Truncated adaptive transmission and difference threshold test for wireless communication systems = 무선 통신 계통에 알맞은 차단 적응 전송 기법과 차분 문턱값 검정

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For future mobile communication systems, there exist demands for such various requirements as multimedia traffic and high rate data transmission. To accommodate these demands, we propose a truncated adaptive transmission scheme for the transmitter and a difference threshold test (DTT) for the receiver of the wireless communication systems. Firstly, a truncated adaptive transmission scheme for the hybrid multicarrier CDMA/FDM system is considered in forward link. In the proposed scheme, a data substream is transmitted over the subchannels of which the channel gains are greater than a given threshold, based on the feedback information from the mobile station. We analyze the performance of the proposed system when orthogonal and random signature sequences are used in multiple cell environment. Secondly, the DTT is considered as a reliability measure in noncoherent JVI-ary orthogonal frequency shift keying signaling with Reed-Solomon coding and diversity combining under the multi-channel environment. The DTT declares erasures when-ever the difference between the largest and second largest energy detector outputs does not exceed a given threshold. The performance of the DTT is compared with that of the ratio threshold test (RTT) for finite and infinite modulation size and diversity order.
Advisors
Song, Iick-Horesearcher송익호researcher
Description
한국과학기술원 : 전기및전자공학전공,
Publisher
한국과학기술원
Issue Date
2005
Identifier
244889/325007  / 000975089
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 전기및전자공학전공, 2005.2, [ vi, 67 p. ]

Keywords

Difference Threshold Test; Adaptive Transmission; Truncated; Error and Erasure Decoding; 에러 및 오류 복호; 차분 문턱값 검정; 적응 전송; 차단

URI
http://hdl.handle.net/10203/35270
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=244889&flag=dissertation
Appears in Collection
EE-Theses_Ph.D.(박사논문)
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