Abstract
Adaptive prediction iterative channel estimation is presented for combined antenna diversity and coherent rake reception of direct sequence spread spectrum (DSSS) signals. Its first stage uses pilot-aided adaptive prediction channel estimation, while the succeeding iteration stages use decision feedback and moving average filtering for channel re-estimation. The bit error rate (BER) performance of DSSS signal computer simulations evaluate transmission in a frequency selective Rayleigh fading channel. It is found that the adaptive prediction iterative channel estimation is superior to the non adaptive iterative channel estimation using the conventional weighted multi-slot averaging (WMSA) filtering at the first iteration stage, particularly in a fast fading channel.
Original language | English |
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Pages (from-to) | 2405-2415 |
Number of pages | 11 |
Journal | IEICE Transactions on Communications |
Volume | E85-B |
Issue number | 11 |
Publication status | Published - 2002 Nov |
Keywords
- DSSS
- Fading channel
- Iterative channel estimation
- Pilot symbol
ASJC Scopus subject areas
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering