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Issue:
Introduction to OFDMA in LTE
Author(s):
LANG Weimin
,
LI Jianjun
,
HU Donghua
,
GAO Yonghong
Pages:
25
-
28
Year:
2010
Issue:
2
Journal:
Data Communications
Keyword:
长期演进(LTE)
;
正交频分复用多址(OFDMA)
;
快速傅立叶变换(FFT)
;
WCDMA
;
Abstract:
LTE多址技术与WCDMA中的多址技术不同.在LTE系统中,下行链路多址技术建立在正交频分复用多址(OFDMA)的基础上,而上行链路多址技术则是基于单载波频分多址(SC-FDMA)技术的.文章分析了OFDMA实现过程,描述了OFDMA发射机和接收机结构与原理,讨论了OFDMA的优势与挑战.
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