High-SNR power offset in multi-antenna Ricean channels

被引：0
|
作者：
Tulino, AM [1 ]
Lozano, A [1 ]
Verdú, S [1 ]
机构：
[1] Univ Naples Federico II, I-80125 Naples, Italy
来源：
ICC 2005: IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5 | 2005年
关键词：
D O I：
暂无
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 the high-SNR regime, the multi-antenna mutual information behaves as an affine function of SNR vertical bar(dB), described by the multiplexing gain, which quantifies the multiplicative increase as function of the number of antennas, and the power offset (zero-order term in dB). The conventional high-SNR analysis that considers only the multiplexing gain is unable to assess the impact of channel features such as the Ricean factor since, irrespective thereof, the multiplexing gain equals the minimum of the number of transmit and receive antennas. The impact of the Ricean factor at high SNR can be conveniently quantified through the corresponding power offset, Which this paper evaluates in closed-form.
引用
收藏
页码：683 / 687
页数：5
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