Abstract
This paper proposes an adaptive modulation system with TDMA, TDD that selects symbol rate and modulation ldvel according to the instantaneous variation of fading channels.Proposed scheme can achieve high bit rate transmission by increasing modulation level using power margin during good channel conditions,and can improve BER performance and delay spread immunity by reducing symbol rate during poor channel conditions.Computer simulation confirms that the proposed system can achieve high speed and high quality transmission.
| Translated title of the contribution | An analysis on the performance of variable symbol rate and modulation level adaptive modulation system |
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| Original language | Japanese |
| Pages (from-to) | RCS94 - 64 |
| Journal | Technical report of IEICE. RCS |
| State | Published - 1994 |