Scholarlink

<p>Orthogonal Frequency Division Multiplexing (OFDM) is regarded as an effective multi-carrier modulation scheme which inspires several existing and perhaps imminent high-speed wireless communication systems. Future broadband SatCom (satellite communication) system needs higher throughput for data transmission, that sounds for processing at high frequency bands. For meeting the demands of imminent wireless communication system, an improved MIMO-OFDM approach for effectual data transmission is proposed. The key intent of this proposed model is to present an effective data transmission scheme in the standard of DVB-RCS2 satellite link system using optimization approach-based modulation scheme for the real-time application. Initially, in the gateway transmitter (Tx) side, the input sparsity of Channel state information (CSI) is considered and is fed to Linear regularization learning module (LR-LM). A cascaded LDPC-BCH encoder is employed for encoding regularized output followed by modulation using 64-APSK modulator. Afterwards, the pre-distortion elimination and amplification through High power amplifier (HPA) is carried. The 64-APSK modulator is optimized by means of Wind driven optimization (WDO) algorithm. The information bits are transmitted over DVB-RCS2 satellite channel. The data is then received at the receiver (Rx) side to deliver final output bit streams. The performance is estimated in terms of attained fitness function, sparse recovery w.r.t relative error and time; Bit error rate (BER) vs. signal to noise ratio (SNR), BER vs. ROF (roll-off factors), spectral efficiency vs. ROF, and Normalized mean square error (NMSE) loss.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

DVB-RCS2 Satellite Link Optimization for Efficient Data Transmission Using Cascaded Coding Approach in MIMO-OFDM System

  • 期刊论文

  • 发表日期：

    2025年10月21日

查看全文
  • K. Balamurugan,
  • N. Janakiraman

摘要

Orthogonal Frequency Division Multiplexing (OFDM) is regarded as an effective multi-carrier modulation scheme which inspires several existing and perhaps imminent high-speed wireless communication systems. Future broadband SatCom (satellite communication) system needs higher throughput for data transmission, that sounds for processing at high frequency bands. For meeting the demands of imminent wireless communication system, an improved MIMO-OFDM approach for effectual data transmission is proposed. The key intent of this proposed model is to present an effective data transmission scheme in the standard of DVB-RCS2 satellite link system using optimization approach-based modulation scheme for the real-time application. Initially, in the gateway transmitter (Tx) side, the input sparsity of Channel state information (CSI) is considered and is fed to Linear regularization learning module (LR-LM). A cascaded LDPC-BCH encoder is employed for encoding regularized output followed by modulation using 64-APSK modulator. Afterwards, the pre-distortion elimination and amplification through High power amplifier (HPA) is carried. The 64-APSK modulator is optimized by means of Wind driven optimization (WDO) algorithm. The information bits are transmitted over DVB-RCS2 satellite channel. The data is then received at the receiver (Rx) side to deliver final output bit streams. The performance is estimated in terms of attained fitness function, sparse recovery w.r.t relative error and time; Bit error rate (BER) vs. signal to noise ratio (SNR), BER vs. ROF (roll-off factors), spectral efficiency vs. ROF, and Normalized mean square error (NMSE) loss.