IEICE TRANSACTIONS on Communications
Development of Narrow-Band Digital Land Mobile Radio
Summary :
A narrow-band digital land mobile system has been developed that operates in the frequency bands of 150 and 400 MHz, which are commonly used by transportation-related companies, local government, and public-sector organizations--and are therefore very congested. The number of users that can be accommodated in these bands is almost doubled by reducing the channel separation to 6.25 kHz, about half that of a conventional FM system. A carrier bit rate of 9.6 kbps is achieved by using π/4 shift QPSK modulation with a roll-off factor of 0.2. Laboratory and field testing showed that: (1) Without propagation delay spread, a BER of 10-2 was obtained without using space diversity. (2) With a propagation delay spread of 10 µs, a BER of 6
- Publication
- IEICE TRANSACTIONS on Communications Vol.E83-B No.5 pp.1094-1105
- Publication Date
- 2000/05/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Terrestrial Radio Communications
Authors
Keyword
Latest Issue
Copyrights notice of machine-translated contents
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Cite this
Copy
Eimatsu MORIYAMA, Yukiyoshi KAMIO, Kiyoshi HAMAGUCHI, "Development of Narrow-Band Digital Land Mobile Radio" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 5, pp. 1094-1105, May 2000, doi: .
Abstract: A narrow-band digital land mobile system has been developed that operates in the frequency bands of 150 and 400 MHz, which are commonly used by transportation-related companies, local government, and public-sector organizations--and are therefore very congested. The number of users that can be accommodated in these bands is almost doubled by reducing the channel separation to 6.25 kHz, about half that of a conventional FM system. A carrier bit rate of 9.6 kbps is achieved by using π/4 shift QPSK modulation with a roll-off factor of 0.2. Laboratory and field testing showed that: (1) Without propagation delay spread, a BER of 10-2 was obtained without using space diversity. (2) With a propagation delay spread of 10 µs, a BER of 6
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_5_1094/_p
Copy
@ARTICLE{e83-b_5_1094,
author={Eimatsu MORIYAMA, Yukiyoshi KAMIO, Kiyoshi HAMAGUCHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Development of Narrow-Band Digital Land Mobile Radio},
year={2000},
volume={E83-B},
number={5},
pages={1094-1105},
abstract={A narrow-band digital land mobile system has been developed that operates in the frequency bands of 150 and 400 MHz, which are commonly used by transportation-related companies, local government, and public-sector organizations--and are therefore very congested. The number of users that can be accommodated in these bands is almost doubled by reducing the channel separation to 6.25 kHz, about half that of a conventional FM system. A carrier bit rate of 9.6 kbps is achieved by using π/4 shift QPSK modulation with a roll-off factor of 0.2. Laboratory and field testing showed that: (1) Without propagation delay spread, a BER of 10-2 was obtained without using space diversity. (2) With a propagation delay spread of 10 µs, a BER of 6
keywords={},
doi={},
ISSN={},
month={May},}
Copy
TY - JOUR
TI - Development of Narrow-Band Digital Land Mobile Radio
T2 - IEICE TRANSACTIONS on Communications
SP - 1094
EP - 1105
AU - Eimatsu MORIYAMA
AU - Yukiyoshi KAMIO
AU - Kiyoshi HAMAGUCHI
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2000
AB - A narrow-band digital land mobile system has been developed that operates in the frequency bands of 150 and 400 MHz, which are commonly used by transportation-related companies, local government, and public-sector organizations--and are therefore very congested. The number of users that can be accommodated in these bands is almost doubled by reducing the channel separation to 6.25 kHz, about half that of a conventional FM system. A carrier bit rate of 9.6 kbps is achieved by using π/4 shift QPSK modulation with a roll-off factor of 0.2. Laboratory and field testing showed that: (1) Without propagation delay spread, a BER of 10-2 was obtained without using space diversity. (2) With a propagation delay spread of 10 µs, a BER of 6
ER -
English
