Digital Compensation of Tx/Rx I/Q Imbalance in TD-SCDMA Systems

被引：0
|
作者：
Narasimhan, Balachander
Al-Dhahir, Naofal
Kocic, Marko
Yan, Aiguo
Zvonar, Zoran
机构：
来源：
2011 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE (GLOBECOM 2011) | 2011年
关键词：
OFDM SYSTEMS; IQ IMBALANCE;
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：
TD-SCDMA (Time Division-Synchronous CDMA) systems show performance degradation due to I/Q imbalance resulting from direct-conversion transmitters and receivers. In overall system analysis, it is important to consider both transmitter and receiver I/Q imbalances to account for low cost base stations (BS's) such as femtocells. Two approaches are considered in this paper. The first one is a purely time-domain approach based on widely linear minimum mean square error estimation (WL-MMSE). The second one is a frequency-domain approach with reduced computational complexity. Simulation studies are performed and comparison results presented.
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页数：5
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