The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
C-RAN(클라우드 무선 액세스 네트워크) 아키텍처에서 HARQ(하이브리드 자동 반복 요청) 프로토콜은 BBU(기저대역 장치) 풀과 RRH(원격 무선 헤드) 간의 대기 시간에 엄격한 제한을 적용하는데, 이는 주요 과제입니다. C-RAN 채택. 이 서한에서 우리는 HARQ의 성능을 향상시켜 5G 셀룰러 시스템에서 초저 지연 시간을 달성하기 위해 멀티캐스트 프런트홀을 갖춘 C-RAN에서 공동 에지 캐싱 및 네트워크 코딩 전략(ENC)을 제안합니다. 최적의 캐싱 시간을 얻기 위해 캐싱 효용을 극대화하는 최적화 문제로 엣지 캐싱 설계를 공식화합니다. 그런 다음 대기 시간 제약이 서로 다른 실시간 데이터 흐름에 대해 NCG(네트워크 코딩 그룹)를 기반으로 한 스케줄링 정책을 제안하여 코딩 기회를 최대화하고 멀티캐스트 프론트홀 전송의 전체 대기 시간 성능을 향상시킵니다. NS-3 기반의 시뮬레이션 실험을 통해 ENC의 성능을 평가한다. 수치 결과는 ENC가 배송 지연을 효율적으로 줄일 수 있음을 보여줍니다.
Qinglong LIU
Zhongshan Institute
Chongfu ZHANG
the University of Electronic Science and Technology of China
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
부
Qinglong LIU, Chongfu ZHANG, "Achieving Ultra-Low Latency for Network Coding-Aware Multicast Fronthaul Transmission in Cache-Enabled C-RANs" in IEICE TRANSACTIONS on Fundamentals,
vol. E104-A, no. 12, pp. 1723-1727, December 2021, doi: 10.1587/transfun.2021EAL2010.
Abstract: In cloud radio access networks (C-RANs) architecture, the Hybrid Automatic Repeat Request (HARQ) protocol imposes a strict limit on the latency between the baseband unit (BBU) pool and the remote radio head (RRH), which is a key challenge in the adoption of C-RANs. In this letter, we propose a joint edge caching and network coding strategy (ENC) in the C-RANs with multicast fronthaul to improve the performance of HARQ and thus achieve ultra-low latency in 5G cellular systems. We formulate the edge caching design as an optimization problem for maximizing caching utility so as to obtain the optimal caching time. Then, for real-time data flows with different latency constraints, we propose a scheduling policy based on network coding group (NCG) to maximize coding opportunities and thus improve the overall latency performance of multicast fronthaul transmission. We evaluate the performance of ENC by conducting simulation experiments based on NS-3. Numerical results show that ENC can efficiently reduce the delivery delay.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2021EAL2010/_p
부
@ARTICLE{e104-a_12_1723,
author={Qinglong LIU, Chongfu ZHANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Achieving Ultra-Low Latency for Network Coding-Aware Multicast Fronthaul Transmission in Cache-Enabled C-RANs},
year={2021},
volume={E104-A},
number={12},
pages={1723-1727},
abstract={In cloud radio access networks (C-RANs) architecture, the Hybrid Automatic Repeat Request (HARQ) protocol imposes a strict limit on the latency between the baseband unit (BBU) pool and the remote radio head (RRH), which is a key challenge in the adoption of C-RANs. In this letter, we propose a joint edge caching and network coding strategy (ENC) in the C-RANs with multicast fronthaul to improve the performance of HARQ and thus achieve ultra-low latency in 5G cellular systems. We formulate the edge caching design as an optimization problem for maximizing caching utility so as to obtain the optimal caching time. Then, for real-time data flows with different latency constraints, we propose a scheduling policy based on network coding group (NCG) to maximize coding opportunities and thus improve the overall latency performance of multicast fronthaul transmission. We evaluate the performance of ENC by conducting simulation experiments based on NS-3. Numerical results show that ENC can efficiently reduce the delivery delay.},
keywords={},
doi={10.1587/transfun.2021EAL2010},
ISSN={1745-1337},
month={December},}
부
TY - JOUR
TI - Achieving Ultra-Low Latency for Network Coding-Aware Multicast Fronthaul Transmission in Cache-Enabled C-RANs
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1723
EP - 1727
AU - Qinglong LIU
AU - Chongfu ZHANG
PY - 2021
DO - 10.1587/transfun.2021EAL2010
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E104-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2021
AB - In cloud radio access networks (C-RANs) architecture, the Hybrid Automatic Repeat Request (HARQ) protocol imposes a strict limit on the latency between the baseband unit (BBU) pool and the remote radio head (RRH), which is a key challenge in the adoption of C-RANs. In this letter, we propose a joint edge caching and network coding strategy (ENC) in the C-RANs with multicast fronthaul to improve the performance of HARQ and thus achieve ultra-low latency in 5G cellular systems. We formulate the edge caching design as an optimization problem for maximizing caching utility so as to obtain the optimal caching time. Then, for real-time data flows with different latency constraints, we propose a scheduling policy based on network coding group (NCG) to maximize coding opportunities and thus improve the overall latency performance of multicast fronthaul transmission. We evaluate the performance of ENC by conducting simulation experiments based on NS-3. Numerical results show that ENC can efficiently reduce the delivery delay.
ER -