Frequency synchronization for interleaved OFDMA uplink systems

Abstract This study presents a novel frequency synchronization scheme for orthogonal frequency division multiple access uplink systems. The proposed approach first estimates the carrier frequency offset (CFO) from the zeros of a backward prediction system. Then, based on the CFO estimates, two types of filters, namely zero-forcing and the linearly constrained minimum variance filters, are developed to suppress multiple access interference (MAI). Computer simulation results show that in addition to having a reduced computational complexity, the proposed algorithm has reliable CFO estimates and possesses at least a 3-dB power gain in MAI suppression over conventional minimum mean square error algorithms for frequency synchronization.

[1]  Xiaoli Ma,et al.  Carrier frequency offset estimation for OFDMA uplink using null sub-carriers , 2014, Digit. Signal Process..

[2]  C.-C. Jay Kuo,et al.  Synchronization Techniques for Orthogonal Frequency Division Multiple Access (OFDMA): A Tutorial Review , 2007, Proceedings of the IEEE.

[3]  C.-C. Jay Kuo,et al.  Maximum-likelihood synchronization and channel estimation for OFDMA uplink transmissions , 2006, IEEE Transactions on Communications.

[4]  Yu-Dong Yao,et al.  Deterministic multiuser carrier-frequency offset estimation for interleaved OFDMA uplink , 2004, IEEE Transactions on Communications.

[5]  P. P. Vaidyanathan,et al.  The Theory of Linear Prediction , 2008, Synthesis Lectures on Signal Processing.

[6]  Per Ödling,et al.  A time and frequency synchronization scheme for multiuser OFDM , 1999, IEEE J. Sel. Areas Commun..

[7]  Khaled Ben Letaief,et al.  An interference-cancellation scheme for carrier frequency offsets correction in OFDMA systems , 2005, IEEE Transactions on Communications.

[8]  Lie-Liang Yang,et al.  Carrier Frequency Offset Estimation in Uplink OFDMA Systems: An Approach Relying on Sparse Recovery , 2017, IEEE Transactions on Vehicular Technology.

[9]  Miin-Jong Hao.  Decision Feedback Frequency Offset Estimation and Tracking for General ICI Self-Cancellation Based OFDM Systems , 2007, IEEE Transactions on Broadcasting.

[10]  See-May Phoong,et al.  Blind CFO Estimation in OFDMA Uplink Transmission With General Carrier Assignment Scheme , 2018, IEEE Communications Letters.

[11]  Shih-Jen Yang,et al.  On the CFO estimation for interleaved OFDMA uplinks , 2016, J. Frankl. Inst..

[12]  Daesik Hong,et al.  Carrier Frequency Offset Estimation Using ESPRIT for Interleaved OFDMA Uplink Systems , 2007, IEEE Transactions on Vehicular Technology.

[13]  A. G. Orozco-Lugo,et al.  Carrier Frequency Offset Estimation in OFDMA using Digital Filtering , 2013, IEEE Wireless Communications Letters.

[14]  Leah H. Jamieson,et al.  A Highly Parallel Algorithm for Root Extraction , 1989, IEEE Trans. Computers.

[15]  Chi Chung Ko,et al.  Multiple-Access Interference Suppression for Interleaved OFDMA System Uplink , 2008, IEEE Transactions on Vehicular Technology.

[16]  Feifei Gao,et al.  Blind maximum likelihood CFO estimation for OFDM systems via polynomial rooting , 2006, IEEE Signal Processing Letters.

[17]  Qi Cheng.  Performance study of residual carrier frequency offset estimation methods in OFDM WLAN systems , 2013, Digit. Signal Process..

[18]  Chintha Tellambura,et al.  Probability of error calculation of OFDM systems with frequency offset , 2001, IEEE Trans. Commun..

[19]  Yung-Yi Wang,et al.  On the CFO estimation of the OFDM: A frequency domain approach , 2014, J. Frankl. Inst..

[20]  Yiyan Wu,et al.  COFDM: an overview , 1995, IEEE Trans. Broadcast..

[21]  Hyung-Myung Kim,et al.  An Improved Frequency Offset Estimation Based on Companion Matrix in Multi-User Uplink Interleaved OFDMA Systems , 2014, IEEE Signal Processing Letters.

[22]  Gerhard Fettweis,et al.  Generalized Frequency Division Multiplexing for 5th Generation Cellular Networks , 2014, IEEE Transactions on Communications.

[23]  J. Makhoul,et al.  Linear prediction: A tutorial review , 1975, Proceedings of the IEEE.

[24]  L. Godara.  Application of antenna arrays to mobile communications. II. Beam-forming and direction-of-arrival considerations , 1997, Proc. IEEE.

[25]  Petre Stoica,et al.  MUSIC, maximum likelihood, and Cramer-Rao bound , 1989, IEEE Transactions on Acoustics, Speech, and Signal Processing.

[26]  Yung-Yi Wang,et al.  A Subspace-Based CFO Estimation Algorithm for General ICI Self-Cancellation Precoded OFDM Systems , 2013, IEEE Transactions on Wireless Communications.

[27]  Thomas Kailath,et al.  Fast subspace decomposition , 1994, IEEE Trans. Signal Process..

[28]  D.J. Goodman,et al.  Single carrier FDMA for uplink wireless transmission , 2006, IEEE Vehicular Technology Magazine.

[29]  M. N. S. Swamy,et al.  Joint Carrier Frequency Offset and Doubly Selective Channel Estimation for MIMO-OFDMA Uplink With Kalman and Particle Filtering , 2018, IEEE Transactions on Signal Processing.

[30]  Jong-Ho Lee,et al.  Detection of Interleaved OFDMA Uplink Signals in the Presence of Residual Frequency Offset Using the SAGE Algorithm , 2007, IEEE Transactions on Vehicular Technology.

[31]  Jeffrey G. Andrews,et al.  What Will 5G Be? , 2014, IEEE Journal on Selected Areas in Communications.

[32]  Sergio Barbarossa,et al.  Time and frequency synchronization of orthogonal frequency division multiple access systems , 2001, ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240).