The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Le système CDMA peut fournir plus de capacité que d'autres systèmes et la couche hiérarchique de cellules est requise pour la conception du système afin de fournir un équilibre entre la maximisation du nombre d'utilisateurs par bande de fréquence et la minimisation du contrôle du réseau associé au transfert. Cependant, l'interférence dans le même canal d'une microcellule à une macrocellule et vice versa dans une telle structure à deux niveaux est différente de celle d'une structure homogène. Afin d'éviter de graves interférences, différents canaux RF doivent être utilisés dans les microcellules et les macrocellules dans une structure hiérarchique. L’utilisation efficace de multicanaux pour les macrocellules et les microcellules est ici une préoccupation majeure. Dans cette étude, nous étudions la ségrégation des canaux dans un système cellulaire à deux niveaux. De plus, nous organisons intentionnellement les procédures permettant au MS en macrocellule et microcellule de choisir le canal. Les canaux de macrocellule (resp. microcellule) auxquels accéder sont triés en trois groupes prioritaires. Afin de justifier les mérites de la méthode de ségrégation de canaux proposée, nous définissons les trois mesures de performance suivantes, notamment le gain de capacité, la réponse à la variation de la charge de trafic et la stabilité du système. Dans des conditions de charge de trafic stables, le gain de capacité est en moyenne de 10 %. Si la charge de trafic varie, le système peut réagir rapidement et récupérer les chaînes empruntées avec 2tp intervalle de temps tant que les paramètres système appropriés sont choisis.
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Jung-Shyr WU, Bor-Jiunn HWANG, "Channel Segregation Method in a Two-Tier CDMA System" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 3, pp. 605-613, March 2001, doi: .
Abstract: The CDMA system can provide more capacity than other systems and the hierarchical layer of cells is required for system design to provide a balance between maximizing the number of users perfrequency band and minimizing the network control associated with handoff. However, the co-channel interference from microcell to macrocell and vice versa in such a two-tier structure is different from that in a homogeneous structure. In order to avoid the serious interference, different RF channels should be used in microcell and macrocell in hierarchical structure. The efficient usage of multi-channels for macrocell and microcell is of primary concern herein. In this study, we investigate the channel segregation in a two-tier cellular system. Moreover, we intentionally arrange the procedures for the MS in macrocell and microcell to choose the channel. The macrocell's (resp., microcell's ) channels to be accessed are sorted into three priority groups. In order to justify the merits of the proposed channel segregation method, we define the following three performance measures including capacity gain, response to the variation of traffic loading and system stability. Under the condition of steady-state traffic load, capacity gain is 10% on the average. If the traffic load vary, the system can respond quickly and retrieve the borrowed channels with 2tp time interval as long as appropriate system parameters are chosen.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_3_605/_p
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@ARTICLE{e84-b_3_605,
author={Jung-Shyr WU, Bor-Jiunn HWANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Channel Segregation Method in a Two-Tier CDMA System},
year={2001},
volume={E84-B},
number={3},
pages={605-613},
abstract={The CDMA system can provide more capacity than other systems and the hierarchical layer of cells is required for system design to provide a balance between maximizing the number of users perfrequency band and minimizing the network control associated with handoff. However, the co-channel interference from microcell to macrocell and vice versa in such a two-tier structure is different from that in a homogeneous structure. In order to avoid the serious interference, different RF channels should be used in microcell and macrocell in hierarchical structure. The efficient usage of multi-channels for macrocell and microcell is of primary concern herein. In this study, we investigate the channel segregation in a two-tier cellular system. Moreover, we intentionally arrange the procedures for the MS in macrocell and microcell to choose the channel. The macrocell's (resp., microcell's ) channels to be accessed are sorted into three priority groups. In order to justify the merits of the proposed channel segregation method, we define the following three performance measures including capacity gain, response to the variation of traffic loading and system stability. Under the condition of steady-state traffic load, capacity gain is 10% on the average. If the traffic load vary, the system can respond quickly and retrieve the borrowed channels with 2tp time interval as long as appropriate system parameters are chosen.},
keywords={},
doi={},
ISSN={},
month={March},}
Copier
TY - JOUR
TI - Channel Segregation Method in a Two-Tier CDMA System
T2 - IEICE TRANSACTIONS on Communications
SP - 605
EP - 613
AU - Jung-Shyr WU
AU - Bor-Jiunn HWANG
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2001
AB - The CDMA system can provide more capacity than other systems and the hierarchical layer of cells is required for system design to provide a balance between maximizing the number of users perfrequency band and minimizing the network control associated with handoff. However, the co-channel interference from microcell to macrocell and vice versa in such a two-tier structure is different from that in a homogeneous structure. In order to avoid the serious interference, different RF channels should be used in microcell and macrocell in hierarchical structure. The efficient usage of multi-channels for macrocell and microcell is of primary concern herein. In this study, we investigate the channel segregation in a two-tier cellular system. Moreover, we intentionally arrange the procedures for the MS in macrocell and microcell to choose the channel. The macrocell's (resp., microcell's ) channels to be accessed are sorted into three priority groups. In order to justify the merits of the proposed channel segregation method, we define the following three performance measures including capacity gain, response to the variation of traffic loading and system stability. Under the condition of steady-state traffic load, capacity gain is 10% on the average. If the traffic load vary, the system can respond quickly and retrieve the borrowed channels with 2tp time interval as long as appropriate system parameters are chosen.
ER -