지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2009.8
- 수록면
- 2,333 - 2,338 (6page)
이용수
초록· 키워드
오류제보하기
High mobility communication systems need suitable channel estimation to cope high frequency selectivity channel effect. In this paper we propose data pilot based channel estimation in downlink OFDMA for IEEE 802.16e standard (Mobile WiMAX). The Mobile WiMAX channel estimation can be done by exploiting pilot from preamble, in this paper we obtain channel transfer function by exploiting pilot at symbol data with two dimensial interpolation scheme. Based on our simulation, it can be shown that the proposed method have better performance compare with preamble based channel estimation method. Afterwards we compare Linear Interpolation and MMSE interpolation for proposed channel estimation method. The Symbol Error Rate for QPSK and 64 QAM system is presented by means of simulation.
목차
Abstract
I. INTRODUCTION
II. SYSTEM DESCRIPTION
IV. COMPUTATIONAL COMPLEXITIES
V. SIMULATIONS
VI. CONCLUSION
REFERENCES
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