Research on the suppression of GMR interference in WCDMA satellite system

被引：0

作者：

Qian, Jinxi ^{[1
,2
]}

Liu, Naijin ^{[2
]}

Yang, Jinghui ^{[3
]}

Wu, Qiong ^{[4
]}

Xin, Xiangjun ^{[1
]}

机构：

[1] School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, China

[2] Institute of Telecommunication Satellites, China Academy of Space Technology, Beijing, China

[3] College of Information and Communication Engineering, Harbin Engineering University, Harbin, China

[4] Harbin Branch, China Mobile, Harbin, China

来源：

Journal of Information and Computational Science | 2015年 / 12卷 / 04期

关键词：

Mobile telecommunication systems - Satellite communication systems - Codes (symbols) - Multiple access interference - Code division multiple access - Communication satellites - Signal interference;

D O I：

10.12733/jics20105509

中图分类号：

学科分类号：

摘要：

As the satellite and space spectrum resource are constrained, most time, the WCDMA (Wideband Code Division Multiple Access) satellite system and the GMR (GEO-mobile radio interface) system have to transport information in the same frequency band. In this case the main interference is the narrowband interference which comes from the GMR system. The paper researched the method of the narrowband interference suppression in the WCDMA satellite system. Furthermore, because the WCDMA system also contains a multi-access interference, the paper proposed a code-aided interference suppression technology, which can suppress both the MAI (Multiple Address Interference) and NBI (Narrow Band Interference), into the WCDMA satellite system to eliminate the GMR interference. Theoretic analysis and system simulation show that, the GMR signal interference can effectively be inhibited with a more mature and better MMSE (Minimum Mean Square Error) and ZF (Zero-force) code-aided technology, the co-channel transmission performance of the WCDMA systems can be protected well. ©, 2015, Binary Information Press

引用

页码：1667 / 1674

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