Abstract
In this paper, we investigate coded layered space-time architectures for frequency-selective fading MIMO-OFDM channels. We start with a comprehensive signal model including error propagations. Based on the signal model, we derive an improved signal detector in the mean-square-error criterion. We also describe the optimal soft bit Log-Likelihood Ratio (LLR) value computation method by taking the decision errors into account for soft-input Viterbi decoder. We compare the proposed scheme with the conventional V-BLAST system and show that significant performance improvement at high data rates can be attained.
| Original language | English |
|---|---|
| Pages (from-to) | 608-612 |
| Number of pages | 5 |
| Journal | IEEE International Conference on Communications |
| Volume | 1 |
| Publication status | Published - 2005 |
| Event | 2005 IEEE International Conference on Communications, ICC 2005 - Seoul, Korea, Republic of Duration: 2005 May 16 → 2005 May 20 |
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering