Abstract
Coherent rake reception of direct sequence code division multiple access (DS-CDMA) signals requires accurate channel estimation in a frequency-selective fading channel. This paper studies a code-multiplexed pilot-assisted frequency-domain channel estimation using FFT/IFFT, which has a good tracking capability against fast fading and can reduce the effect of noise and interpath interference (IPI). The average bit error rate (BER) performance of rake combining in a time- and frequency-selective fading channel is theoretically evaluated and confirmed by computer simulation. It is shown that the frequency-domain channel estimation using code-multiplexed pilot is very robust against fast fading.
| Original language | English |
|---|---|
| Pages (from-to) | 694-698 |
| Number of pages | 5 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 60 |
| Issue number | 1 |
| Publication status | Published - 2004 Dec 1 |
| Event | 2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States Duration: 2004 Sep 26 → 2004 Sep 29 |
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics