CDMA multi-user receiver composed of de-correlating detectors with reduced noise enhancement effect

被引：0

作者：

Tomita, M ^{[1
]}

Inokura, H ^{[1
]}

Otake, K ^{[1
]}

Kuroyanagi, N ^{[1
]}

Ozawa, S ^{[1
]}

Matsufuji, S ^{[1
]}

机构：

[1] Tokyo Univ Technol, Tokyo, Japan

来源：

MILCOM 2003 - 2003 IEEE MILITARY COMMUNICATIONS CONFERENCE, VOLS 1 AND 2 | 2003年

关键词：

CDMA; de-correlating detector; multi-user detection; pilot assisted detector; noise enhancement effect;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A de-correlating detector (DD) is a powerful device that can eliminate interference in CDMA multi-user detection. However, it shows considerable noise enhancement effect in the process of solving the decorrelating matrix (DM) equation. A new DD is proposed whose DM consists of pilot response itself. Additional techniques such as using spreading sequences with guards and inserting dummy pilot responses into DM are adopted. This DD indicates a function that significantly reduces the noise amplification, resulting in remarkable performance improvement.

引用

页码：341 / 346

页数：6

共 12 条

[1]

DUELHALLEN A, 1995, COMMUNICATION

[2]

INOKURA H, CDMA MIMO SYSTEM MUL

[3]

KANG JW, 2000, EXTENDED 1 SHOT DECO

[4] JOINT DECORRELATING MULTIUSER DETECTION AND CHANNEL ESTIMATION IN ASYNCHRONOUS CDMA MOBILE COMMUNICATIONS CHANNELS [J].