Design and Evaluation of a Novel Short Prototype Filter for FBMC/OQAM Modulation

Filter-bank multi-carrier with offset quadrature amplitude modulation (FBMC/OQAM) is considered by recent research projects as one of the key enablers for the future 5G air interface. It exhibits better spectral shape and improves mobility support compared to orthogonal frequency-division multiplexing (OFDM) thanks to the use of a time and frequency localized prototype filter. The choice of this filter is crucial for FBMC/OQAM, due to its substantial impact on achieved performance and complexity levels. In the context of 5G, short frame sizes are foreseen in several communication scenarios to reduce system latency, and therefore short filters are preferred. In this context, a novel short filter allowing for near perfect reconstruction and having the same size as one OFDM symbol is proposed. Using frequency-spread (FS) implementation for the FBMC/OQAM receiver, analytical analysis and simulation results show that the proposed filter exhibits better robustness to several types of channel impairments when compared to state-of-the-art prototype filters and OFDM modulation. In addition, FS-based hardware architecture of the filtering stage is proposed, showing lower complexity than the classical polyphase network-based implementation.

[1]  Pierre Siohan,et al.  Impact of time and carrier frequency offsets on the FBMC/OQAM modulation scheme , 2014, Signal Process..

[2]  B. Hirosaki,et al.  An Orthogonally Multiplexed QAM System Using the Discrete Fourier Transform , 1981, IEEE Trans. Commun..

[3]  R. M. Hewlitt,et al.  Canonical signed digit representation for FIR digital filters , 2000, 2000 IEEE Workshop on SiGNAL PROCESSING SYSTEMS. SiPS 2000. Design and Implementation (Cat. No.00TH8528).

[4]  Pierre Siohan,et al.  Analysis and design of OFDM/OQAM systems based on filterbank theory , 2002, IEEE Trans. Signal Process..

[5]  Pierre Siohan,et al.  Design techniques for orthogonal Modulated filterbanks based on a compact representation , 2004, IEEE Transactions on Signal Processing.

[6]  Maurice G. Bellanger,et al.  FS-FBMC: A flexible robust scheme for efficient multicarrier broadband wireless access , 2012, 2012 IEEE Globecom Workshops.

[7]  Tao Jiang,et al.  Coded Auxiliary Pilots for Channel Estimation in FBMC-OQAM Systems , 2016, IEEE Transactions on Vehicular Technology.

[8]  Henrique S. Malvar.  Modulated QMF filter banks with perfect reconstruction , 1990 .

[9]  Pierre Siohan,et al.  Derivation of analytical expressions for flexible PR low complexity FBMC systems , 2013, 21st European Signal Processing Conference (EUSIPCO 2013).

[10]  R. M. A. P. Rajatheva,et al.  FBMC-based air interface for 5G mobile: Challenges and proposed solutions , 2014, 2014 9th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM).

[11]  B. Saltzberg,et al.  Performance of an Efficient Parallel Data Transmission System , 1967, IEEE Transactions on Communication Technology.

[12]  Maurice G. Bellanger,et al.  FS-FBMC: An alternative scheme for filter bank based multicarrier transmission , 2012, 2012 5th International Symposium on Communications, Control and Signal Processing.

[13]  Mario Tanda,et al.  Performance analysis of some timing offset equalizers for FBMC/OQAM systems , 2015, Signal Process..

[14]  Franz Franchetti,et al.  SPIRAL: Code Generation for DSP Transforms , 2005, Proceedings of the IEEE.

[15]  Amer Baghdadi,et al.  Hardware prototyping of FBMC/OQAM baseband for 5G mobile communication systems , 2014, RSP 2014.

[16]  Pierre Siohan,et al.  Comparative evaluation on real-time hardware platforms of coded OFDM/QAM and OFDM/OQAM systems , 2012, 2012 International Symposium on Wireless Communication Systems (ISWCS).

[17]  Fan Li,et al.  On design of conjugated transmission scheme for FBMC/OQAM systems with interference cancellation , 2017, China Communications.

[18]  P. Siohan,et al.  FBMC/OQAM Modulators with Half Complexity , 2011, 2011 IEEE Global Telecommunications Conference - GLOBECOM 2011.

[19]  Hamid Saeedi-Sourck,et al.  Low-complexity CFO correction of frequency-spreading SMT in uplink of multicarrier multiple access networks , 2015, 2015 23rd Iranian Conference on Electrical Engineering.

[20]  Mario Tanda,et al.  Frequency domain CFO compensation for FBMC systems , 2015, Signal Process..

[21]  K. W. Martin,et al.  Small side-lobe filter design for multitone data-communication applications , 1998 .

[22]  Claude Berrou,et al.  Coded orthogonal frequency division multiplex [TV broadcasting] , 1995, Proc. IEEE.

[23]  Amer Baghdadi,et al.  Low-Complexity Pipelined Architecture for FBMC/OQAM Transmitter , 2016, IEEE Transactions on Circuits and Systems II: Express Briefs.

[24]  Milan Narandzic,et al.  Multicarrier waveforms with I/Q staggering: uniform and nonuniform FBMC formats , 2014, EURASIP J. Adv. Signal Process..

[25]  Plessis Robinson,et al.  TDM-FDM Transmultiplexer: Digital Polyphase and FFT , 1974 .

[26]  Mario Tanda,et al.  Lapped-OFDM as an Alternative to CP-OFDM For 5G Asynchronous Access and Cognitive Radio , 2015, 2015 IEEE 81st Vehicular Technology Conference (VTC Spring).

[27]  Dominique Noguet,et al.  A flexible FS-FBMC receiver for dynamic access in the TVWS , 2014, 2014 9th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM).