On the impact of SNR estimation error on adaptive modulation

被引：15
|
作者：
Mohammad, M [1 ]
Buehrer, RM [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, MPRG, Blacksburg, VA 24061 USA
来源：
IEEE COMMUNICATIONS LETTERS | 2005年 / 9卷 / 06期
关键词：
SNR estimation; adaptive modulation; noncentral F-distribution;
D O I：
10.1109/LCOMM.2005.1437347
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter we investigate the impact of Signal-to-Noise Ratio (SNR) estimation on the performance of adaptive modulation. The adaptive modulation technique uses an estimate of the SNR at the receiver to choose a modulation scheme so that a given performance target is met. By adapting the modulation scheme, the link is able to improve the spectral efficiency as compared to static modulation. An analytic expression for the impact of SNR estimation error is derived and it is shown that SNR estimation has minimal impact on the performance.
引用
收藏
页码：490 / 492
页数：3
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