ARQ Schemes for MIMO Systems
| Autor: | Wei-Chieh Chu, 朱緯傑 |
|---|---|
| Rok vydání: | 2004 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 92 We can get higher data rates and diversity gains through exploiting the multiple-input multiple-output (MIMO) channel. However, for applications of high reliability requirement, it is not enough to protect data simply by means of layered space-time coding. Hence, in this thesis, we study the combination of different ARQ schemes with layered space-time codes to achieve high data rate and high reliability transmissions. In this thesis, we combine the ARQ scheme which uses both QPSK and BPSK transmission with layered space-time codes over quasi-static fading channels. We give simulation result and compare it with STBC system using a similar ARQ scheme. Furthermore, we consider applying ARQ schemes of different complexity with layered space-time codes over the quasi-static fading channels. In addition, we combine hybrid ARQ scheme which provide different protection to messages of different reliability in BLAST system. Comparison among the various ARQ schemes for layered space-time codes is given based on the simulation results. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|