Frequency offset estimation and modified nulling method in V-BLAST = V-BLAST에서 주파수 오차 측정 및 수정된 무효화 기법

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In this thesis, we consider two problems in multiple antenna system. First, we propose the data-aided frequency offset estimator in multiple transmit and receive antenna system which operates in frequency flat fading channel. The estimator is based on maximum likelihood criterion and does not require channel information. By adding a constraint that the training sequence is represented as the repetition of Hadamard code, we make the complexity of estimator much lower. Secondly, we consider the effect of channel estimation error and propose the modified V-BLAST (Vertical Bell Laboratories Layered Space Time) detection algorithm. In the proposed algorithm, we replace the nulling vector of general V-BLAST with the new nulling vector which reduces the effect of channel errors. With simulations, we test the performances of the proposed algorithms.
Advisors
Chun, Joo-Hwanresearcher전주환researcher
Description
한국과학기술원 : 전기및전자공학전공,
Publisher
한국과학기술원
Issue Date
2002
Identifier
174035/325007 / 020003354
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학전공, 2002.2, [ iii, 54 p. ]

Keywords

channel error; V-BLAST; frequency offset; 채널불확정성; 주파수오차; 다중안테나

URI
http://hdl.handle.net/10203/37505
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=174035&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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