Abstract
Recently terrestrial digital broadcasting systems have experienced a growth with the demand of high-data rate. In order to meet such demand, the multiple-input multiple-output (MIMO) technology has received wide attention. This paper proposes a pre-coding method, which provides high-space channel correlation for the improved performance over terrestrial broadcasting channels when the MIMO spatial multiplexing (SM) is adopted for digital video broadcasting-next generation handheld systems. When signals with two different modulation orders are transmitted through two antennas, a method that is based on non-uniform power is also proposed for improved reception performance. To optimize the proposed method, phase shifting values for the pre-coding method and appropriate non-uniform power ratio are obtained. These obtained parameters are applied to a terrestrial broadcasting system, and then the performance improvement over the conventional SM is shown through computer simulations.
| Original language | English |
|---|---|
| Article number | 7206571 |
| Pages (from-to) | 729-733 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Broadcasting |
| Volume | 61 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 2015 |
Keywords
- DVB-T2
- MIMO
- OFDM
- spatial multiplexing
- terrestrial
- \normalsize DVB-NGH