Adaptive Packet Length and MCS Using Average or Instantaneous SNR

被引：18
作者：
Alnwaimi, Ghassan [1 ]
Boujemaa, Hatem [2 ]
机构：
[1] King Abdulaziz Univ, Jeddah 21589, Saudi Arabia
[2] Univ Carthage, COSIM Lab, SupCom, El Ghazala 2083, Tunisia
来源：
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2018年 / 67卷 / 11期
关键词：
Adaptive modulation and coding; optimal packet length; instantaneous SNR (ISNR); average SNR (ASNR); FLAT-FADING CHANNELS; CODED MODULATION; WIRELESS LINKS; ARQ;
D O I：
10.1109/TVT.2018.2865798
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we propose a new adaptive link layer protocol that consists in adapting packet length and Modulation and Coding Scheme (MCS) to Average Signal to Noise Ratio or instantaneous SNR (ISNR). Adaptive MCS and adaptive packet length offer higher throughput than adaptive MCS and fixed packet length as considered in previous studies. The best strategy is to adapt the MCS and packet length to ISNR. Adaptive MCS and adaptive packet length offer 1-2 dB gains with respect to adaptive MCS and fixed packet length. The proposed adaptive link layer protocol has been implemented by quantizing the SNR on the feedback channel over four hits and yielding close results to unquantized SNR.
引用
收藏
页码：10519 / 10527
页数：9
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