A Low-Complexity Synchronizer for OFDM-UWB-Based Vehicular Communications

The high implementation complexity of multiband orthogonal frequency-division multiplexing (MB-OFDM) ultra-wideband (UWB) technology is the major hurdle for applying it to vehicular communications. This paper presents a comprehensive synchronizer with low complexity and high performance for the MB-OFDM UWB. A low-complex overall architecture is proposed, in which the sub-functions are divided into amplitude-detection-based functions and phase-detection-based functions. All of the amplitude-detection-based functions are implemented based on a simplified cross correlation-based matched filter, and a serial structure-based auto-correlation block is designed exclusively for carrier frequency offset estimation. Several effective methods for the sub-functions are proposed based on the proposed overall architecture. Evaluation results show that the proposed synchronizer has high performance with low complexity.

[1]  Zhongding Lei,et al.  Timing synchronization for ultra-wideband (UWB) multi-band OFDM systems , 2005, VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005..

[2]  An-Yeu Wu,et al.  A Systematic Design Approach to the Band-Tracking Packet Detector in OFDM-Based Ultrawideband Systems , 2007, IEEE Transactions on Vehicular Technology.

[3]  Alhussein A. Abouzeid,et al.  A Synchronization Design for UWB-Based Wireless Multimedia Systems , 2010, IEEE Transactions on Broadcasting.

[4]  Driss Aboutajdine,et al.  An efficient transceiver for vehicular ad hoc network based on IR-UWB , 2014, 2014 Second World Conference on Complex Systems (WCCS).

[5]  Xiaoli Ma,et al.  Timing and Frequency Synchronization for OFDM Downlink Transmissions Using Zadoff-Chu Sequences , 2015, IEEE Transactions on Wireless Communications.

[6]  Xiaohu Ge,et al.  Energy efficiency of small cell backhaul networks based on Gauss-Markov mobile models , 2015, IET Networks.

[7]  Anuj Batra,et al.  A multi-band OFDM system for UWB communication , 2003, IEEE Conference on Ultra Wideband Systems and Technologies, 2003.

[8]  Oliver Chiu-sing Choy,et al.  Robust and low complexity packet detector design for MB-OFDM UWB , 2009, 2009 IEEE International Symposium on Circuits and Systems.

[9]  Hong-Zhou Tan,et al.  A power-efficient synchronization scheme for the MB-OFDM-based UWB systems , 2015, EURASIP J. Wirel. Commun. Netw..

[10]  Oliver Chiu-sing Choy,et al.  Robust, Low-Complexity, and Energy Efficient Downlink Baseband Receiver Design for MB-OFDM UWB System , 2012, IEEE Transactions on Circuits and Systems I: Regular Papers.

[11]  Jiafu Wan,et al.  A Novel Energy-Saving One-Sided Synchronous Two-Way Ranging Algorithm for Vehicular Positioning , 2015, Mob. Networks Appl..

[12]  Saswat Chakrabarti,et al.  Symbol timing synchronization for ultra-wideband (UWB) multi-band OFDM (MB-OFDM) systems , 2008, 2008 3rd International Conference on Communication Systems Software and Middleware and Workshops (COMSWARE '08).

[13]  Xiaodai Dong,et al.  Design and Analysis of Timing Synchronization in Block Transmission UWB Systems , 2011, IEEE Transactions on Communications.

[14]  Heidi Steendam,et al.  Synchronization sensitivity of multicarrier systems , 2004, Eur. Trans. Telecommun..

[15]  G.R. Aiello,et al.  Design of a multiband OFDM system for realistic UWB channel environments , 2004, IEEE Transactions on Microwave Theory and Techniques.

[16]  E. Zahedi,et al.  Packet Synchronization Structure with Peak Detection Algorithm for MB-OFDM UWB , 2006, 2006 IEEE International Conference on Semiconductor Electronics.

[17]  Yuping Lu,et al.  Pseudo-noise preamble based joint frame and frequency synchronization algorithm in OFDM communication systems , 2014 .

[18]  Khaled Ben Letaief,et al.  A robust timing and frequency synchronization for OFDM systems , 2003, IEEE Trans. Wirel. Commun..

[19]  Mahrokh G. Shayesteh,et al.  Novel Coarse Timing Synchronization Methods in OFDM Systems Using Fourth-Order Statistics , 2015, IEEE Transactions on Vehicular Technology.

[20]  C. K. Michael Tse,et al.  Use of UWB Impulse Radio Technology in In-Car Communications: Power Limits and Optimization , 2017, IEEE Transactions on Vehicular Technology.

[21]  Jiafu Wan,et al.  A survey on position-based routing for vehicular ad hoc networks , 2015, Telecommunication Systems.

[22]  Moe Z. Win,et al.  Frequency offset estimation for MB-OFDM-based UWB systems , 2008, IEEE Trans. Commun..

[23]  Barry G. Evans,et al.  Robust time-domain timing and frequency synchronization for OFDM systems , 2009, IEEE Transactions on Consumer Electronics.

[24]  Athanasios V. Vasilakos,et al.  Mobile Crowd Sensing for Traffic Prediction in Internet of Vehicles , 2016, Sensors.

[25]  Xiaohu Ge,et al.  Vehicular Communications for 5G Cooperative Small-Cell Networks , 2016, IEEE Transactions on Vehicular Technology.

[26]  Yu-Cheng Lin,et al.  An Adaptive Video Streaming System Over a Cooperative Fleet of Vehicles Using the Mobile Bandwidth Aggregation Approach , 2016, IEEE Systems Journal.

[27]  Hongbin Li,et al.  Maximum Likelihood Synchronization for DVB-T2 in Unknown Fading Channels , 2015, IEEE Transactions on Broadcasting.

[28]  Zhihong Qian,et al.  A Timing Synchronization Scheme for MB-OFDM Based UWB Systems , 2015, 2015 International Conference on Network and Information Systems for Computers.

[29]  Hua Yu,et al.  Robust Timing Estimation Method for OFDM Systems With Reduced Complexity , 2014, IEEE Communications Letters.

[30]  Donald C. Cox,et al.  Robust frequency and timing synchronization for OFDM , 1997, IEEE Trans. Commun..

[31]  Ranjan Bose.  Ultra wideband indoor channel modeling for personal area networking , 2006, 2006 First European Conference on Antennas and Propagation.