Firstly, the OTFS-IM underwater acoustic communication system is introduced, which introduces index modulation into the Delay–Doppler (DD) domain to make the OTFS system have stronger anti-Delay–Doppler capability. In contrast, since there is index sequence redundancy in a specific index...
这是一一宝贝怀孕的第50天,我现在每天都很紧张也很小心翼翼,季冉宝贝也天天问我一一的情况, 她也很紧张,嘱咐我要照顾好一一,她给一一织了很多的小围脖,都很精致可爱。现在一一的肚子越来越大了,体重也日益上升,本来我还挺开心她可以生好多的小宝宝,但我现在一点也不希望她生小宝宝了,她以前每天都会窝在猫...
Then, the performance gain of the Hamming distance optimization model in the OTFS-IM underwater acoustic communication system under two demodulation algorithms is analyzed, and the performance gain of the Hamming distance optimization model is verified. The channel parameters used in the simulations are...