Self-adapting Cyclic Delay Diversity System

被引：0

作者：

Zheng, Aoyang ^{[1
]}

Wang, Yafeng ^{[1
]}

Yang, Dacheng ^{[1
]}

Xiang, Wei ^{[2
]}

机构：

[1] Beijing Univ Posts & Telecommun, Wireless Theories & Technol WT&T Lab, Beijing 100088, Peoples R China

[2] Univ So Queensland, Fac Engn & Surveying, Toowoomba, Qld 4350, Australia

来源：

ROUGH SETS AND KNOWLEDGE TECHNOLOGY, PROCEEDINGS | 2009年 / 5589卷

关键词：

Cyclic Delay Diversity (CDD); orthogonal frequency-division multiplexing (OFDM); DFT-Spread-OFDM (DFT-S-OFDM); self-adapting; transmit diversity;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Cyclic Delay Diversity (CDD) is a simple and efficient space-time diversity technique. It can be used in OFDM and DFT-Spread-OFDM. The traditional CDD has low complexity and system overhead, however, also has some limitations on performance and is sensitive to propagation environment. In this paper, two improved CDD scheme including open-loop and close-loop strategies for uplink and downlink of EUTRA LTE are introduced. Compared with the conventional method, the new schemes call obtain higher performance and less sensitivity to environment.

引用

页码：547 / +

页数：3

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