Novel Optimized Cross-Layer Design with Maximum Weighted Capacity Based Resource Allocation for AMC/HARQ Wireless Networks

• 作者: Hesham M. El-Badawy Reham A. El-Mayet Salwa H. Elramly
• 来源期刊: 无线工程与技术(英文)
• 学科: 工学
• 关键词: AMC CROSS-LAYER Design HARQ Nakagami-m FADING Channel QoS
• 年，卷（期）: 2013,（2）
• 页码范围: 77-86
• 页数: 10页
• 分类号: TN92

摘要

To provide quality-of service (QoS) guarantees for heterogeneous applications, most recent wireless communications technologies and standards combine the error-correcting capability of hybrid automatic repeat request (HARQ) schemes at the data link layer (DLL) with the adaptation ability of the adaptive modulation and coding (AMC) modes at the physical layer (PHY) layer. This paper aims to investigate the aggregated system capacity as well as the breakdown of this capacity for different ACM modes in each HARQ scheme. This investigation was done by using maximum weighted capacity (MWC) resource allocation at the PHY layer in conjunction with a novel packet error rate (PER)-based scheduling at the medium access control (MAC) layer. As a result, the dominant AMC mode corresponding to channel SNR was available.