Meteor burst channel demonstrates special fading characteristics,in which the statistics of channel envelope along the time domain explicitly violate the traditional iid(independent and identically distributed)assumpt...Meteor burst channel demonstrates special fading characteristics,in which the statistics of channel envelope along the time domain explicitly violate the traditional iid(independent and identically distributed)assumption.Because this kind of channel will rapidly disappear after its occurrence.In order to adapt to this particular characteristic of meteor burst channel,a noniid assumption based Gaussian approximation(GA)algorithm is employed to rebuild the state-of-the-art polarization adjusted convolutional(PAC)code.Then,the polarization effect under non-iid condition is analyzed and an interleaving method is employed to enhance the polarization efficiency.Compared with the widely used low density parity check(LDPC)codes and turbo product codes(TPC),our interleaved PAC codes are capable of decreasing the BLER level by one order of magnitude.展开更多
基金supported by Sichuan Science and Technology Program under Grant 2024NSFSC0472in part by the National Natural Science Foundation of China under Grant 62571457。
摘要Meteor burst channel demonstrates special fading characteristics,in which the statistics of channel envelope along the time domain explicitly violate the traditional iid(independent and identically distributed)assumption.Because this kind of channel will rapidly disappear after its occurrence.In order to adapt to this particular characteristic of meteor burst channel,a noniid assumption based Gaussian approximation(GA)algorithm is employed to rebuild the state-of-the-art polarization adjusted convolutional(PAC)code.Then,the polarization effect under non-iid condition is analyzed and an interleaving method is employed to enhance the polarization efficiency.Compared with the widely used low density parity check(LDPC)codes and turbo product codes(TPC),our interleaved PAC codes are capable of decreasing the BLER level by one order of magnitude.