A Transmission Power Control Technique on a TDD-CDMA/TDMA System for Wireless Multimedia Networks

Yukitoshi SANADA; Kazuhiko SEKI; Qiang WANG; Shuzo KATO; Masao NAKAGAWA; Vijay K. BHARGAVA

A Transmission Power Control Technique on a TDD-CDMA/TDMA System for Wireless Multimedia Networks

Yukitoshi SANADA, Kazuhiko SEKI, Qiang WANG, Shuzo KATO, Masao NAKAGAWA, Vijay K. BHARGAVA

Full Text Views

0

Cite this

Summary :

A transmission power control technique on a TDD-CDMA/TDMA system for wireless multimedia networks is proposed. The assumed network connects mobile terminals to a node of an ATM based high speed LAN through a radio central unit. Only human interface facilities are implemented into the terminal so that users access integrated services through the node of the network. The uplink (from a mobile terminal to a radio central unit) employs a CDMA scheme to transmit human interface signals (2.4kbit/s) and the downlink employs a TDMA scheme to transmit display interface signals (24 Mbit/s). Both the CDMA and the TDMA signals occupy the same frequency band. To mitigate bit error rate degradation due to the fading, the radio central unit estimates the impulse response of the channel from the received CDMA signals and controls the transmission power of the TDMA signals to compensate the fading attenuation. The bit error rate performance of the downlink with the proposed transmission power control is theoretically analyzed under several fading conditions. Numerical results using the Nakagami-m fading model and recent propagation measurements show that the proposed power control technique compensates the fading attenuation and improves the bit error rate performances. The bit error rate of the downlink is reduced from 10^-2 to 10^-5 at the symbol SNR of 20dB by employing the proposed transmission power control, which is less sensitive to the severity of the fading. Furthermore, the proposed transmission power control is implemented without increasing the terminal complexity because all the processing on the power control of the downlink is carried out only in the radio central unit.

Publication: IEICE TRANSACTIONS on Communications Vol.E78-B No.8 pp.1095-1104

Publication Date: 1995/08/25

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section PAPER (Special Issue on Technologies for High-Speed Mobile Communications)

Category

Cite this

Copy

Yukitoshi SANADA, Kazuhiko SEKI, Qiang WANG, Shuzo KATO, Masao NAKAGAWA, Vijay K. BHARGAVA, "A Transmission Power Control Technique on a TDD-CDMA/TDMA System for Wireless Multimedia Networks" in IEICE TRANSACTIONS on Communications, vol. E78-B, no. 8, pp. 1095-1104, August 1995, doi: .
Abstract: A transmission power control technique on a TDD-CDMA/TDMA system for wireless multimedia networks is proposed. The assumed network connects mobile terminals to a node of an ATM based high speed LAN through a radio central unit. Only human interface facilities are implemented into the terminal so that users access integrated services through the node of the network. The uplink (from a mobile terminal to a radio central unit) employs a CDMA scheme to transmit human interface signals (2.4kbit/s) and the downlink employs a TDMA scheme to transmit display interface signals (24 Mbit/s). Both the CDMA and the TDMA signals occupy the same frequency band. To mitigate bit error rate degradation due to the fading, the radio central unit estimates the impulse response of the channel from the received CDMA signals and controls the transmission power of the TDMA signals to compensate the fading attenuation. The bit error rate performance of the downlink with the proposed transmission power control is theoretically analyzed under several fading conditions. Numerical results using the Nakagami-m fading model and recent propagation measurements show that the proposed power control technique compensates the fading attenuation and improves the bit error rate performances. The bit error rate of the downlink is reduced from 10^-2 to 10^-5 at the symbol SNR of 20dB by employing the proposed transmission power control, which is less sensitive to the severity of the fading. Furthermore, the proposed transmission power control is implemented without increasing the terminal complexity because all the processing on the power control of the downlink is carried out only in the radio central unit.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e78-b_8_1095/_p

Copy

@ARTICLE{e78-b_8_1095,
author={Yukitoshi SANADA, Kazuhiko SEKI, Qiang WANG, Shuzo KATO, Masao NAKAGAWA, Vijay K. BHARGAVA, },
journal={IEICE TRANSACTIONS on Communications},
title={A Transmission Power Control Technique on a TDD-CDMA/TDMA System for Wireless Multimedia Networks},
year={1995},
volume={E78-B},
number={8},
pages={1095-1104},
abstract={A transmission power control technique on a TDD-CDMA/TDMA system for wireless multimedia networks is proposed. The assumed network connects mobile terminals to a node of an ATM based high speed LAN through a radio central unit. Only human interface facilities are implemented into the terminal so that users access integrated services through the node of the network. The uplink (from a mobile terminal to a radio central unit) employs a CDMA scheme to transmit human interface signals (2.4kbit/s) and the downlink employs a TDMA scheme to transmit display interface signals (24 Mbit/s). Both the CDMA and the TDMA signals occupy the same frequency band. To mitigate bit error rate degradation due to the fading, the radio central unit estimates the impulse response of the channel from the received CDMA signals and controls the transmission power of the TDMA signals to compensate the fading attenuation. The bit error rate performance of the downlink with the proposed transmission power control is theoretically analyzed under several fading conditions. Numerical results using the Nakagami-m fading model and recent propagation measurements show that the proposed power control technique compensates the fading attenuation and improves the bit error rate performances. The bit error rate of the downlink is reduced from 10^-2 to 10^-5 at the symbol SNR of 20dB by employing the proposed transmission power control, which is less sensitive to the severity of the fading. Furthermore, the proposed transmission power control is implemented without increasing the terminal complexity because all the processing on the power control of the downlink is carried out only in the radio central unit.},
keywords={},
doi={},
ISSN={},
month={August},}

Copy

TY - JOUR
TI - A Transmission Power Control Technique on a TDD-CDMA/TDMA System for Wireless Multimedia Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 1095
EP - 1104
AU - Yukitoshi SANADA
AU - Kazuhiko SEKI
AU - Qiang WANG
AU - Shuzo KATO
AU - Masao NAKAGAWA
AU - Vijay K. BHARGAVA
PY - 1995
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E78-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 1995
AB - A transmission power control technique on a TDD-CDMA/TDMA system for wireless multimedia networks is proposed. The assumed network connects mobile terminals to a node of an ATM based high speed LAN through a radio central unit. Only human interface facilities are implemented into the terminal so that users access integrated services through the node of the network. The uplink (from a mobile terminal to a radio central unit) employs a CDMA scheme to transmit human interface signals (2.4kbit/s) and the downlink employs a TDMA scheme to transmit display interface signals (24 Mbit/s). Both the CDMA and the TDMA signals occupy the same frequency band. To mitigate bit error rate degradation due to the fading, the radio central unit estimates the impulse response of the channel from the received CDMA signals and controls the transmission power of the TDMA signals to compensate the fading attenuation. The bit error rate performance of the downlink with the proposed transmission power control is theoretically analyzed under several fading conditions. Numerical results using the Nakagami-m fading model and recent propagation measurements show that the proposed power control technique compensates the fading attenuation and improves the bit error rate performances. The bit error rate of the downlink is reduced from 10^-2 to 10^-5 at the symbol SNR of 20dB by employing the proposed transmission power control, which is less sensitive to the severity of the fading. Furthermore, the proposed transmission power control is implemented without increasing the terminal complexity because all the processing on the power control of the downlink is carried out only in the radio central unit.
ER -