Performance Analysis of an MC-CDMA/TDD Uplink System with Pre-Equalization in a Highly Time-Varying Channel

スポンサーリンク

概要

• 論文の詳細を見る

• We deal with channel estimation for an MC-CDMA/TDD uplink system with pre-equalization in a highly time-varying channel. First, the time variation of the channel state information (CSI) during a downlink slot is approximated to a polynomial with a proper order. Then, the CSI during the consecutive uplink slot is estimated by simply extending the polynomial to the uplink slot interval. The time variation of the downlink CSI can be approximated to a 1^<st>, 2^<nd>, or 3^<rd>-order polynomial by using the minimum mean squared error (MMSE) curve fitting method or the Lagrange interpolation method. We use the bit error rate as a proper system performance measure. Through extensive simulations, we conclude that the 2^<nd>-order polynomial approximation scheme based on the MMSE curve fitting works well under various system and channel conditions, and is quite robust to the downlink channel estimation error.

• 社団法人電子情報通信学会の論文
• 2003-07-08

著者

• Oh Seong

  School Of Electrical And Computer Eng. Ajou Univ.

• Oh Seong

  School Of Electrical And Computer Engineering Ajou University

• Sunwoo Myung

  School Of Electrical And Computer Eng. Ajou Univ.

• Sunwoo Myung

  School Of Electrical And Computer Engineering Ajou University

• Nam Ki

  School of Electrical and Computer Engineering, Ajou University

• Nam Ki

  School Of Electrical And Computer Engineering Ajou University

関連論文

• Efficient DSP Architecture for Viterbi Decoding with Small Trace Back Latency(Fundamental Theories for Communications)
• Performance Analysis of an MC-CDMA/TDD Uplink System with Pre-Equalization in a Highly Time-Varying Channel

スポンサーリンク