[1] [1] DAOUD S, GHRAYEB A. Using resampling to combat doppler scaling in UWA channels with single-carrier modulation and frequency-domain equalization ［J］. IEEE Transactions on Vehicular Technology, 2016, 65(3): 1261-1270.

[2] [2] ZHANG J T, YANG L L, HANZO L, et al.. Advances in cooperative single-carrier FDMA communications: beyond LTE-advanced ［J］. IEEE Communications Surveys & Tutorials, 2015, 17(2): 730-756.

[3] [3] WANG D, ZHAO Q, YANG L. Robust signal-to-noise ratio and noise variance estimation for single carrier frequency domain equalisation ultra-wideband wireless systems ［J］. IET Communications, 2015, 9(3): 1598-1605.

[4] [4] COON J, SANDELL M, BEACH M, et al.. Channel and noise variance estimation and tracking algorithms for unique-word based single-carrier systems ［J］. IEEE Transactions on Wireless Communications, 2006, 5(6): 1488-1496.

[5] [5] ZHENG Y H, XIAO C S. Channel estimation for frequency-domain equalization of single-carrier broadband wireless communications ［J］. IEEE Transactions on Vehicular Technology, 2009, 58(2): 815-823.

[6] [6] JIAO X J, ZHANG L, XIANG H G. PN based channel estimation in SC-FDE system ［J］. Journal of Beijing University, 2007, 37(1): 103-108. (in Chinese)

[7] [7] LI D P, LIU Y, ZHANG H L.Channel estimation for MIMO SC-FDE systems via time-domain based approaches ［J］. Journal of Communications, 2011, 32(2): 144-149. (in Chinese)

[8] [8] SCHNITER P. A message-passing receiver for BICM-OFDM over unknown clustered-sparse channels ［J］. IEEE Journal of Selected Topics in Signal Processing, 2011, 5(8): 1462-1474.

[9] [9] WANG H, GUO Q, ZHANG G, et al.. Pilot pattern optimization for sparse channel estimation in OFDM systems ［J］. IEEE Communications Letters, 2015, 19(7): 1233-1236.

[10] [10] QI C, YUE G, WU L, et al.. Pilot design schemes for sparse channel estimation in OFDM systems ［J］. IEEE Transactions on Vehicular Technology, 2015, 64(4): 1493-1505.

[11] [11] HE X, SONG R, ZHU W P. Pilot allocation for distributed-compressed-sensing-based sparse channel estimation in MIMO-OFDM systems ［J］. IEEE Transactions on Vehicular Technology, 2016, 65(5): 2990-3004.

[12] [12] GAO Z, ZHANG C, WANG Z, et al.. Prior information aided iterative hard threshould: a low-complexity high-accuracy compressive sensing based channel estimation for TDS-OFDM ［J］. IEEE Transactions on Wireless Communications, 2015, 14(1): 242-250.

[13] [13] MENG Q W, HUANG J G, HAN J, et al.. Compressed sensing based sparse channel estimation scheme for underwater single carrier block transmission ［J］. Journal of Beijing University of Posts and Telecommunications, 2012, 35(5): 14-17. (in Chinese)

[14] [14] MENG Q W, HUANG J G, HE CH B, et al.. An compressed sensing estimation method for sparse channels using time domain measurement matrix ［J］. Journal of Xian Jiaotong University, 2012, 46(8): 94-99. (in Chinese)