Academic literature on the topic 'ICI Cancellation'
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Journal articles on the topic "ICI Cancellation"
Hatagundi, Mrityunjaya, Ramakrishna Joshi, and Dr Priyatam Kumar. "ICI Cancellation using Self Cancellation Method." IJARCCE 5, no. 12 (December 30, 2016): 453–57. http://dx.doi.org/10.17148/ijarcce.2016.512103.
Full textHabib, S. E. D., Reem I. Sayed, Hisham M. Hamed, and Magdi Fikri. "New ICI Self Cancellation Scheme for OFDM Systems." International Journal of Computer and Communication Engineering 3, no. 1 (2014): 1–5. http://dx.doi.org/10.7763/ijcce.2014.v3.281.
Full textGupta, 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.
Full textUr 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.
Full textXu, Changqing, Xiaobo Zhang, and Wentao Song. "Novel ICI cancellation algorithm in OFDM systems." Journal of Electronics (China) 21, no. 1 (January 2004): 78–82. http://dx.doi.org/10.1007/bf02687801.
Full textWadhwa, Jyoti. "Study of ICI Cancellation techniques in OFDM." IOSR Journal of Electronics and Communication Engineering 2, no. 5 (2012): 43–47. http://dx.doi.org/10.9790/2834-0254347.
Full textMaruta, Kazuki. "Dynamic Clustering and Coordinated User Scheduling for Cooperative Interference Cancellation on Ultra-High Density Distributed Antenna Systems." Entropy 20, no. 8 (August 19, 2018): 616. http://dx.doi.org/10.3390/e20080616.
Full textKongonda, Shyam Sunder, and Srinivasulu Tadishetty. "Mitigation of ICI Through Optimized SSR ICI Self Cancellation Scheme in OFDM." International Journal of Computer Engineering in Research Trends 3, no. 9 (September 1, 2016): 482. http://dx.doi.org/10.22362/ijcert/2016/v3/i9/48867.
Full textCHITRA, S., and N. KUMARATHARAN. "AN EFFICIENT CFO ESTIMATION AND ICI REDUCTION IN MC-CDMA SYSTEM THROUGH CONJUGATE WEIGHTED MUSIC BASED RPRCC SCHEME." Latin American Applied Research - An international journal 46, no. 4 (October 31, 2016): 153–59. http://dx.doi.org/10.52292/j.laar.2016.347.
Full textKim, Kyung-Hwa, and Bangwon Seo. "Efficient ICI Self-Cancellation Scheme for OFDM Systems." ETRI Journal 36, no. 4 (August 1, 2014): 537–44. http://dx.doi.org/10.4218/etrij.14.0113.0747.
Full textDissertations / Theses on the topic "ICI Cancellation"
Li, Rui. "Iterative Receiver for MIMO-OFDM System with ICI Cancellation and Channel Estimation." Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/3544.
Full textLi, Rui. "Iterative Receiver for MIMO-OFDM System with ICI Cancellation and Channel Estimation." University of Sydney, 2008. http://hdl.handle.net/2123/3544.
Full textAs a multi-carrier modulation scheme, Orthogonal Frequency Division Multiplexing (OFDM) technique can achieve high data rate in frequency-selective fading channels by splitting a broadband signal into a number of narrowband signals over a number of subcarriers, where each subcarrier is more robust to multipath. The wireless communication system with multiple antennas at both the transmitter and receiver, known as multiple-input multiple-output (MIMO) system, achieves high capacity by transmitting independent information over different antennas simultaneously. The combination of OFDM with multiple antennas has been considered as one of most promising techniques for future wireless communication systems. The challenge in the detection of a space-time signal is to design a low-complexity detector, which can efficiently remove interference resulted from channel variations and approach the interference-free bound. The application of iterative parallel interference canceller (PIC) with joint detection and decoding has been a promising approach. However, the decision statistics of a linear PIC is biased toward the decision boundary after the first cancellation stage. In this thesis, we employ an iterative receiver with a decoder metric, which considerably reduces the bias effect in the second iteration, which is critical for the performance of the iterative algorithm. Channel state information is required in a MIMO-OFDM system signal detection at the receiver. Its accuracy directly affects the overall performance of MIMO-OFDM systems. In order to estimate the channel in high-delay-spread environments, pilot symbols should be inserted among subcarriers before transmission. To estimate the channel over all the subcarriers, various types of interpolators can be used. In this thesis, a linear interpolator and a trigonometric interpolator are compared. Then we propose a new interpolator called the multi-tap method, which has a much better system performance. In MIMO-OFDM systems, the time-varying fading channels can destroy the orthogonality of subcarriers. This causes serious intercarrier interference (ICI), thus leading to significant system performance degradation, which becomes more severe as the normalized Doppler frequency increases. In this thesis, we propose a low-complexity iterative receiver with joint frequency- domain ICI cancellation and pilot-assisted channel estimation to minimize the effect of time-varying fading channels. At the first stage of receiver, the interference between adjacent subcarriers is subtracted from received OFDM symbols. The parallel interference cancellation detection with decision statistics combining (DSC) is then performed to suppress the interference from other antennas. By restricting the interference to a limited number of neighboring subcarriers, the computational complexity of the proposed receiver can be significantly reduced. In order to construct the time variant channel matrix in the frequency domain, channel estimation is required. However, an accurate estimation requiring complete knowledge of channel time variations for each block, cannot be obtained. For time- varying frequency-selective fading channels, the placement of pilot tones also has a significant impact on the quality of the channel estimates. Under the assumption that channel variations can be approximated by a linear model, we can derive channel state information (CSI) in the frequency domain and estimate time-domain channel parameters. In this thesis, an iterative low-complexity channel estimation method is proposed to improve the system performance. Pilot symbols are inserted in the transmitted OFDM symbols to mitigate the effect of ICI and the channel estimates are used to update the results of both the frequency domain equalizer and the PICDSC detector in each iteration. The complexity of this algorithm can be reduced because the matrices are precalculated and stored in the receiver when the placement of pilots symbols is fixed in OFDM symbols before transmission. Finally, simulation results show that the proposed MIMO-OFDM iterative receiver can effectively mitigate the effect of ICI and approach the ICI-free performance over time-varying frequency-selective fading channels.
Wu, Meng. "ICI Reduction Methods for MC-CDMA Systems." Wright State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=wright1222376028.
Full textEtiler, Burkay. "Comparison Of The Intercarrier Interference Cancellation Methods In Ofdm Systems." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/2/12608825/index.pdf.
Full textConventional Pilots&rdquo
and &ldquo
Clustered Pilots&rdquo
pilot-aided CFO estimation techniques for ICI cancellation. Furthermore, we also implemented a new scheme by using the odd symmetry between pilot symbols. Nyquist windowing techniques apply windowing at the receiver side. We have implemented second order polynomial class of Nyquist windows and Nyquist window with Franks pulse used to mitigate ICI. These ICI cancellation methods are compared in AWGN and multipath Rayleigh fading channel models in terms of BER and carrier to interference ratio. It is shown that repeated data methods shows better performances than pilot-aided CFO estimation methods with a cost of increased bandwidth usage especially in high SNR&rsquo
s.
Mustefa, Dinsefa, and Ermias Mebreku. "OFDM Systems Offset Estimation and Cancellation Using UKF and EKF." Thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-15524.
Full textHuang, Yu-Shun, and 黃裕舜. "A Novel ICI Self-Cancellation Scheme." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/w8csn4.
Full text國立臺北科技大學
電腦與通訊研究所
98
Here we bring up a novel intercarrier interference (ICI) self-cancellation scheme for OFDM systems, it’s coefficient pair is (1,-μ), and their loading subcarriers are kth and N-k-1th subcarrier, where N is the number of subcarriers. It has better carrier-to-interference-ratio (CIR) than all previous schemes by at least 1.7dB when normalized frequency offset is 0.5.
Kuo, Chia-Yun, and 郭珈紜. "Successive ICI Cancellation in MIMO-OFDM Systems." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/70501349723159410930.
Full text國立交通大學
電信工程系所
93
Fast channel variation will destroy the orthogonality of subcarriers in OFDM systems and this will result in intercarrier interference (ICI). Minimum mean square error (MMSE) and successive ICI cancellation have been proposed to mitigate this problem in single-input single-output (SISO) OFDM systems. However, the performance of these methods greatly depends on the channel estimation. To obtain good estimation, a great amount of pilot tones are required and this will reduce the bandwidth utilization efficiency. In this thesis, we propose a recursive channel estimation and successive ICI cancellation for MIMO-OFDM systems. The main idea is to successively cancel ICI and perform channel re-estimation. In ICI canceling, all tones in MIMO-OFDM systems are jointly sorted. To reduce the computational complexity, we also employ a fast algorithm in the MMSE estimate. Simulations show that the proposed algorithm can greatly reduce the ICI effect in MIMO-OFDM systems operated in the fast channel variation environment.
許文基. "Study on ICI Cancellation in Wireless OFDM Systems." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/85861288559093600370.
Full text中華大學
電機工程學系碩士班
87
A new transmission scheme, called the OFDM (Orthogonal Frequency Division Multiplexing) system, is proposed to combat the multi-path fading in wireless channel recently. The OFDM system overcome the intersymbol interference (ISI) due to delay spread by inserting a guard period (also called cyclic prefix) between neighbor symbols. Since the using of cyclic prefix will reduce the capability of transmission rate, the CP length should be kept within a reasonable length. However, if the CP length is shorter than the delay spread, the orthogonality among sub-channels will be destroyed, and an interchannel interference (ICI) will occur. In the thesis, we plan to evaluate the performance of using a decision feedback equalizer (DFE) structure to cancel both the ISI and ICI due to CP shorting. Three channel models are presented to simulate the different transmission environment. The relationship between the guard period and the ICI spectrum is first simulated and analyzed. Then an ICI canceller is used to cancel the induced ICI spectrum. To decrease the circuit complexity, we use SRA algorithm as the ICI canceller's weight update algorithm.
Chou, Yi-chuan, and 周益川. "ICI Self-Cancellation in MISO-OFDM with Distributed Antenna." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/57748323274470845715.
Full text國立中山大學
通訊工程研究所
98
In this thesis, we investigate a wireless communications system with distributed transmit antennas. Under such system scenario, the received signal has multiple carrier frequency offsets (CFOs) since each transmitter has its own oscillator, leading to serious inter-carrier interference (ICI) at the receiver end. Therefore, an ICI self-cancellation scheme is proposed in this thesis, where two different relay nodes use different sub-carriers. When the signals from different relay nodes are combined at the destination node, the ICI self-cancellation can be achieved. In addition, the quality of the received signal can be further improved if the residual CFO can be properly compensated. Traditionally, the medium value of the various CFOs is taken for compensation because of its simplicity. However, a medium value does not result in the optimal performance. In this thesis, a close form expression of optimal CFO is derived to maximize the average signal to interference power ratio. It is shown that the optimal CFO compensation is a function of channel state and individual CFOs. Simulation experiments are conducted to investigate the performance of the proposed scheme. It is shown that the system bit error rate can be substantially improved when the CFO is less than 0.3 subcarrier spacing.
Tsai, Chia-Hang, and 蔡嘉航. "Iterative Channel Estimation and ICI Cancellation for Mobile WiMAX Systems." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/g38wu6.
Full text國立交通大學
電信工程系所
95
Orthogonal Frequency Division Multiplexing (OFDM) is a popular technique in modern wireless communications. There are many systems adopting the OFDM technique, such as IEEE 802.11 a/g/n, IEEE 802.16, Digital Video Broadcasting, etc. On the other hand, mobile transmission is a trend in future wireless communications. For example, IEEE 802.16-2005 supports vehicle speed up to 120 km/hour. OFDM systems can be used efficiently in time invariant environments with one-tap equalizers. However, subcarriers are no longer orthogonal to each other in time-varying channels, and this causes the intercarrier interference (ICI) and degrades the system performance. To alleviate this problem, we propose an iterative ICI mitigation and time-varying channel estimation scheme, which can obtain the ICI information from the channel estimate using piece-wise linear or Taylor series approximate and then cancel it in parallel fashion. The proposed PIC structure and the overall iterative system structure designed are discussed in detail. Finally, we evaluate the performance of the proposed system under mobility using IEEE 802.16-2005 standard and confirm that it achieves good BER performance.
Book chapters on the topic "ICI Cancellation"
Cheng, Xilin, Liuqing Yang, and Xiang Cheng. "Effective ICI Cancellation for OFDM Transmission in RA-UAC." In Wireless Networks, 81–102. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-33207-9_6.
Full textWon, Kyunghoon, Jun-Hee Jang, Se-bin Im, and Hyung-Jin Choi. "An Efficient ICI Cancellation Method for Cooperative STBC-OFDM Systems." In Computational Science and Its Applications – ICCSA 2010, 118–28. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12179-1_12.
Full textBoumediene, Fatima Zohra, Mohamed Tayebi, and Merahi Bouziani. "Comparative Study between ICI Self Cancellation and Symmetric Symbol Repetition." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 173–77. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11629-7_25.
Full textSabir, Zeeshan, Syed Abdul Rehman Yousaf, M. Inayatullah Babar, and M. Arif Wahla. "Improved Joint ICI Cancellation and Error Correction for OFDM System." In Advanced Research on Electronic Commerce, Web Application, and Communication, 1–11. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20367-1_1.
Full textMounika, N., M. Durga Rani, J. Lakshmi Narayana, and M. Naga Lakshmi Kalyani. "ICI Cancellation in OFDM Systems Under Stanford University Interim Channel Model." In Lecture Notes in Networks and Systems, 241–48. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8204-7_25.
Full textYadav, Ravi Prakash, Ritesh Kumar Mishra, and Shipra Swati. "A Novel ICI Self-cancellation Scheme for Improving the Performance of OFDM System." In Advanced Computing, Networking and Informatics- Volume 2, 151–58. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07350-7_17.
Full textChiu, Yi-Jen, Chien-Sheng Chen, and Ting-Wei Chang. "Channel Estimation and ISI/ICI Cancellation for MIMO-OFDM Systems with Insufficient Cyclic Prefix." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 1203–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02469-6_2.
Full textStewart, V., C. F. N. Cowan, and S. Sezer. "Adaptive Echo Cancellation for Packet-Based Networks." In Telecommunications and Networking - ICT 2004, 516–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-27824-5_70.
Full textLa Foresta, Fabio, Nadia Mammone, and Francesco Carlo Morabito. "Artifact Cancellation from Electrocardiogram by Mixed Wavelet-ICA Filter." In Neural Nets, 78–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11731177_12.
Full textRajesh, Varshini, Shivani Krishna Kompella, and A. R. Abdul Rajak. "Literature Survey for MIMO Systems and Interference Cancellation in MIMO." In ICT Systems and Sustainability, 1–9. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-5987-4_1.
Full textConference papers on the topic "ICI Cancellation"
Vlachos, E., C. Mavrokefalidis, D. Ampeliotis, and K. Berberidis. "Regularized ICI Cancellation in V2V Communications." In the 16th International Conference. New York, New York, USA: ACM Press, 2015. http://dx.doi.org/10.1145/2797143.2797152.
Full textZhu, Ze, Xiang Tang, and Jizhang Zuo. "Self-Cancellation Method of OFDM ICI." In 2008 4th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM). IEEE, 2008. http://dx.doi.org/10.1109/wicom.2008.171.
Full textMiao-Wen Wen, Xiang Cheng, Xing Wei, Bo Ai, and Bing-Li Jiao. "A Novel Effective ICI Self-Cancellation Method." In 2011 IEEE Global Communications Conference (GLOBECOM 2011). IEEE, 2011. http://dx.doi.org/10.1109/glocom.2011.6133714.
Full textLi, Yuke, Miaowen Wen, Xiang Cheng, and Liu-Qing Yang. "Index Modulated OFDM with ICI Self-Cancellation." In 2016 IEEE 83rd Vehicular Technology Conference (VTC Spring). IEEE, 2016. http://dx.doi.org/10.1109/vtcspring.2016.7504286.
Full textYeh, Hen-Geul, and Kung Yao. "A parallel ICI cancellation technique for OFDM systems." In GLOBECOM 2012 - 2012 IEEE Global Communications Conference. IEEE, 2012. http://dx.doi.org/10.1109/glocom.2012.6503688.
Full textShu-Ming Tseng, Yu-Chin Kuo, and Yueh-Teng Hsu. "Turbo ICI cancellation and LDPC decoding for OFDM systems." In 2008 International Conference on Advanced Technologies for Communications (ATC). IEEE, 2008. http://dx.doi.org/10.1109/atc.2008.4760609.
Full textShi, Qiang, Yong Fang, and Min Wang. "A Novel ICI Self-Cancellation Scheme for OFDM Systems." In 2009 5th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM). IEEE, 2009. http://dx.doi.org/10.1109/wicom.2009.5302543.
Full textYeh, Hen-Geul, Seok-Chul Sean Kwon, and Son Doan. "Poster: Space-Time-Polarization ICI Parallel Cancellation OFDM Systems." In 2018 IEEE Vehicular Networking Conference (VNC). IEEE, 2018. http://dx.doi.org/10.1109/vnc.2018.8628402.
Full textZhang, Liang, Zhihong Hong, and Louis Thibault. "Iterative ICI estimation and cancellation for mobile OFDM systems." In 2010 25th Biennial Symposium on Communications. IEEE, 2010. http://dx.doi.org/10.1109/bsc.2010.5472915.
Full textKumar, P. Vijaya, and N. Venkateswara Rao. "A Novel Method for ICI Cancellation in OFDM Systems." In 2018 Third International Conference on Electrical, Electronics, Communication, Computer Technologies and Optimization Techniques (ICEECCOT). IEEE, 2018. http://dx.doi.org/10.1109/iceeccot43722.2018.9001368.
Full textReports on the topic "ICI Cancellation"
Corral, Leonardo, Giulia Lotti, José Martínez Carrasco, and Camilo Pecha. Operational excellence: understanding project financial cancellations and its impact on the delivery of results. Inter-American Development Bank, January 2022. http://dx.doi.org/10.18235/0003952.
Full text