Abstract
This paper proposes a new burst coherent demodulator that improves transmission quality of microcellular TDMA/TDD systems for personal communications and has configuration suitable for low power consumption with LSIC-implementation. To achieve the better transmission quality, the proposed demodulator employs coherent detection with a unique carrier recovery scheme that can operate without any preamble for carrier recovery. In addition, the demodulator uses a clock recovery scheme with clock phase estimation using twice differentiation, which eliminates hangup and attains fast clock acquisition at 2 samples/symbol. Experimental results clarify the superiority of the proposed coherent demodulator for microcellular TDMA/TDD systems. The proposed coherent demodulator reduces the irreducible frame error rate by 40%, and achieves 4 dB improvement at the frame error rate of 10% compared with differential detection under the Rayleigh fading (fD/fs = 8×10-5, τrms/Ts = 5×10-2) typical of personal communication environments.
| Original language | English |
|---|---|
| Pages (from-to) | 927-933 |
| Number of pages | 7 |
| Journal | IEICE Transactions on Communications |
| Volume | E77-B |
| Issue number | 7 |
| Publication status | Published - 1994 Jul 1 |
| Externally published | Yes |
ASJC Scopus subject areas
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering