상세정보
학술지
An Applicable Repeated Transmission for Low Latency and Reliable Services
- 발행일
- 202008
- 출처
- IEEE Transactions on Vehicular Technology, v.69 no.8, pp.8468-8482
- ISSN
- 0018-9545
- 출판사
- IEEE
- 협약과제
- 19MH1400, (초저지연-2세부) 5G URLLC 서비스를 위한 초저지연 무선 접속 기술 개발, 김태중
- 초록
- For the fast access with high reliability, a single grant allows a transmitter to transmit multiple redundant packets with new redundancy information in the time domain without waiting for feedback from a receiver. However, entire redundant packets shall be retransmitted in response to a negative acknowledgment of those redundant packets, which increases the service latency. To reduce a long HARQ RTT due to a number of redundant packets, we propose packet-by-packet parallel processing that achieves lower latency by alleviating the long HARQ RTT of repeated transmission. We also provide a model and analysis for repeated transmission functionality, in terms of the wireless transmission latency with packet-by-packet processing. Numerical analysis and simulation in various network environments show that the proposed algorithm achieves lower latency without trading reliability off.
- KSP 제안 키워드
- Analysis and simulation, High Reliability, Low latency, Numerical Analysis, Parallel Processing, Redundant packets, Transmission latency, Wireless transmission, packet processing, time-domain