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Journal articles on the topic 'Carrier to Interference Ratio (CIR)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Gupta, Shilpi, Upena Dalal, and Vishnu Narayan Mishra. "Performance on ICI Self-Cancellation in FFT-OFDM and DCT-OFDM System." Journal of Function Spaces 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/854753.

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In orthogonal frequency division multiplexing (OFDM) system, the existence of frequency offset in AWGN channel affects the orthogonality among the subcarriers and consequently introduces the intercarrier interference (ICI). The paper investigates new ICI self-cancellation technique to mitigate the effect of ICI in FFT-OFDM and compares it to DCT based OFDM system in terms of bit error rate (BER) and carrier to interference ratio (CIR). The proposed method for group size three results in a significant 20 dB improved CIR in FFT-OFDM. In terms of BER, proposed ICI self-cancellation technique outp

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2

Almisbah, Nasir Salh, and Elessaid S. Saad. "Analysis of Intercarrier Interference Cancellation Scheme in OFDM Systems." Computer Engineering and Applications Journal 1, no. 1 (2012): 13–23. http://dx.doi.org/10.18495/comengapp.v1i1.2.

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Abstract: Orthogonal Frequency Division Multiplexing (OFDM) is an emerging multi-carrier modulation scheme, which has been adopted for several wireless standards such as IEEE 802.11a and HiperLAN2. In OFDM systems, the performance is very sensitive to subcarrier frequency errors (offset). This paper shows the analysis and derivations of intercarrier interference (ICI) complex gain that used in self-cancellation scheme and its dependence on subcarrier frequency offset. Simulation shows that better improvement in performance is achieved for systems that use this cancellation scheme. Moreover, an

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3

Youssef, M. I., A. E. Emam, and M. Abd Khalifa. "ICI and PAPR enhancement in MIMO-OFDM system using RNS coding." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 2 (2019): 1209. http://dx.doi.org/10.11591/ijece.v9i2.pp1209-1219.

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<p><span>The Inter-Carrier-Interference (ICI) is considered a bottleneck in the utilization of Multiple-Input-Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems, due to the sensitivity of the OFDM towards frequency offsets which lead to loss of orthogonality, interference and performance degradation. In this paper Residue Numbers as a coding scheme is impeded in MIMO-OFDM systems, where the ICI levels is measured and evaluated with respect to conventional ICI mitigation techniques implemented in MIMO-OFDM. The Carrier-to-Interference Ratio (CIR), the sys

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4

Sharief, A. H., and M. Satya Sai Ram. "An Improved ICI Self Cancellation Scheme for OFDM Systems Under Various Channels." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 2 (2016): 690. http://dx.doi.org/10.11591/ijece.v6i2.9062.

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Inter Carrier Interference (ICI) is being introduced in OFDM due to the carrier frequency offset (CFO), which will degrade the system performance and efficiency at higher modulation levels and it decreases the performance of power amplifiers. Hence, here in this paper, we introduced a novel ICI reduction algorithms cancellation under the various channel environments such as AWGN, Rayleigh and also Rician. Simulation results have been compared with existing and proposed schemes under these channel specifications and concluded that the Rayleigh has performed far better than the AWGN and Rician c

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Sharief, A. H., and M. Satya Sai Ram. "An Improved ICI Self Cancellation Scheme for OFDM Systems Under Various Channels." International Journal of Electrical and Computer Engineering (IJECE) 6, no. 2 (2016): 690. http://dx.doi.org/10.11591/ijece.v6i2.pp690-699.

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Inter Carrier Interference (ICI) is being introduced in OFDM due to the carrier frequency offset (CFO), which will degrade the system performance and efficiency at higher modulation levels and it decreases the performance of power amplifiers. Hence, here in this paper, we introduced a novel ICI reduction algorithms cancellation under the various channel environments such as AWGN, Rayleigh and also Rician. Simulation results have been compared with existing and proposed schemes under these channel specifications and concluded that the Rayleigh has performed far better than the AWGN and Rician c

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6

Ur Rehman, Naveed, Lei Zhang, Muhammad Zahid Hammad, and Emmanuel Anania Mwangosi. "ICI Cancellation in OFDM Systems by Frequency Offset Reduction." Applied Mechanics and Materials 513-517 (February 2014): 3987–91. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.3987.

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The rapid growth within the field of digital communication during the recent years expanded the need for high-speed data transmission to support a wide range of services such as: video, data and voice in wireless communication systems, etc. Orthogonal frequency division multiplexing (OFDM) and a multicarrier modulation scheme are employed to achieve the high data rates. Since OFDM is very much sensitive to carrier frequency offsets, which cause the Inter-carrier Interference (ICI) leads to mitigation of this ICI is necessary. The objectives of this paper are to, proposed an efficient ICI self-

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7

Dimc, Franc, Polona Pavlovčič-Prešeren, and Matej Bažec. "Robustness against Chirp Signal Interference of On-Board Vehicle Geodetic and Low-Cost GNSS Receivers." Sensors 21, no. 16 (2021): 5257. http://dx.doi.org/10.3390/s21165257.

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Robust autonomous driving, as long as it relies on satellite-based positioning, requires carrier-phase-based algorithms, among other types of data sources, to obtain precise and true positions, which is also primarily true for the use of GNSS geodetic receivers, but also increasingly true for mass-market devices. The experiment was conducted under line-of-sight conditions on a straight road during a period of no traffic. The receivers were positioned on the roof of a car travelling at low speed in the presence of a static jammer, while kinematic relative positioning was performed with the stat

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8

Lee, Yongho, Shinil Chang, Jungah Kim, and Hyunchol Shin. "A CMOS RF Receiver with Improved Resilience to OFDM-Induced Second-Order Intermodulation Distortion for MedRadio Biomedical Devices and Sensors." Sensors 21, no. 16 (2021): 5303. http://dx.doi.org/10.3390/s21165303.

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A MedRadio RF receiver integrated circuit for implanted and wearable biomedical devices must be resilient to the out-of-band (OOB) orthogonal frequency division modulation (OFDM) blocker. As the OFDM is widely adopted for various broadcasting and communication systems in the ultra-high frequency (UHF) band, the selectivity performance of the MedRadio RF receiver can severely deteriorate by the second-order intermodulation (IM2) distortion induced by the OOB OFDM blocker. An analytical investigation shows how the OFDM-induced IM2 distortion power can be translated to an equivalent two-tone-indu

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9

Su, Yu T., and Ju-Ya Chen. "Carrier-to-interference ratio measurement using moments or histograms." IEEE Transactions on Communications 48, no. 8 (2000): 1338–46. http://dx.doi.org/10.1109/26.864171.

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10

Pons, J. A., and J. Dunlop. "Modelling carrier to interference ratio in cellular mobile radio environments." Electronics Letters 34, no. 1 (1998): 27. http://dx.doi.org/10.1049/el:19980025.

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11

Lim, Christina, Ka-Lun Lee, Ampalavanapillai Nirmalathas, Dalma Novak, and Rod Waterhouse. "Technique to improve carrier-to-interference ratio of optical single sideband with carrier modulated signals." Optics Express 14, no. 23 (2006): 11077. http://dx.doi.org/10.1364/oe.14.011077.

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12

Yuh-Ren Tsai. "Spatial correlation models for total co-channel interference and carrier-to-interference ratio in mobile cellular systems." IEEE Transactions on Wireless Communications 5, no. 10 (2006): 2752–59. http://dx.doi.org/10.1109/twc.2006.04707.

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13

Wu, Zhuang, Xiao Xin Ma, and Lan Zhang. "Anti-Jamming Ability Research on COFDM Modulation of UAV Image Transmission." Advanced Materials Research 1079-1080 (December 2014): 614–17. http://dx.doi.org/10.4028/www.scientific.net/amr.1079-1080.614.

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Thefrequency offset and phase noise will make the orthogonal property between eachsub carrier deterioration. Only1% frequency offset will cause 30dB signal-to-noise ratio decrease. In order to researchanti-jamming ability on COFDM modulation, we use the PXW-100S type codedmodulation module and the PXW-500S type DVB-T receiving board for unmannedaerial vehicle(UAV) platform, through the elimination of inter symbol interference(ISI) and inter carrier interference(ICI).

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14

Bek, Mohammad, sherif Elgamel, Ehab Shaheen, and Khairy El-Barbary. "Interference Effect on the Post-Correlation Carrier to Noise Ratio for GPS Receiver." International Conference on Electrical Engineering 9, no. 9th (2014): 1–15. http://dx.doi.org/10.21608/iceeng.2014.30373.

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15

Madhusudhanan, Prasanna, Juan G. Restrepo, Youjian Eugene Liu, Timothy X. Brown, and Kenneth R. Baker. "Stochastic Ordering Based Carrier-to-Interference Ratio Analysis for the Shotgun Cellular Systems." IEEE Wireless Communications Letters 1, no. 6 (2012): 565–68. http://dx.doi.org/10.1109/wcl.2012.080112.120458.

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16

Sim, Taehoon, Gayoung Park, Hyeyoung Min, et al. "Development of a gene carrier using a triblock co-polyelectrolyte with poly(ethylene imine)-poly(lactic acid)-poly(ethylene glycol)." Journal of Bioactive and Compatible Polymers 32, no. 3 (2016): 280–92. http://dx.doi.org/10.1177/0883911516671154.

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The success of gene therapy mainly depends on the carriers for effective gene delivery. A non-viral vector using a cationic block co-polyelectrolyte, PEI-PLA-PEG polyethyleneimine-poly(lactic acid)-poly(ethylene glycol)) was developed as a potential gene carrier. The cationic PEI-PLA-PEG showed less toxicity compared to PEI and formed a gene nanocomplex (termed polyplex) by interaction with plasmid DNA or small interference RNA. The polyplex showed smaller particle size and greater positive zeta potential by increasing the high polymer nitrogen/DNA phosphate ratio. The polyplex with a nitrogen

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17

Kumar, Suyash, and P. V. Suresh. "Analyzing Carrier to Noise Interference Ratio on Performance Enhancement for Dynamic Channel Allocation Scheme." International Journal of Applied Engineering Research 13, no. 5 (2018): 2955. http://dx.doi.org/10.37622/ijaer/13.5.2018.2955-2958.

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18

Sarddar, Debabrata, Shubhajeet Chatterjee, Pulak Mazumder, et al. "Improved Handoff Efficiency with the help of Neighbour Graph using Carrier to Interference Ratio." International Journal of Computer Applications 27, no. 1 (2011): 34–40. http://dx.doi.org/10.5120/3265-4411.

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19

Li, J., J. Nie, B. Li, and F. Wang. "Increase of Carrier-to-Noise Ratio in GPS Receivers Caused by Continuous-Wave Interference." Radioengineering 25, no. 3 (2016): 506–17. http://dx.doi.org/10.13164/re.2016.0506.

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20

Khodadoust, Ali Mohammad, and Ghosheh Abed Hodtani. "Carrier to interference ratio analysis in shotgun cellular systems over a generalized shadowing distribution." Wireless Networks 25, no. 8 (2018): 4447–57. http://dx.doi.org/10.1007/s11276-018-1742-z.

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21

Fang, Wei Wei, Gang Yang, Fei Wang, Wei Jiao, Wei Wang, and Wei Chu Xiong. "Research on Evaluation Model of Digital-Analog Interference for IBOC." Applied Mechanics and Materials 411-414 (September 2013): 823–27. http://dx.doi.org/10.4028/www.scientific.net/amm.411-414.823.

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HD Radio standard can realize the smooth transition from analog to digital using "in-band on-channel (IBOC)" technology, which is the most advantageous choice for analog broadcasting digitized. In HD Radio Hybrid and Extended waveform type, the digital signal employs the same carrier with the analog signal, and is transmitted on both sides of the analog FM signal. Since the digital carrier adjacent analog signal, the core to implement IBOC is the interference problem of digital signal to analog signal at the beginning of broadcasting digitized. For the interference evaluation model, this paper

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22

Deng, Juinn-Horng, and Sheng-Yang Huang. "Partial PIC-MRC Receiver Design for Single Carrier Block Transmission System over Multipath Fading Channels." International Journal of Antennas and Propagation 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/910824.

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Single carrier block transmission (SCBT) system has become one of the most popular modulation systems due to its low peak-to-average power ratio (PAPR), and it is gradually considered to be used for uplink wireless communication systems. In this paper, a low complexity partial parallel interference cancellation (PIC) with maximum ratio combining (MRC) technology is proposed to use for receiver to combat the intersymbol interference (ISI) problem over multipath fading channel. With the aid of MRC scheme, the proposed partial PIC technique can effectively perform the interference cancellation an

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23

Wang, Yue, Liang Chen, Li Zhang, Haifeng Li, Huaihu Cao, and Jianming Zhu. "On Carrier Sensing Accuracy and Range Scaling Laws in Nakagami Fading Channels." Wireless Communications and Mobile Computing 2017 (2017): 1–16. http://dx.doi.org/10.1155/2017/7189090.

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We make a detailed study on carrier sensing of 802.11 in Nakagami fading channels. We prove that to maximize sensing accuracy, the optimal channel accessing probability is solely determined by the path-loss SIR (Signal to Interference Ratio). We define pfail-interference range and pbusy-carrier sensing range for fading channels and prove that their scaling laws in Nakagami fading channels are similar to those in the static channel. The newly derived theoretical results show a unified property between the static and fading channels. By extensive simulations, we reveal that fading depresses the

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24

Dang, Guo Qing, and Xiao Yan Cheng. "Design and Implementation of Key Technologies of Carrier Synchronization in Wireless Communication System." Applied Mechanics and Materials 602-605 (August 2014): 3329–32. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.3329.

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Noise multiple and user interference are the two important influencing factors that carrier synchronization technology in the wireless communication system faces. On the one hand, the phase locked loop and data aided carrier synchronization device is faced with poor estimation precision and slow convergence speed. On the other hand frequency offset and channel estimation problem need to be solved in multi-input multi-output (MIMO) communication system collaboration under the condition of dry low signal to noise ratio. So research of carrier synchronization algorithm of low complexity, high pre

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25

Zhang, Zhiliang, Ying Liu, Fang Luo, and Xiaohong Wang. "On Cancellation Capability of Full-Duplex RF Self-Interference Cancellation Schemes." Mobile Information Systems 2019 (March 3, 2019): 1–7. http://dx.doi.org/10.1155/2019/5627178.

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In this work, we study the self-interference cancellation (SIC) capability of two basic radio frequency (RF) SIC schemes: auxiliary antenna cancellation and multireconstruction-path (MRP) cancellation (including particular two-reconstruction-path balun cancellation), and derive their cancellation capability in detail. Theoretical results show that auxiliary antenna cancellation capability and balun cancellation capability are related to the ratio of bandwidth to carrier frequency, the latter is further related to an angle ratio; that is, the ratio of the angle between the self-interference vec

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26

Aldhaibani, A. O., S. A. Aljunid, Mohd Shamsul Anuar, A. R. Arief, and H. Y. Ahmed. "Simulative Effect of Cyclic Prefix in Optical OFDM." Applied Mechanics and Materials 661 (October 2014): 190–94. http://dx.doi.org/10.4028/www.scientific.net/amm.661.190.

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Orthogonal frequency division multiplexing (OFDM) is one of the Multi-Carrier Modulation (MCM) techniques that transmit signals through multiple carriers. These carriers (subcarriers) have different frequencies and they are orthogonal to each other. There are different parameters which alter the performance of OFDM system. In this paper, the effect of cyclic prefix length (CP) on optical (OFDM) system is investigated. Although employing a CP as the guard interval is a simple way to combat inter-symbol interference (ISI) and inter-carrier interference (ICI), it reduces the transmission efficien

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27

Kim, Se-Jin, Won-Joo Moon, and Won-Jin Sung. "Receiver Carrier-to-Interference Ratio Distribution Characteristics under the Influence of an Intra-Cell Interferer." Journal of Korean Institute of Electromagnetic Engineering and Science 18, no. 9 (2007): 1057–63. http://dx.doi.org/10.5515/kjkiees.2007.18.9.1057.

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28

Kanellopoulos, J. D., and S. N. Livieratos. "Analysis of the Total Carrier-To-Noise Plus Interference Ratio Statistics Applied To Adjacent Satellite Interference Under the Presence of Rain." Journal of Electromagnetic Waves and Applications 12, no. 4 (1998): 527–55. http://dx.doi.org/10.1163/156939398x00935.

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29

Assaf, Mohammad Razk, and Abdel-Nasser Assimi. "Iterative Interference Cancellation for Coded Filter Bank Multicarrier Systems." International Journal of Embedded and Real-Time Communication Systems 10, no. 4 (2019): 81–93. http://dx.doi.org/10.4018/ijertcs.2019100105.

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Filter bank multicarrier is one of the candidates for future communication systems. Simple equalization methods cannot be directly applied due to the high interference from adjacent channels. In this article, the authors derive a soft-input/soft-output (SISO) equalizer based on the minimum mean square error (MMSE) criterion for the bit-interleaved coded system using a filter bank multi-carrier scheme with offset quadrature amplitude modulation (FBMC/OQAM). The authors use this SISO-MMSE equalizer in a turbo-equalization scheme for each sub-carrier. The difficulty in this implementation comes f

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30

Bagheri, Asma, and Ghosheh Abed Hodtani. "Carrier to interference ratio, rate and coverage analysis in shotgun cellular systems over composite fading channels." Physical Communication 24 (September 2017): 161–68. http://dx.doi.org/10.1016/j.phycom.2017.07.005.

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31

Sarddar, Debabrata, Shubhajeet Chatterjee, Arnab Raha, et al. "Fast Handoff Implementation by using Geometrical Mathematical Models and Carrier to Interference Ratio based Handoff Algorithm." International Journal of Computer Applications 27, no. 6 (2011): 1–9. http://dx.doi.org/10.5120/3308-4534.

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32

Hussein, Ahmed F., and Hany Elgala. "Design and spectral analysis of mixed-carrier communication for sixth-generation networks." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 476, no. 2238 (2020): 20200165. http://dx.doi.org/10.1098/rspa.2020.0165.

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The fifth-generation (5G) wireless cellular network is expected to be ready for commercialization within this year. The huge spectrum enabled by the millimetre-wave (mm-Wave) technology is expected to introduce a hype in data usage per user. The 5G is also expected to concurrently support a wide variety of services; however, the practical trade-offs associated with concurrent services require further investigations. In this work, a physical layer (PHY) design to support visible light communications is considered to efficiently support concurrent services that are essential to serve the needs o

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33

Kumar, Abhishek. "ON VARIOUS TECHNIQUES IN OFDM AND GFDM: A SURVEY." International Journal of Students' Research in Technology & Management 5, no. 4 (2017): 39–45. http://dx.doi.org/10.18510/ijsrtm.2017.545.

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Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier modulation that divides the available spectrum into a finite number of carriers and applied into a digital transmission system. But it has some drawbacks such as sensitivity in inter-carrier interference, high peak to average power ratio and insufficient cyclic prefix in spectrum. These drawbacks may be reduced by a technique known as Generalized Frequency Division Multiplexing (GFDM). In the present scenario, it is a high speed multi-carrier multiplexing data transfer scheme for the cellular network. This paper deals with a

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34

Cho, Yong-Sang, Yun-Seong Kang, and Moonsik Min. "Uplink Transmit Power Control for Single-Carrier Grouped FDMA with Iterative Multiuser Detection." Applied Sciences 10, no. 1 (2019): 119. http://dx.doi.org/10.3390/app10010119.

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We consider an uplink power allocation scheme for single-carrier frequency-division multiple access (FDMA) with iterative multiuser detection, called single-carrier grouped FDMA (SC-GFDMA). SC-GFDMA is a non-orthogonal scheme in which several users share a single time-frequency resource. Hence, the uplink signal of a user can be regarded as both a signal and a source of interference. The signal power of each user should be sufficiently high to ensure reliable signal detection and sufficiently low to suppress inter-user interference. That is, the transmit power of each user should be adjusted a

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35

Barzegar, Hamid R., and Luca Reggiani. "Channel Coding for Multi-Carrier Wireless Partial Duplex." Wireless Communications and Mobile Computing 2019 (January 15, 2019): 1–13. http://dx.doi.org/10.1155/2019/9891821.

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In order to leverage the spectrum resources, several forms of wireless duplex have been introduced and investigated in recent years. In Partial Duplex (PD) schemes, part of the band is transmitted in Full-Duplex (FD) and the rest in Half-Duplex (HD); therefore, some transmitted symbols will be characterized, at the receiver, by high SNR (Signal-to-Noise Ratio) and others by low SNR because of the residual self-interference (SI) in the FD part. Combining properly the patterns of these high and low SNR symbols affects the performance of the encoding schemes used in the system; in order to overco

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36

Sadek Ali, Md, M. A. Masud, Md Shariful Islam, and Md Alamgir Hossain. "Performance Enhancement of Dynamic Channel Allocation in Cellular Mobile Networks Based on Carrier-To-Noise Interference Ratio." International Journal of Computer Science, Engineering and Information Technology 1, no. 2 (2011): 16–27. http://dx.doi.org/10.5121/ijcseit.2011.1202.

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PNEVMATIKAKIS, ARISTODEMOS, LAMPROS DERMENTZOGLOU, and AGGELIKI ARAPOYANNI. "ANALOG-TO-DIGITAL INTERFACE FOR HETERODYNE RECEIVERS." Journal of Circuits, Systems and Computers 11, no. 01 (2002): 57–72. http://dx.doi.org/10.1142/s021812660200029x.

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The analysis of the Intermediate Frequency (IF) section of a heterodyne receiver employing IF sampling, based on its Carrier-to-Interference ratio (C/I), yields various options on filtering, amplification, conversion to digital and interfacing to base-band. These options are considered using Bit Error Rate (BER) simulations, leading to an optimized design for the IF section and the interface to base-band of the heterodyne receiver.

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Shamsan, Zaid Ahmed, and Ahmed Al-Saman. "Performance of the DBS Satellite Receiver under the Impact of Rainfall and Terrestrial Interference." Wireless Communications and Mobile Computing 2021 (September 8, 2021): 1–12. http://dx.doi.org/10.1155/2021/5595294.

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This article presents a new study on the feasibility of operating a direct broadcasting satellite (DBS) system under the effect of both precipitation and interference from a fixed service (FS) at K-band in a semiarid region. The carrier-to-noise plus interference ratio (CNIR) as a protection criterion has been adopted to make sure that the receiver of the DBS system operates with an acceptable performance under rainfall and interference from FS. Various measured data for rainfall in different areas have been utilized to investigate different rain rate exceedance percentages. Results have been

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Zhang, Yu Lei, Tian Yuan Zhang, and Shu Xin Guo. "A Novel ZF-Based MAI Cancellation Scheme in the Time Domain for SC-FDMA System." Applied Mechanics and Materials 427-429 (September 2013): 2432–35. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.2432.

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Similar to the orthogonal frequency division multiple access (OFDMA) system, the carrier frequency offset (CFO) is a challenging problem in the single carrier frequency division multiple access (SC-FDMA) system, which can destroy the orthogonality among the subcarriers. As a consequence, multi-access interference (MAI) along with serious performance degradation will be induced. In this paper, a zero forcing (ZF)-based MAI cancellation scheme is proposed. Compared with other cancellation schemes, the proposed one mitigates the interferences in the time domain instead of the frequency domain. Si

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40

Akhmat, M. S., and Yu S. Shinakov. "Estimation of the carrier-to-interference ratio in the reverse link of the IMT-2000 cellular communications system." Journal of Communications Technology and Electronics 55, no. 9 (2010): 1005–16. http://dx.doi.org/10.1134/s1064226910090068.

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Lei, Zhang, Cong Feng Liu, Wei Jiang, Gui Zhou Xu, and Ning Dai. "Performance Analysis of OFDM Channel System." Advanced Materials Research 268-270 (July 2011): 1438–46. http://dx.doi.org/10.4028/www.scientific.net/amr.268-270.1438.

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OFDM is a promising digital communications technique for high data rate transmissions. In this paper, we have analyzed the performance of mobile OFDM systems in the presence of channel estimation error. A new channel estimation error model is presented. Based on the estimation error model, new and simple expressions for the average bit error probability of M-QAM OFDM systems are derived for zero-forcing, minimum mean square error and maximum likelihood receivers. A complex correlation coefficient is used to quantify the quality of the channel estimation scheme. We have shown that if the comple

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42

Mustafa, Samah A. "Reliability of Trigonometric Transform-based Multi-Carrier Scheme." ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY 6, no. 2 (2018): 49. http://dx.doi.org/10.14500/aro.10312.

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This work is looking for a new physical layer of a multi-carrier wireless communication system to be implemented in low complexity way, resorting to suitable fast transform. The work presents and assesses a scheme based on Discrete Trigonometric Transform with appending symmetric redundancy either in each or multiple consecutive transformed blocks. A receiver front-end filter is proposed to enforce whole symmetry in the channel impulse response, and bank of one tap filter per sub-carrier is applied as an equalizer in the transform domain. The behaviour of the transceiver is studied in the cont

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.S, Ramakrishna, and Priyatam Kumar. "Bit Error Rate Performance Analysis for Various Modulation Techniques using SUI Channel in Multi-Carrier System." International Journal of Advanced Research in Computer Science and Software Engineering 7, no. 7 (2017): 419. http://dx.doi.org/10.23956/ijarcsse.v7i7.170.

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Orthogonal Frequency Division Multiplexing (OFDM) is of the strong prospects as a future wireless communication system. Improved spectral efficiency has been found in OFDM based on DFT, has a good orthogonality but inter symbol interference (ISI) and inter carrier interference (ICI) degrade the performance. ISI and ICI can be improved by using cyclic prefix (CP). About 20% of bandwidth is consumed by CP. For preferable performance DWT based OFDM gives better outlook than DFT based OFDM.. Three advantages of using DWT are desirable signal to noise ratio, desirable data rate and below per power

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Banerjee, Joydeep, Pradipta Ghosh, Mrinal Kanti Naskar, and Debabrata Sarddar. "Geometrical Mathematical Models and Carrier to Interference Ratio based Handoff Algorithm for Reduction of Handoff Latency in Wireless Networks." International Journal of Computer Applications 27, no. 3 (2011): 44–55. http://dx.doi.org/10.5120/3432-4468.

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Bek, Mohammad K., Ehab M. Shaheen, and Sherif A. Elgamel. "Mathematical analyses of pulse interference signal on post‐correlation carrier‐to‐noise ratio for the global positioning system receivers." IET Radar, Sonar & Navigation 9, no. 3 (2015): 266–75. http://dx.doi.org/10.1049/iet-rsn.2014.0155.

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Khodadoust, Ali Mohammad, and Javad Khodadoust. "Generalized carrier to interference ratio analysis for shotgun cellular systems in multiple dimensions over composite Rayleigh–Lognormal (Suzuki) fading." Telecommunication Systems 70, no. 2 (2018): 171–83. http://dx.doi.org/10.1007/s11235-018-0478-5.

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Anyaegbu, Esther, Gary Brodin, John Cooper, Enrique Aguado, and Said Boussakta. "An Integrated Pulsed Interference Mitigation for GNSS Receivers." Journal of Navigation 61, no. 2 (2008): 239–55. http://dx.doi.org/10.1017/s0373463307004572.

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The E5/L5 frequency band for the new Global Navigation Satellite System (GNSS) signals is crowded with aeronautical pulsed emitters. This results in severe degradation of the performance of GNSS receivers. This paper describes a novel technique for estimating and suppressing time-varying pulsed interference signals such as the Distance Measuring Equipment (DME)/Tactical Air Navigation (TACAN) signals generated by these pulsed emitters. The proposed technique involves the integration of the time-based pulse blanker and the wavelet-based interference mitigation technique. Aviation is the key app

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Elizarraras, Omar, Marco Panduro, Aldo L. Méndez, and Alberto Reyna. "MAC Protocol for Ad Hoc Networks Using a Genetic Algorithm." Scientific World Journal 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/670190.

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The problem of obtaining the transmission rate in an ad hoc network consists in adjusting the power of each node to ensure the signal to interference ratio (SIR) and the energy required to transmit from one node to another is obtained at the same time. Therefore, an optimal transmission rate for each node in a medium access control (MAC) protocol based on CSMA-CDMA (carrier sense multiple access-code division multiple access) for ad hoc networks can be obtained using evolutionary optimization. This work proposes a genetic algorithm for the transmission rate election considering a perfect power

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Zhang, Lin Xi, Peng Song, and Ying Jun Zhang. "A Novel Method Based on Cyclic Spectral Analysis about Carrier Frequency Estimation in the UAV Data Chain." Advanced Engineering Forum 6-7 (September 2012): 215–20. http://dx.doi.org/10.4028/www.scientific.net/aef.6-7.215.

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When UAV works on the end of the task path, or affected by waves transmission environment and the influence of the electromagnetic interference, the signal of receiver will be made low signal-to-noise ratio (SNR) signal and the phase lock loop (PLL) using for carrier extraction will performance serious decline or loss locks. Therefore, in order to ensure UAV completed a predefined task successfully, low SNR carrier recovery has become one of the key technologies in the UAV data chain. In this paper, based on the basic concept of cyclic spectral analysis, we research and give the cyclic autocor

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Dong, Zhao, Jing Shuo Niu, Ming He Feng, and Xuan Ru Tao. "Based on Block Averaging Pre-Processing Differential Coherent Integration Weak Signal Acquisition Algorithm." Advanced Materials Research 706-708 (June 2013): 663–66. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.663.

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Aiming at the problem of signal attenuation seriously, a block averaging pre-processing (BAP) differential coherent acquisition algorithm is proposed. BAP algorithm can be used to suppress interference signals and improve the stability of the receiver, but it is still faced with navigation signal transitions problem. Differential coherent algorithm can compensate for square loss caused by non-coherent accumulation. Monte Carlo simulation experiments show that the algorithm is more effective in the same carrier-to-noise ratio and same data length conditions.

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