Abstract
A novel frequency domain Doppler diversity technique for OFDM systems is proposed. The received OFDM signal is first frequency shifted to generate various diversity branches. After demodulation, branch outputs are individually weighted and added together. For Doppler spread signal, it alters fading statistics and improves the bit error rate. Extensive simulations show that combining three diversity branches with proper frequency shifts reduces BER by an order when the normalized Doppler spread is larger than 0.3.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2677-2681 |
| Number of pages | 5 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 57 |
| Issue number | 4 |
| State | Published - 2003 |
| Event | 57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of Duration: Apr 22 2003 → Apr 25 2003 |
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics