...more efficient, but suboptimal, two-step look-ahead strategy for each ... See full document

... increasing. Spectrum resources are becoming increasingly limited with the emergence of various wireless devices and applications ...radio spectrum. Due to increase in the wireless device count, the ... See full document

... underutilized spectrum in the wireless communication is cognitive radio ...unused spectrum in the licensed users (i.e. Primary users). Spectrum sensing plays a vital role in ... See full document

... collision in contention due to differences in transmission range. Obviously, this method can cause a long reporting time with a high rate of contention collision. The sec- ond approach is to assume that the contention ... See full document

... in spectrum sensing can be classified into two categories: (1) Con- vex relaxing-based methods, such as basis pursuit (BP) [15,16] and Dantzig Selector [17]; (2) Greedy algorithm- based ... See full document

... Two block outlier detection methods based on Tietjen-Moore (TM) and Shapiro-Wilk (SW) tests were proposed in Srinu and Mishra (2016) to mitigate the effects of the MUs in CSS. The box plot and median absolute ... See full document

... on spectrum utilization by exploiting the spectrum holes or on the coexistence be- tween secondary and primary users which in turns classifies the cognitive radio networks into three broad ... See full document

... Initially we go for a check to evaluate the occupancy of the channel to show whether the user’s data is present in its frequency band or it is empty; known as spectrum hole [8]. On the arrival of user data, it is ... See full document