Two-Way Training: Optimal Power Allocation for Pilot and Data Transmission

被引：22
|
作者：
Zhou, Xiangyun [1 ,2 ]
Lamahewa, Tharaka A. [1 ,2 ]
Sadeghi, Parastoo [1 ,2 ]
Durrani, Salman [1 ]
机构：
[1] Australian Natl Univ, Coll Engn & Comp Sci, Sch Engn, Canberra, ACT 0200, Australia
[2] Australian Natl Univ, Res Sch Informat Sci & Engn, Canberra, ACT 0200, Australia
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2010年 / 9卷 / 02期
基金：
澳大利亚研究理事会;
关键词：
Two-way training; channel estimation; power allocation; symbol error rate; MIMO;
D O I：
10.1109/TWC.2010.02.090641
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 letter, we consider multiple-input singleoutput (MISO) systems with two-way training based transmission. We focus on the long-term system performance and study the optimal power allocation between reverse training, forward training and data transmission. We derive closed-form solutions for the optimal power allocation using high signal-to-noise ratio (SNR) approximations, and show that they achieve near optimal performance in terms of symbol error rate (SER) for different modulation schemes over a wide range of SNR values.
引用
收藏
页码：564 / 569
页数：6
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