Comparative Performance Evaluation of Convolutionally Coded and LDPC Coded OFDM System over AWGN and SUI-5 Fading Channel

Goel, Ashish; Garg, Manoj Kumar

doi:10.1109/iccct.2012.58

Cited by 6 publications

(4 citation statements)

References 7 publications

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“…Previous research has determined that the modulation constellation, coding scheme, and channel and resource allocation are key drivers for improving the transmission technology and the above research challenges depend on factors such as the transmission power, transmission time, channel conditions, coding and modulation [30]. To overcome these challenges, channel coding schemes and the combination of channel coding with the OFDM system in next generation wireless transmissions have been analysed in the previous studies [8], [20]- [22].…”

Section: Related Workmentioning

confidence: 99%

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Modeling and Analysis of Error Process in 5G Wireless Communication Using Two-State Markov Chain

Myint

Sato

2019

IEEE Access

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In fifth-generation wireless communications, data transmission is challenging due to the occurrence of burst errors and packet losses that are caused by multipath fading in multipath transmissions. To acquire more efficient and reliable data transmissions and to mitigate the transmission medium degradation in the 5G networks, it is important to study the error patterns or burst the error sequences that can provide insights into the behavior of 5G wireless data transmissions. In this paper, a two-state Markov-based 5G error model is investigated and developed to model the statistical characteristics of the underlying error process in the 5G network. The underlying 5G error process was obtained from our 5G wireless simulation, which was implemented based on three different kinds of modulation methods, including QPSK, 16QAM, and 64QAM, and was employed using the LDPC and TURBO coding methods. By comparing the burst or gap error statistics of the reference error sequences from the 5G wireless simulations and those of the generated error sequences from the two-state Markov error model, we show that the error behaviors of the coded OFDM 5G simulations can be adequately modeled by using the two-state Markov error model. Our proposed two-state Markov-based wireless error model can help to provide a more thorough understanding of the error process in 5G wireless communications and to evaluate the error control strategies with less computational complexity and shorter simulation times. INDEX TERMS 5G, burst error statistics, two-state Markov model, wireless error model.

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Section: Related Workmentioning

confidence: 99%

“…To reduce OFDM errors, such as subcarrier losses, large PAPRs, data symbol losses, intersymbol interference (ISI), etc., channel coding methods become a major solution in this research area. Turbo-code, LDPC code and convolutional code are significant coding methods in the existing studies [20]- [23].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis of Error Process in 5G Wireless Communication Using Two-State Markov Chain

Myint

Sato

2019

IEEE Access

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“…Channel coding becomes an important player to reduce the errors introduced by a random channel. Low-density parity-check (LDPC), Turbo and convolutional codes are major candidates [2].…”

Section: Introductionmentioning

confidence: 99%

Rank-one Detector for Kronecker-Structured Constant Modulus Constellations

Fazal-E-Asim¹,

Almeida²,

Haardt³

et al. 2020

Preprint

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To achieve reliable communication is indispensable for the high quality of service required by 5G. We propose a novel decoding strategy for constant modulus signals which is useful to provide low bit error ratios (BERs) in the low energy per bit to noise power spectral density ratio (Eb/No) regime with efficient computational complexity. The proposed strategy enjoys the benefit of exploiting the transmission of symbols as Kronecker products at the transmitter side. The proposed Kronecker-RoD (rank-one detector) is compared with convolutional codes with hard and soft Viterbi decoding. We observe that the Kronecker-RoD outperforms the latter in BER performance and has an efficient implementation complexity.

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“…One of the promising multicarrier modulation schemes to fulfill the high data rate requirement is Orthogonal Frequency Division Multiplexing (OFDM) [1]. OFDM is an efficient, high data rate, having advantages of high spectrum efficiency, simple and efficient implementation by using the Fast Fourier Transform (FFT), mitigation of Inter-Symbol Interference (ISI) by inserting a Cyclic Prefix (CP) and robustness to frequency selective fading channels transmission technique for wireless communication [2,3].…”

Section: Introductionmentioning

confidence: 99%