Constrained least square pre-distortion scheme for multiuser ultra-wideband

被引：2
|
作者：
Angelico, B. A. [1 ]
Jeszensky, P. J. E. [2 ]
Abrao, T. [3 ]
机构：
[1] Fed Univ Technol Parana UTFPR, Cornelio Procopio, PR USA
[2] Univ Sao Paulo, Escola Politecn, Dept Telecomm & Control Engn, Sao Paulo, Brazil
[3] Univ Estadual Londrina, Dept Elect Engn, Londrina, PR, Brazil
来源：
IET COMMUNICATIONS | 2012年 / 6卷 / 10期
关键词：
TIME-REVERSAL; MISO;
D O I：
10.1049/iet-com.2011.0012
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：
The study proposes a constrained least square (CLS) pre-distortion scheme for multiple-input single-output (MISO) multiple access ultra-wideband (UWB) systems. In such a scheme, a simple objective function is defined, which can be efficiently solved by a gradient-based algorithm. For the performance evaluation, scenarios CM1 and CM3 of the IEEE 802.15.3a channel model are considered. Results show that the CLS algorithm has a fast convergence and a good trade-off between intersymbol interference (ISI) and multiple access interference (MAI) reduction and signal-to-noise ratio (SNR) preservation, performing better than time-reversal (TR) pre-distortion.
引用
收藏
页码：1334 / 1339
页数：6
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