Abstract
An LDPC-coded frequency hopping OFDMA system is proposed for the uplink of the cellular systems, where the frequency hopping is based on a resource block (RB) for coherent demodulation. For the system, two different RB types are considered either for better intercell interference averaging capability or for better channel estimation performance. A turbo receiver with iterative channel estimation and decoding is also proposed to provide better channel estimation performance without boosting the pilot power. The performance is evaluated both in single- and multi-cell environments to investigate the effect of the interference on the overall system performance.
| Original language | English |
|---|---|
| Pages (from-to) | 1925-1928 |
| Number of pages | 4 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 59 |
| Issue number | 4 |
| Publication status | Published - 2004 |
| Event | 2004 IEEE 59th Vehicular Technology Conference, VTC2004-Spring: Towards a Global Wireless World - Milan, Italy Duration: 2004 May 17 → 2004 May 19 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics