A Complexity-Reduced Time Alignment Control in Uplink Dynamic Parameter Controlled OF/TDMA

Ryota KIMURA; Ryuhei FUNADA; Hiroshi HARADA; Shigeru SHIMAMOTO

doi:10.1093/ietcom/e89-b.8.2196

A Complexity-Reduced Time Alignment Control in Uplink Dynamic Parameter Controlled OF/TDMA

Ryota KIMURA, Ryuhei FUNADA, Hiroshi HARADA, Shigeru SHIMAMOTO

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We have been investigating an orthogonal frequency division multiple access (OFDMA) based cellular system that is called "dynamic parameter controlled orthogonal frequency and time division multiple access (DPC-OF/TDMA)" for the development of beyond third generation (B3G) mobile communication systems. Moreover, we have already proposed a time alignment control (TAC) to compensate propagation delays that induce a multiple-access interference (MAI) in the uplink OFDMA. However, that TAC includes a large amount of computations. This means that it is quite difficult for the OFDMA systems to implement TAC into volume-limited hardware devices such as field programmable gate array (FPGA). Thus, we propose a new complexity-reduced TAC (CRTAC) in this paper. CRTAC can be implemented into such devices easily. In this paper, we show some computer simulation results, and then evaluate the error rate performances of DPC-OF/TDMA employing CRTAC. Moreover, we also show the benefit of the reasonable level of the implementation complexity made by CRTAC.

Publication: IEICE TRANSACTIONS on Communications Vol.E89-B No.8 pp.2196-2207

Publication Date: 2006/08/01

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Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e89-b.8.2196

Type of Manuscript: PAPER

Category: Terrestrial Radio Communications

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Ryota KIMURA, Ryuhei FUNADA, Hiroshi HARADA, Shigeru SHIMAMOTO, "A Complexity-Reduced Time Alignment Control in Uplink Dynamic Parameter Controlled OF/TDMA" in IEICE TRANSACTIONS on Communications, vol. E89-B, no. 8, pp. 2196-2207, August 2006, doi: 10.1093/ietcom/e89-b.8.2196.
Abstract: We have been investigating an orthogonal frequency division multiple access (OFDMA) based cellular system that is called "dynamic parameter controlled orthogonal frequency and time division multiple access (DPC-OF/TDMA)" for the development of beyond third generation (B3G) mobile communication systems. Moreover, we have already proposed a time alignment control (TAC) to compensate propagation delays that induce a multiple-access interference (MAI) in the uplink OFDMA. However, that TAC includes a large amount of computations. This means that it is quite difficult for the OFDMA systems to implement TAC into volume-limited hardware devices such as field programmable gate array (FPGA). Thus, we propose a new complexity-reduced TAC (CRTAC) in this paper. CRTAC can be implemented into such devices easily. In this paper, we show some computer simulation results, and then evaluate the error rate performances of DPC-OF/TDMA employing CRTAC. Moreover, we also show the benefit of the reasonable level of the implementation complexity made by CRTAC.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e89-b.8.2196/_p

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@ARTICLE{e89-b_8_2196,
author={Ryota KIMURA, Ryuhei FUNADA, Hiroshi HARADA, Shigeru SHIMAMOTO, },
journal={IEICE TRANSACTIONS on Communications},
title={A Complexity-Reduced Time Alignment Control in Uplink Dynamic Parameter Controlled OF/TDMA},
year={2006},
volume={E89-B},
number={8},
pages={2196-2207},
abstract={We have been investigating an orthogonal frequency division multiple access (OFDMA) based cellular system that is called "dynamic parameter controlled orthogonal frequency and time division multiple access (DPC-OF/TDMA)" for the development of beyond third generation (B3G) mobile communication systems. Moreover, we have already proposed a time alignment control (TAC) to compensate propagation delays that induce a multiple-access interference (MAI) in the uplink OFDMA. However, that TAC includes a large amount of computations. This means that it is quite difficult for the OFDMA systems to implement TAC into volume-limited hardware devices such as field programmable gate array (FPGA). Thus, we propose a new complexity-reduced TAC (CRTAC) in this paper. CRTAC can be implemented into such devices easily. In this paper, we show some computer simulation results, and then evaluate the error rate performances of DPC-OF/TDMA employing CRTAC. Moreover, we also show the benefit of the reasonable level of the implementation complexity made by CRTAC.},
keywords={},
doi={10.1093/ietcom/e89-b.8.2196},
ISSN={1745-1345},
month={August},}

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TY - JOUR
TI - A Complexity-Reduced Time Alignment Control in Uplink Dynamic Parameter Controlled OF/TDMA
T2 - IEICE TRANSACTIONS on Communications
SP - 2196
EP - 2207
AU - Ryota KIMURA
AU - Ryuhei FUNADA
AU - Hiroshi HARADA
AU - Shigeru SHIMAMOTO
PY - 2006
DO - 10.1093/ietcom/e89-b.8.2196
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E89-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2006
AB - We have been investigating an orthogonal frequency division multiple access (OFDMA) based cellular system that is called "dynamic parameter controlled orthogonal frequency and time division multiple access (DPC-OF/TDMA)" for the development of beyond third generation (B3G) mobile communication systems. Moreover, we have already proposed a time alignment control (TAC) to compensate propagation delays that induce a multiple-access interference (MAI) in the uplink OFDMA. However, that TAC includes a large amount of computations. This means that it is quite difficult for the OFDMA systems to implement TAC into volume-limited hardware devices such as field programmable gate array (FPGA). Thus, we propose a new complexity-reduced TAC (CRTAC) in this paper. CRTAC can be implemented into such devices easily. In this paper, we show some computer simulation results, and then evaluate the error rate performances of DPC-OF/TDMA employing CRTAC. Moreover, we also show the benefit of the reasonable level of the implementation complexity made by CRTAC.
ER -