A Novel Nonlinear Constellation Precoding for OFDM Systems with Subcarrier Grouping

Authors:
M. Raja;P. Muthuchidambaranathan
Affiliations:
Department of Electronics and Communication Engineering, National Institute of Technology (NIT), Tiruchirappalli, India;Department of Electronics and Communication Engineering, National Institute of Technology (NIT), Tiruchirappalli, India
Venue:
Wireless Personal Communications: An International Journal
Year:
2013

Citing 17
Cited 0

Insights on ICI and its effects on performance of OFDM systems

Digital Signal Processing
Bounds on Inter-carrier Interference Power of OFDM in a Gaussian Scattering Channel

Wireless Personal Communications: An International Journal
Inter-carrier interference power of OFDM in a uniform scattering channel

Computer Communications
BER of OFDM in Rayleigh fading environments with selective diversity

Wireless Communications & Mobile Computing
BER of OFDM with diversity and pulse shaping in Rayleigh fading environments

Digital Signal Processing
Closed form BER expressions for BPSK OFDM systems with frequency offset

IEEE Communications Letters
Signal space diversity techniques with fast decoding based on MDS codes

IEEE Transactions on Communications
Additional Insight on SAGE-based Carrier and Residual Frequency Offset Estimations in OFDM Systems

Wireless Personal Communications: An International Journal
Space-time-frequency coded OFDM over frequency-selective fading channels

IEEE Transactions on Signal Processing
Algebraic tools to build modulation schemes for fading channels

IEEE Transactions on Information Theory
Signal space diversity: a power- and bandwidth-efficient diversity technique for the Rayleigh fading channel

IEEE Transactions on Information Theory
On random rotations diversity and minimum MSE decoding of lattices

IEEE Transactions on Information Theory
A new approach to layered space-time coding and signal processing

IEEE Transactions on Information Theory
Diagonal algebraic space-time block codes

IEEE Transactions on Information Theory
Complex-field coding for OFDM over fading wireless channels

IEEE Transactions on Information Theory
Optimal Normalized Diversity Product of Lattice-Based Diagonal Space–Time Codes From QAM Signal Constellations

IEEE Transactions on Information Theory
ICI Reduction in OFDM System Using IMBH Pulse Shapes

Wireless Personal Communications: An International Journal

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper proposed a novel nonlinear constellation precoding (NCP) technique based on maximum distance separable (MDS) codes in orthogonal frequency-division multiplexing (OFDM) systems. The proposed method envisage to maximize both the diversity and coding gains for any number of diversity channels and desired diversity orders. The novel NCP technique combined with subcarrier groping in OFDM systems to replace the most existing linear constellation precoding (LCP) scheme. In this scheme, the full set of subcarriers are splitted into smaller groups and the codewords are constructed from $$q$$q point constellation mapper with MDS encoder. The maximum-likelihood (ML) decoder is used in the most existing signal space diversity technique which is replaced by diversity channel selection (DCS) to reduce the decoding complexity with the cost of marginal performance loss. The effect of the Inter-carrier interference (ICI) introduced by the carrier frequency offsets (CFO) also analyzed in the proposed OFDM system. The superiority of the proposed novel NCP technique over the previously proposed designs is verified by simulation results.