TY - GEN
T1 - Adaptive Aggregated Multi-Process Transmission for LEO Satellites Integrated with 5G
AU - Xia, Fanghao
AU - Chen, Dechao
AU - Huang, Jingxuan
AU - Qin, Zijun
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - The integration of 5G new radio (NR) and low earth orbit (LEO) satellite communication is a new trend for next-generation non-terrestrial networks. However, with limited satellite resources and long propagation delay, the communication performance is seriously degraded. Inspired by the enhancement on the HARQ process number and aggregated transmission, in this paper, we introduce an adaptive HARQ scheme for LEO satellite communication systems to improve throughput with relatively low delay. We first study the effect of multi-process HARQ and aggregated transmission. Subsequently, a multi-process transmission scheme is designed, which adjusts the aggregation configuration adaptively according to the block error rate (BLER). Therein, the number of HARQ processes is determined by subcarrier spacing and signal propagation delay. Simulation results show that the proposed adaptive HARQ scheme achieves higher throughput and lower delay compared to traditional HARQ schemes.
AB - The integration of 5G new radio (NR) and low earth orbit (LEO) satellite communication is a new trend for next-generation non-terrestrial networks. However, with limited satellite resources and long propagation delay, the communication performance is seriously degraded. Inspired by the enhancement on the HARQ process number and aggregated transmission, in this paper, we introduce an adaptive HARQ scheme for LEO satellite communication systems to improve throughput with relatively low delay. We first study the effect of multi-process HARQ and aggregated transmission. Subsequently, a multi-process transmission scheme is designed, which adjusts the aggregation configuration adaptively according to the block error rate (BLER). Therein, the number of HARQ processes is determined by subcarrier spacing and signal propagation delay. Simulation results show that the proposed adaptive HARQ scheme achieves higher throughput and lower delay compared to traditional HARQ schemes.
KW - 5G-NR
KW - HARQ
KW - LEO satellite communications
KW - adaptive slot aggregation
UR - http://www.scopus.com/inward/record.url?scp=85141180362&partnerID=8YFLogxK
U2 - 10.1109/ICCCWorkshops55477.2022.9896645
DO - 10.1109/ICCCWorkshops55477.2022.9896645
M3 - Conference contribution
AN - SCOPUS:85141180362
T3 - 2022 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2022
SP - 353
EP - 358
BT - 2022 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2022
Y2 - 11 August 2022 through 13 August 2022
ER -