A New Dynamic Transmission-Mode Selection Scheme for AMC/HARQ-Based Wireless Networks

作者：Ma, Xiaohui; Li, Guobing^*; Zhang, Guomei

来源：KSII Transactions on Internet and Information Systems, 2017, 11(11): 5360-5376.

DOI：10.3837/tiis.2017.11.010

• Wireless networks
• AMC
• HARQ
• Cross-layer design
• MIMO

In this paper, we study the cross-layer design for the AMC/HARQ-based wireless networks, and propose a new dynamic transmission-mode selection scheme to improve system spectrum efficiency. In the proposed scheme, dynamic thresholds for transmission-mode selection in each packet transmission and retransmission are jointly designed under the constraint of the overall packet error rate. Comparing with the existing schemes, the proposed scheme is inclined to apply higher modulation order at the first several (re) transmissions, which corresponds to higher-rate transmission modes thus higher average system spectrum efficiency. We also extend the cross-layer design to MIMO (Multi-input Multi-output) communication scenarios. Numerical results show that the proposed new dynamic transmission-mode selection scheme generally achieves higher average spectrum efficiency than the conventional and existing cross-layer design.

• 出版日期2017-11-30
• 单位西安测绘研究所; 中国人民解放军信息工程大学; 西安交通大学