Abstract
Turbo decoding with coherent detection requires accurate channel estimation. In this paper, we consider outer-turbo channel estimation (OTCE), which carries out iterative channel estimation before turbo decoding, and inner-turbo channel estimation (ITCE), which incorporates iterative channel estimation into turbo decoding process. The average bit error rate (BER) performances with OTCE and ITCE in a frequency nonselective Rayleigh fading channel with antenna diversity reception are evaluated by means of computer simulations to be compared. It is found that although ITCE is superior to OTCE, OTCE provides the average BER performance very close to ITCE when dual antenna diversity reception is used.
| Original language | English |
|---|---|
| Pages (from-to) | 1149-1152 |
| Number of pages | 4 |
| Journal | IEICE Transactions on Communications |
| Volume | E86-B |
| Issue number | 3 |
| Publication status | Published - 2003 Mar |
Keywords
- Iterative channel estimation
- Iterative decoding
- Pilot symbol
- Turbo decoding
ASJC Scopus subject areas
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering