Channel Reliability Metric for Nakagami-m Fading Without Channel State Information
| Document type: | Conference Papers |
|---|---|
| Peer reviewed: | Yes |
| Author(s): | Asri Shaheem, Hans-Jürgen Zepernick, Manora Caldera |
| Title: | Channel Reliability Metric for Nakagami-m Fading Without Channel State Information |
| Conference name: | IEEE Global Communications Conference |
| Year: | 2005 |
| Pagination: | 397-402 |
| Publisher: | IEEE |
| City: | St. Louis, USA |
| Organization: | Blekinge Institute of Technology |
| Department: | School of Engineering - Dept. of Signal Processing (*** Error ***) School of Engineering S- 372 25 Ronneby +46 455 38 50 00 http://www.tek.bth.se/ |
| Authors e-mail: | shaheema@watri.org.au, hans-jurgen.zepernick@bth.se |
| Language: | English |
| Abstract: | An exact channel reliability metric for Nakagami-m fading when no channel state information (CSI) is available at the receiver, is developed. The proposed metric is suitable for combination with iterative decoding schemes to ensure optimum performance. A low complexity cubic approximation to the exact metric, which offers almost identical performance and significantly outperforms the conventional linear approximation, is presented. The numerical results obtained using a single parity check (SPC) block turbo code (BTC), show that the conventional linear approach can result in up to a 27.5dB penalty at BER of 10E-5, compared to the case where perfect CSI is available. On the other hand, the use of the proposed exact reliability metric results in only a 1.1dB performance loss at the same BER. |
| Subject: | Telecommunications\General |
