Hidden pilot schemes for MIMO-OFDM system다중 입출력 직교 주파수 분할 다중화 시스템을 위한 은닉 학습 신호 기법
MIMO-OFDM system usually use pilot sequences for identifying the channel. However, the pilot signals occupy transmission bandwidth which would otherwise be available for transmission of the signal. In this thesis, we propose a hidden pilot schemes to apply for MIMO-OFDM systems, so called as affine precoded MIMO-OFDM (AP-MIMO-OFDM). We showed 4 performance criteria in the view point of channel estimation, frequency diversity and PAPR to design affine precoder for MIMO-OFDM. Based on 4 design criteria, we will explaine that designing of affine precoder can be done by using polyphase sequence. Through simulations, we investigated the characteristics of affine precoded MIMO-OFDM scheme and showed its improved performance over conventional MIMO-OFDM in channel estimation, signal detection, bandwidth efficiency and PAPR characteristics.
- Advisors
- Park, Dong-Joresearcher; 박동조researcher
- Description
- 한국과학기술원 : 전기및전자공학전공,
- Publisher
- 한국과학기술원
- Issue Date
- 2007
- Identifier
- 264948/325007 / 020053077
- Language
- eng
- Description
학위논문(석사) - 한국과학기술원 : 전기및전자공학전공, 2007.2, [ vii, [80] p. ]
- Keywords
Polyphase Sequences; Hidden Pilot; Affine Precoder; (Muliple Input Multiple Output - Orthogonal Frequency Division Multiplexing)MIMO-OFDM; Semi-blind Channel Estimation; 준맹목 채널 추정; 다상 수열; 은닉 학습 신호; 어파인 전부호화기; 다중 입출력 직교 주파수 분할 다중화
- Appears in Collection
- EE-Theses_Master(석사논문)
- Files in This Item
- There are no files associated with this item.
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