通信学报2025，Vol.46Issue(z1)：34-46,13.DOI:10.11959/j.issn.1000-436x.2025230
基于C-WAN架构的多接入点下行协同传输与MAC层建模研究
Downlink cooperative transmission and MAC layer modeling for multi-access point based on C-WAN architecture
摘要
Abstract
To enhance system capacity in FTTR scenarios with multi-AP coordination,a downlink cooperative transmis-sion scheme based on a centralized wireless optical access network(C-WAN)was proposed.Under the global perception and unified scheduling of a central controller,the scheme integrated the EDCA mechanism with coordinated spatial reuse(C-SR)to achieve TDMA slot allocation and fine-grained power control.The joint scheduling and power allocation prob-lem was solved near-optimally using a low-complexity method.To evaluate the scheme's performance,a MAC-layer model consistent with the cooperative mechanism was constructed.Simulation results show that,compared with the RTS/CTS scheme,the proposed method significantly improves throughput across different terminal distributions and deploy-ment densities,with particularly notable advantages in low-interference environments.Although delays increase under high-density conditions,the capacity advantage remains evident.关键词
集中式无线光接入/协同空间复用/图模型/最大权重团/马尔可夫链Key words
centralized wireless optical access/coordinated spatial reuse/graphical models/maximum weight clique/Markov chain分类
信息技术与安全科学引用本文复制引用
曾宸,徐鹏举,刘奕晨,刘应状..基于C-WAN架构的多接入点下行协同传输与MAC层建模研究[J].通信学报,2025,46(z1):34-46,13.基金项目
华为技术有限公司基金资助项目(No.TP20250612004)Huawei Technologies Co.,Ltd.Fund(No.TP20250612004) （No.TP20250612004）
