IEICE TRANSACTIONS on Fundamentals
Reconstruction Methods of Tree Structure of Orthogonal Spreading Codes for DS-CDMA
Summary :
In CDMA mobile system, network connection is constructed with orthogonal spreading codes assigned to each user in order to distinguish one from the other. The number of distinguishable codes and the process speed are different according to the orthogonal spreading factors which, in another literature, can be described as the tree structure. In this paper, we investigate methods to improve the quality of services (QoS) of communication, by changing the spreading factors of orthogonal spreading codes according to the number of users. We propose the effective method to reconstruct the tree structure of orthogonal spreading codes for supporting various data rates transmission in DS-CDMA mobile system. We compare spreading factors with and without the reconstruction and evaluate the effectiveness of the reconstruction method.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E83-A No.11 pp.2078-2084
- Publication Date
- 2000/11/25
- Publicized
- Online ISSN
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- Type of Manuscript
- Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
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Ushio YAMAMOTO, Haris HASANUDIN, Yoshikuni ONOZATO, "Reconstruction Methods of Tree Structure of Orthogonal Spreading Codes for DS-CDMA" in IEICE TRANSACTIONS on Fundamentals,
vol. E83-A, no. 11, pp. 2078-2084, November 2000, doi: .
Abstract: In CDMA mobile system, network connection is constructed with orthogonal spreading codes assigned to each user in order to distinguish one from the other. The number of distinguishable codes and the process speed are different according to the orthogonal spreading factors which, in another literature, can be described as the tree structure. In this paper, we investigate methods to improve the quality of services (QoS) of communication, by changing the spreading factors of orthogonal spreading codes according to the number of users. We propose the effective method to reconstruct the tree structure of orthogonal spreading codes for supporting various data rates transmission in DS-CDMA mobile system. We compare spreading factors with and without the reconstruction and evaluate the effectiveness of the reconstruction method.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e83-a_11_2078/_p
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@ARTICLE{e83-a_11_2078,
author={Ushio YAMAMOTO, Haris HASANUDIN, Yoshikuni ONOZATO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Reconstruction Methods of Tree Structure of Orthogonal Spreading Codes for DS-CDMA},
year={2000},
volume={E83-A},
number={11},
pages={2078-2084},
abstract={In CDMA mobile system, network connection is constructed with orthogonal spreading codes assigned to each user in order to distinguish one from the other. The number of distinguishable codes and the process speed are different according to the orthogonal spreading factors which, in another literature, can be described as the tree structure. In this paper, we investigate methods to improve the quality of services (QoS) of communication, by changing the spreading factors of orthogonal spreading codes according to the number of users. We propose the effective method to reconstruct the tree structure of orthogonal spreading codes for supporting various data rates transmission in DS-CDMA mobile system. We compare spreading factors with and without the reconstruction and evaluate the effectiveness of the reconstruction method.},
keywords={},
doi={},
ISSN={},
month={November},}
Copy
TY - JOUR
TI - Reconstruction Methods of Tree Structure of Orthogonal Spreading Codes for DS-CDMA
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2078
EP - 2084
AU - Ushio YAMAMOTO
AU - Haris HASANUDIN
AU - Yoshikuni ONOZATO
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E83-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 2000
AB - In CDMA mobile system, network connection is constructed with orthogonal spreading codes assigned to each user in order to distinguish one from the other. The number of distinguishable codes and the process speed are different according to the orthogonal spreading factors which, in another literature, can be described as the tree structure. In this paper, we investigate methods to improve the quality of services (QoS) of communication, by changing the spreading factors of orthogonal spreading codes according to the number of users. We propose the effective method to reconstruct the tree structure of orthogonal spreading codes for supporting various data rates transmission in DS-CDMA mobile system. We compare spreading factors with and without the reconstruction and evaluate the effectiveness of the reconstruction method.
ER -
English
