Optimized Higher-Order Polarization Weight Incremental Selective Decoding and Forwarding in Cooperative Satellite Sensor Networks
Optimized Higher-Order Polarization Weight Incremental Selective Decoding and Forwarding in Cooperative Satellite Sensor Networks
复制标题
协作卫星传感器网络中优化的高阶极化权重增量选择性解码与转发
DOI：
10.1109/jsen.2022.3233410
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发表时间：
2023-02
影响因子：
4.3
通讯作者：
Bin Jiang;Xiaowei Wu;J. Bao;Chao Liu;Xianghong Tang
中科院分区：
文献类型：
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作者：
Bin Jiang;Xiaowei Wu;J. Bao;Chao Liu;Xianghong Tang
针对卫星传感器网络(SSN)中的协作传输，提出了一种优化的高阶极化加权(HPW)增量式选择性译码转发(ISDF)方案。首先，设计了一种在编码中子信道功率分配的HPW方法，以增强系统的抗干扰性。其次，在目的地使用协作判决来避免错误传播，以获得更好的中断概率(OP)和误码率(BER)性能。它通过信道状态信息(CSI)在直接传输和协作传输之间交替切换。最后，对HPW编码信息、循环冗余码(CRC)和极子码的四种特殊帧结构进行联合快速逐次消除列表(FSCL)译码，以提高译码效率和误码率性能。最后，将优化后的极化编解码应用到中继系统中，形成一种新的ISDF中继系统，以获得更好的编码效率、误码率和OP性能。仿真结果表明，与现有的ISDF方案相比，该方案在OP为${10}^{-{2}$和误码率为${{10}^{-{6}$时分别获得了约0.8和1分贝的性能提升。因此，协作方案具有高效的译码和协作能力，是SSNS中一种很有前途的候选中继方案。
An optimized higher-order polarization weight (HPW) incremental selective decoding and forwarding (ISDF) scheme is proposed for cooperative transmissions in satellite sensor networks (SSNs). First, an HPW method is designed with subchannel power allocation in encoding to enhance the antiinterference. Second, a cooperative decision in the destination is used to avoid error propagation for better outage probability (OP) and bit error rate (BER) performance. It switches between direct and cooperative transmissions alternatively by channel state information (CSI). Finally, the HPW coding information, cyclic redundancy codes (CRCs), and four special frame structures of polar subcodes are jointly fast successive cancellation list (FSCL) decoded to improve efficiency and BER performance. Finally, we apply the optimized polarization encoding and decoding to the relay system to form a new ISDF relay system for better coding efficiency, BER, and OP performance. Simulation results show that the proposed scheme obtains approximately 0.8 and 1 dB performance gains at OP of ${{10}^{-{2}}}$ and BER of ${{10}^{-{6}}}$ , respectively, when compared with those of the current ISDF scheme. Therefore, the cooperative scheme possesses efficient decoding and cooperation, which endows it a promising candidate relay scheme in SSNs.