A DOST Based Hybrid Fast Spectral Estimation for CR
Citation
Bommidi Sridhar, Dr Srinivasulu Tadisetty "A DOST Based Hybrid Fast Spectral Estimation for CR", International Journal of Engineering Trends and Technology (IJETT), V49(1),54-58 July 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
The artificial spectrum scarcity has been created irrespective of the geographic allocations, frequency and time due to the over-crowed unutilized allocated licensed frequency bands. to avoid this underutilization of the spectrum we have focused, firstly, on the spectrum sensing techniques. however, various sensing techniques arc prevailed in the wide-range of literature. The propose a novel hybrid dost based fast spectral estimation for cognitive radio systems to enhance the performance of the spectral estimation of the cognitive radio systems in the presence of fading environment.
References
[1]. Armstrong and Jean. "OFDM for optical communications." Journal of lightwave technology, Vol. 27, No. 3, pp: 189-204, 2009.
[2]. Hwang, Taewon, Chenyang Yang, Gang Wu, Shaoqian Li, and Geoffrey Ye Li, "OFDM and its wireless applications: a survey." IEEE transactions on Vehicular Technology, Vol.58, No. 4, pp: 1673-1694, 2009.
[3]. Wang, Xianbin, Paul Ho, and Yiyan Wu, "Robust channel estimation and ISI cancellation for OFDM systems with suppressed features." IEEE Journal on Selected Areas in communications, Vol. 23, No. 5, pp: 963-972, 2005.
[4]. Hassib, Mustafa Dh, Mandeep Singh, Mahamod Ismail, and RosdiadeeNordin, "Efficient and low complexity STBC-OFDM scheme over fading channel." In 2012 18th Asia-Pacific Conference on Communications (APCC), pp. 402-406. IEEE, 2012.
[5]. Ku, Meng-Lin, and Chia-Chi Huang, "A refined channel estimation method for STBC/OFDM systems in high-mobility wireless channels." IEEE Transactions on Wireless Communications, Vol. 7, No. 11, pp: 4312-4320, 2008.
[6]. Chen, Hsiao-Yun, Meng-Lin Ku, Shyh-JyeJou, and Chia-Chi Huang, "A robust channel estimator for high-mobility STBC-OFDM systems." IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 57, No. 4, pp: 925-936, 2010.
[7]. Jeon, Sungho, Jae-Shin Han, Jeong-Min Choi, and Jong-SooSeo, "Cooperative space-time block coded full-duplex relaying over frequency-selective channel." IET Communications, Vol. 9, No. 7, pp: 960-968, 2015.
[8]. Wang, Dandan, HlaingMinn, and Naofal Al-Dhahir. "A robust asynchronous multiuser STBC-OFDM transmission scheme for frequency-selective channels." IEEE Transactions on Wireless Communications, Vol. 7, No. 10, pp: 3725-3731, 2008.
[9]. Naeiny, Mahmoud Ferdosizadeh, and FarokhMarvasti, "Selected mapping algorithm for PAPR reduction of space-frequency coded OFDM systems without side information." IEEE transactions on Vehicular technology, Vol. 60, No. 3, pp: 1211-1216, 2011.
[10]. Kwon, Ui-Kun, Dongsik Kim, Kiho Kim, and Gi-Hong Im, "Amplitude clipping and iterative reconstruction of STBC/SFBC-OFDM signals." IEEE signal processing letters, Vol. 14, No. 11, pp: 808-811, 2007.
[11]. Ku, Meng-Lin, and Chia-Chi Huang, "A refined channel estimation method for STBC/OFDM systems in high-mobility wireless channels." IEEE Transactions on Wireless Communications, Vol. 7, No. 11, pp: 4312-4320, 2008.
[12]. Kwon, Ui-Kun, Gi-Hong Im, and Eung-Sun Kim, "An iteration technique for recovering insufficient cyclic prefix and clipped OFDM signals." IEEE Signal Processing Letters, Vol. 14, No. 5, pp: 317-320, 2007.
[13]. Alexander, Paul, David Haley, and Alex Grant, "Cooperative intelligent transport systems: 5.9-GHz field trials." Proceedings of the IEEE, Vol. 99, No. 7, pp: 1213-1235, 2011.
[14]. Shin, Changyong, Robert W. Heath, and Edward J. Powers, "Non-redundant precoding-based blind and semi-blind channel estimation for MIMO block transmission with a cyclic prefix." IEEE Transactions on Signal Processing, Vol. 56, No. 6,pp: 2509-2523, 2008.
[15]. Ahn, Seok-Ki, and Kyeongcheol Yang, "A novel subblock-based frequency-domain equalizer over doubly-selective channels." IEEE Communications Letters, Vol. 17, No. 8, pp: 1517-1520, 2013.
[16]. Won, Hui-Chul, and Gi-Hong Im, "Iterative cyclic prefix reconstruction and channel estimation for a STBC OFDM system." IEEE communications letters, Vol. 9, No. 4, pp: 307-309, 2005.
[17]. Guo, Qinghua, Li Ping, and Defeng Huang, "A low-complexity iterative channel estimation and detection technique for doubly selective channels." IEEE Transactions on Wireless Communications, Vol. 8, No. 8, pp: 4340-4349, 2009.
[18]. Chen, Shaoping, and Cuitao Zhu, "ICI and ISI analysis and mitigation for OFDM systems with insufficient cyclic prefix in time-varying channels." IEEE Transactions on Consumer Electronics, Vol. 50, No. 1, pp: 78-83, 2004.
[19]. Sahin, Alphan, and HuseyinArslan, "Edge windowing for OFDM based systems." IEEE Communications Letters, Vol. 15, No. 11, pp: 1208-1211, 2011.
[20]. Liu, Hong, and Philip Schniter, "Iterative frequency-domain channel estimation and equalization for single-carrier transmissions without cyclic-prefix." IEEE Transactions on Wireless Communications, Vol. 7, No. 10, pp: 3686-3691, 2008.
[21] Md. MahmudulHasan, “A new PAPR reduction technique in OFDM systems using linear predictive coding”, Wireless personal communications, Springer, vol. 75, no. 1, pp. 707-21, 2014.
[22] Carlos Prieto delAmo and M. Julia Fernández-GetinoGarcía, “Iterative joint estimation procedure for channel and frequency offset in multi-antenna OFDM systems with an insufficient cyclic prefix”, IEEE Transactions on Vehicular Technology. Vol. 62, no. 8, pp. 3653-62, 2013.
[23] Chun-Ying Ma, Sheng-Wen Liu and Chia-Chi Huang, “Low-complexity ICI suppression methods utilizing cyclic prefix for OFDM systems in high-mobility fading channels”, IEEE Transactions on Vehicular Technology, vol. 63, no. 2, pp. 718-30, 2014.
[24] Amritpal Singh and Harjit Singh, “Peak to average power ratio reduction in OFDM system using hybrid technique”, Optik-International Journal for Light and Electron Optics, vol. 127, no. 6, pp. 3368-71, 2016.
[25] ChunjiangDuanmu and Hongtao Chen, “Reduction of the PAPR in OFDM systems by intelligently applying both PTS and SLM algorithms”, Wireless personal communications, vol. 74, no. 2, pp. 849-863, 2014.
[26] Bommidi Sridhar, Dr T.Srinivasulu, “A Novel High Re solution Spectrum Sensing Algorithm for Cognitive Radio Applications” IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-ISSN: 2278-2834,p- ISSN: 2278-8735.Volume 8, Issue 4 (Nov. - Dec. 2013), PP 30-38.
Keywords
CP-Cyclic Prefix, DOST-Discrete Orthonormal Stockwel Transform, OFDM-Orthogonal Frequency Division Multiplexing, PAPR-peak-to-average-power ratio, Enter key words or phrases in alphabetical order, separated by commas, SURE—Stein Unbiased Risk Estimator.