Joint channel estimation and turbo decoding for OFDM-based systems

Flament, Maxime; Mielczarek, B.; Svensson, Arne

doi:10.1109/wpmc.2002.1088389

Cited by 7 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1] OFDM system and its physical layer VHDL implementation using different modulation scheme such as Quadrature Phase Shift Keying (QPSK) [10],Quadrature Amplitude Modulation (QAM) [4], Binary Phase Shift Keying (BPSK) [1] and various channel scheme e.g. Forward error coder (FEC)and Viterbi encoding/decoding based [3,4,5] have already been developed. Recently in order to achieve high throughput of OFDM system using Turbo coding scheme [6][7][8][9][10][11] has been used.…”

Section: Introductionmentioning

confidence: 99%

VHDL Implementation of low power turbo coded OFDM physical layer for wireless communication

Shrimali¹,

Sharma²,

Meena³

2018

IJET

View full text Add to dashboard Cite

Orthogonal Frequency Division Multiplexing (OFDM) is exceptionally favored system for rapid information transmission over remote channel. In this paper, VHDL implementation of low power turbo-coded OFDM (TCOFDM) Physical layer architecture is presented. In this architecture a low power memory-less pipelined FFT processor and Log-map turbo encoder/decoders are used to provide high throughput and lower complexity. Log-map turbo decoder provides high speed with good error correction capacity, while FFT/IFFT processor with single delay feedback (SDF) memory less architecture provide improved area and power efficiency. Proposed TCOFDM system is implemented using Xilinx ISE Design suite in the simulation results shows that the proposed scheme is having low power, high speed, high throughput and smaller area in comparison to other schemes.

show abstract

Section: Introductionmentioning

confidence: 99%

VHDL Implementation of low power turbo coded OFDM physical layer for wireless communication

Shrimali¹,

Sharma²,

Meena³

2018

IJET

View full text Add to dashboard Cite

show abstract

“…Turbo techniques have also been applied to channel estimation (CE) for OFDM in both time-and frequencyselective cases with the assumption of perfect synchronization [6][7][8][9][10][11]. Channel estimators are normally initialized based on pilots and then iteratively updated by soft information provided by the SISO decoder from the last iteration.…”

Section: Introductionmentioning

confidence: 99%

Turbo joint channel estimation, synchronization, and decoding for coded OFDM systems

Le‐Ngoc

Kwon

et al. 2010

AEU - International Journal of Electronics and Communications

View full text Add to dashboard Cite

“…Turbo techniques have also been applied to channel estimation (CE) for OFDM in both time-and frequencyselective cases with the assumption of perfect synchronization [7]- [12]. Channel estimators are normally initialized based on pilots and then iteratively updated by soft information provided by the SISO decoder from the last iteration.…”

Section: Introductionmentioning

confidence: 99%

Turbo Coded OFDM Receiver Using Joint Synchronization, Channel Estimation and Decoding

Le‐Ngoc

Kwon

et al. 2007

2007 IEEE Wireless Communications and Networking Conference

View full text Add to dashboard Cite

This paper presents a turbo coded OFDM receiver structure using joint synchronization, channel estimation and decoding. In this proposed scheme, the estimator uses soft-decision information from the previous soft-input soft-output (SISO) decoder to produce better estimates of the unknown parameters, which will in turn help the decoder to make more reliable decision. The whole process will be performed in an iterative manner and good system performance can be achieved with only a few iterations for moderate initial synchronization errors.Index Terms-Carrier frequency offset (CFO), iterative joint channel estimation (CE) and synchronization, OFDM, turbo principle, low SNRs.

show abstract

Joint channel estimation and turbo decoding for OFDM-based systems

Cited by 7 publications

References 4 publications

VHDL Implementation of low power turbo coded OFDM physical layer for wireless communication

VHDL Implementation of low power turbo coded OFDM physical layer for wireless communication

Turbo joint channel estimation, synchronization, and decoding for coded OFDM systems

Turbo Coded OFDM Receiver Using Joint Synchronization, Channel Estimation and Decoding

Contact Info

Product

Resources

About