Cross-layer Resource Allocation on Broadband Power Line Based on Novel QoS-priority Scheduling Function in MAC Layer

• 作者: Duan Ruichao Huang Qian Lu Jun Xiong Chen
• 来源期刊: 通讯与网络(英文)
• 学科: 工学
• 关键词: BROADBAND Power LINE Communication OFDM CROSS-LAYER RESOURCE ALLOCATION SCHEDULING
• 年，卷（期）: 2013,（3）
• 页码范围: 69-73
• 页数: 5页
• 分类号: TN92

摘要

Traditional resource allocation algorithms use the hierarchical system, which does not apply to the bad channel environment in broadband power line communication system. Introducing the idea of cross-layer can improve the utilization of resources and ensure the QoS of services. This paper proposes a cross-layer resource allocation on broadband power line based on QoS priority scheduling function on MAC layer. Firstly, the algorithm considers both of real-time users’ requirements for delay and non-real-time users’ requirements for queue length. And then user priority function is proposed. Then each user’s scheduled packets number is calculated according to its priority function. The scheduling sequences are based on the utility function. In physical layer, according to the scheduled packets, the algorithm allocates physical resources for packets. The simulation results show that the proposed algorithm give consideration to both latency and throughput of the system with improving users’ QoS.