Paper Abstract and Keywords |
Presentation |
2004-11-18 15:30
A Study on Complexity Reduction Scheme for Time Alignment Control in Uplink Dynamic Parameter Controlled OF/TDMA Ryota Kimura, Ryuhei Funada (Chuo Univ.), Hiroshi Harada (NICT), Shoji Shinoda (Chuo Univ.) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We have already proposed a time alignment control (TAC) in the uplink of dynamic parameter controlled OF/TDMA (DPC-OF/TDMA) system, and elucidated that the proposed TAC can mitigate an affect of multiple access interference (MAI) due to propagation delays. However, there is a problem on its complexity and calculation amount, because the proposed TAC must obtain cross-correlations between a received signal and reference symbols of all parallel sub-channels. Therefore, we propose a complexity reduction scheme for the proposed TAC in this paper. That reduction scheme modifies the form of reference symbols made from pilot symbols of all sub-channels, and includes 3 procedures; (i)shortening the symbol length, (ii)2-level quantization, and (iii)3-level quantization. In this paper, we evaluate performances of uplink ACTS (activation slot) error rate in an initial registration scenario by computer simulation, and elucidate the effectiveness of proposed complexity reduction scheme. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
OFDMA / propagation delay / time alignment control / precedence path detection / complexity reduction / / / |
Reference Info. |
IEICE Tech. Rep., vol. 104, no. 439, RCS2004-218, pp. 43-48, Nov. 2004. |
Paper # |
RCS2004-218 |
Date of Issue |
2004-11-11 (RCS) |
ISSN |
Print edition: ISSN 0913-5685 |
Download PDF |
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Conference Information |
Committee |
RCS |
Conference Date |
2004-11-18 - 2004-11-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Hotel Village, Kusatsu |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
RCS |
Conference Code |
2004-11-RCS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Study on Complexity Reduction Scheme for Time Alignment Control in Uplink Dynamic Parameter Controlled OF/TDMA |
Sub Title (in English) |
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Keyword(1) |
OFDMA |
Keyword(2) |
propagation delay |
Keyword(3) |
time alignment control |
Keyword(4) |
precedence path detection |
Keyword(5) |
complexity reduction |
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1st Author's Name |
Ryota Kimura |
1st Author's Affiliation |
Chuo University (Chuo Univ.) |
2nd Author's Name |
Ryuhei Funada |
2nd Author's Affiliation |
Chuo University (Chuo Univ.) |
3rd Author's Name |
Hiroshi Harada |
3rd Author's Affiliation |
National Institute of Information and Communications Technology (NICT) |
4th Author's Name |
Shoji Shinoda |
4th Author's Affiliation |
Chuo University (Chuo Univ.) |
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Speaker |
Author-1 |
Date Time |
2004-11-18 15:30:00 |
Presentation Time |
20 minutes |
Registration for |
RCS |
Paper # |
RCS2004-218 |
Volume (vol) |
vol.104 |
Number (no) |
no.439 |
Page |
pp.43-48 |
#Pages |
6 |
Date of Issue |
2004-11-11 (RCS) |
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