Improved BER Performance of Real-Time DDO-OFDM Systems Using Interleaved Reed–Solomon Codes

Chen, Ming; Xiao, Xin; Li, Xinying; Yu, Jianjun; Huang, Z. Rena; Fan, Li; Chen, Lin

doi:10.1109/lpt.2016.2523268

Cited by 24 publications

(10 citation statements)

References 15 publications

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“…Therefore, a simple multiple-symbols interleaving scheme is employed. The principle of the interleaving scheme can be found in our previous work [24]. The interleaved RS codes are combined into 480-bit data per 3 clock cycles (156.25 MHz) and stored into the third FIFO (FIFO #3).…”

Section: Dmt Transmittermentioning

confidence: 99%

Demonstration of a 2.34 Gbit/s Real-Time Single Silicon-Substrate Blue LED-Based Underwater VLC System

et al. 2020

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We develop a real-time discrete multi-tone (DMT) transceiver based on field programmable gate array (FPGA) chips for a single chip silicon-substrate light-emitting diode (LED) based underwater visible light communication (UVLC). On-chip resource usages are analyzed and discussed. To improve bit error rate (BER) performance, a novel channel estimation technique utilizing hybrid inter-symbol frequency-averaging (Inter-SFA) and intrasymbol frequency-averaging (Intra-SFA) is proposed and investigated. The real-time DMT transceiver is experimentally verified in a silicon substrate blue LED-based UVLC system with a 1.2 m underwater link. By using the enhanced channel estimation, a gross bit rate of 2.34 Gbit/s real-time DMT signal over 1.2 m underwater transmission can be achieved with the BER of 3.5 × 10 −3. What's more, multiple-symbol interleaved Reed-Solomon (RS) codes are employed to further improve BER performance. The real-time measured post-FEC BER of the DMT-UVLC with multiple-symbol interleaved RS (255, 191) codes can be improved by more than six orders of magnitude. As a result, error-free (less than 1 × 10 −9) transmission is observed in our real-time experiment. Furthermore, 1.485 Gbit/s 720p high-definition video underwater transmission is successfully demonstrated. To the best of our knowledge, it is the first time to demonstrate a real-time LED-based UVLC system with DMT modulation beyond Gbit/s.

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Section: Dmt Transmittermentioning

confidence: 99%

Demonstration of a 2.34 Gbit/s Real-Time Single Silicon-Substrate Blue LED-Based Underwater VLC System

et al. 2020

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“…OFDM is an exquisite and productive plan for high information rate transmission in a nonline of-sight or multipath radio climate. [13] The simulation arrangement is made on MATLAB R2019a, in Windows 10 working station. MATLAB R2019a simulation model of 5G(NR) PHY for mMTC node is comprise all the compulsory source obstructs as from the Table-1.…”

Section: G (Nr) Phymentioning

confidence: 99%

Robust Channel Encoding for MMTC Node in 5g (Nr)

Sharma¹,

Pandey²,

Patel³

et al. 2020

IJAR

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The paper is focused on robust channel encoding for Massive machine type communication (mMTC) communication in 5G (NR). The performance evaluation of channel encoding is obtained at 5G New Radio (NR) PHY. The results show that reliable bit error rate (BER) against the poor channel condition or random fluctuated channel applied. Channel encoding algorithm as a forward error correction code (FEC) is applied on packet to packet basis to improve the BER performance against inter symbol interference. The concept of adaptation of code rate is valuable to reduce the payload effect and provide optimum solution between BER and throughput. Adaptive code rate selection is based on impact of earlier transmitted packet bit using feedback indicator.

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“…Hence, in practical applications, bit error rate (BER) will be high without using forward error correction (FEC) techniques and doesn't meet its requirements. So, applying powerful FEC techniques are considered one of the key method to improve the BER performance and receiver sensitivity [14]. So, to achieve the reliability of information transmission in digital communication systems over noisy channels, ECC is considered an essential issue [15].…”

Section: Introductionmentioning

confidence: 99%

“…Where, several ECC have been suggested in 4G such as turbo, LDPC, convolutional, BCH and RS codes [16][17][18][19][20] and in 5G such as LDPC, turbo, polar and convolutional [21] and BCH [22]. In contrast, reed solomon (RS) codes are commonly used in wireless and optical systems owing to its strong capability in correcting both of random and burst errors [14]. Where, using RS codes (hard-decision decoding (HDD)) which characterized by low decoding complexity in downlink LTE system contributed by improving system performance.…”

Section: Introductionmentioning

confidence: 99%

UFMC system performance improvement using RS codes for 5G communication system

Hussain

Audah

2020

TELKOMNIKA

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Fifth generation (5G) mobile communication is expected to be deployed in several countries by 2020. Where, the data consumptions are expected to be increased to 30% thus, it cannot be supported by the present technologies 3G and 4G. In contrast, looking for new alternative modulation techniques of orthogonal frequency division modulation (OFDM) system which is suffering from high peak to average power ratio (PAPR) and out of band (OOB) side lobes are needed to use in 5G communication system. Hence, universal filtered multi-carrier (UFMC) is considered as alternative waveform to overcome of OFDM disadvantages. In communication systems, channel coding is considered vital part, where error correction codes (ECC) are used to detect and correct the errors which is occurring in channel noise. In this paper, RS codes are suggested with UFMC system to achieve the reliability of information transmission over noisy channels. The results showed that although, the values of PAPR levels for using RS codes in UFMC increased to 8.8653dB against 6.9735 dB for OFDM system. However, there are significant improvements in BER performance owing to use RS codes against uncoded-UFMC system. Furthermore, the values of OOB in UFMC system was lower than OFDM system.

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Improved BER Performance of Real-Time DDO-OFDM Systems Using Interleaved Reed–Solomon Codes

Cited by 24 publications

References 15 publications

Demonstration of a 2.34 Gbit/s Real-Time Single Silicon-Substrate Blue LED-Based Underwater VLC System

Demonstration of a 2.34 Gbit/s Real-Time Single Silicon-Substrate Blue LED-Based Underwater VLC System

Robust Channel Encoding for MMTC Node in 5g (Nr)

UFMC system performance improvement using RS codes for 5G communication system

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