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Performance analysis of equalization techniques for MIMO systems in wireless communication
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- 발행기관
- 보안공학연구지원센터(IJSH) 바로가기
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- 간행물
- International Journal of Smart Home 바로가기
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- 통권
- Vol.4 No.4 (2010.11)바로가기
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- 페이지
- pp.47-63
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- 저자
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- 언어
- 영어(ENG)
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- URL
- https://www.earticle.net/Article/A148075
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원문정보
초록
- 영어
- In mobile communications systems, data transmission at high bit rates is essential for many services such as video, high quality audio and mobile integrated service digital network. When the data is transmitted at high bit rates, over mobile radio channels, the
channel impulse response can extend over many symbol periods, which leads to Inter-symbol interference (ISI). Orthogonal Frequency Division Multiplexing (OFDM) is one of the promising technology to mitigate the ISI. In an OFDM signal the bandwidth is divided into many narrow sub-channels which are transmitted in parallel. Each sub-channel is typically chosen narrow enough to eliminate the effect of delay spread. By combining OFDM with CDMA dispersive fading limitations of the cellular mobile radio environment can be overcome and the effects of co-channel interference can be reduced. In this paper, the performances of equalization techniques by considering 2 transmit 2 receive antenna case (resulting in a 2×2 MIMO channel). Assume that the channel is a flat fading Rayleigh multipath channel and the modulation is BPSK.
The ultimate goal is to provide universal personal and multimedia communication without regard to mobility or location with high data rates. To achieve such an objective we need a strong equalization techniques to compensate ISI.
ꠑ Zero Forcing (ZF) equalization
ꠑ Minimum Mean Square Error (MMSE) equalization
ꠑ Zero Forcing equalization with Successive Interference Cancellation (ZF-SIC)
ꠑ ZF_SIC with optimal ordering and
ꠑ MIMO with MMSE SIC and optimal ordering
목차
Abstract
1. Introduction
2. MIMO-OFDM Systems
3. Adaptive Equalizer
4.1 Zero forcing (ZF) equalizer
4.2 Minimum Mean Square Error (MMSE) equalizer
4.3 Zero Forcing with Successive Interference Cancellation (ZF-SIC)
4.4 Successive Interference Cancellation with optimal ordering
4.5 MMSE SIC and optimal ordering
5. Results
5.1 Zero forcing equalizer
5.2 Minimum Mean Square Error (MMSE) equalization
5.3. Zero Forcing equalization with Successive Interference Cancellation (ZFSIC)
5.4. ZF-SIC with optimal ordering
5.5. MMSE SIC and optimal ordering
6. Conclusion
References
키워드
fading channels inter symbol interference Raleigh fading adaptive equalizations저자
간행물 정보
발행기관
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- 발행기관명
- 보안공학연구지원센터(IJSH) [Science & Engineering Research Support Center, Republic of Korea(IJSH)]
- 설립연도
- 2006
- 분야
- 공학>컴퓨터학
- 소개
- 1. 보안공학에 대한 각종 조사 및 연구 2. 보안공학에 대한 응용기술 연구 및 발표 3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최 4. 보안공학 기술의 상호 협조 및 정보교환 5. 보안공학에 관한 표준화 사업 및 규격의 제정 6. 보안공학에 관한 산학연 협동의 증진 7. 국제적 학술 교류 및 기술 협력 8. 보안공학에 관한 논문지 발간 9. 기타 본 회 목적 달성에 필요한 사업
간행물
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- 간행물명
- International Journal of Smart Home
- 간기
- 격월간
- pISSN
- 1975-4094
- 수록기간
- 2008~2016
- 십진분류
- KDC 505 DDC 605
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