Abstract
Recently orthogonal frequency division multiplexing (OFDM) has gained a lot of attention In mobile radio communications because of its ability to allow high data rate transmission in a severe frequency selective fading channel. Rate compatible punctured turbo coded hybrid ARQ (RCPT HARQ) has been found to give Improved throughput performance in a DS-CDMA system. However the extent to which the RCPT HARQ improves the throughput performance of the OFDM system has not been fully understood. In this paper we evaluate by computer simulations the performance of the RCPT HARQ for the OFDM system. It is found that the type II RCPT HARQ has the highest throughput when minimum amount of redundancy bits are transmitted with each retransmission, typical case is when the puncturing period for the parity sequences is 8. It was found that the OFDM system with RCPT HARQ outperforms the DS-CDMA system with RCPT HARQ in a frequency selective channel.
| Original language | English |
|---|---|
| Pages (from-to) | 2725-2729 |
| Number of pages | 5 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 57 |
| Issue number | 4 |
| Publication status | Published - 2003 Sep 1 |
| Event | 57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of Duration: 2003 Apr 22 → 2003 Apr 25 |
Keywords
- Hybrid ARQ
- Mobile communication
- OFDM
- Rate compatible punctured turbo codes
ASJC Scopus subject areas
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering