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
O gerenciamento de localização é crucial para sistemas móveis. Um celular deve estar localizado sempre que uma conexão for estabelecida. Assim, os sistemas móveis devem lidar com atualizações e consultas frequentes de localização. Além do esquema HLR/VLR no IS-41 e GSM, a viabilidade de reduzir a carga da rede causada pela localização de usuários móveis tem recebido atenção considerável. Um algoritmo de localização do usuário denominado "Encaminhamento de ponteiro com HLR único" foi proposto para reduzir o custo de atualização de localização. Posteriormente, o esquema HLR distribuído foi proposto para evitar que o HLR se tornasse um gargalo de sinal na rede de sinalização. Essa abordagem elimina o custo de atualização de vários HLRs, reduzindo enormemente o atraso de acesso ao banco de dados, mas também introduz um longo percurso na cadeia de ponteiros que pode causar grandes custos de rastreamento de localização e longos tempos/custos de entrega de chamadas. Este estudo propõe uma estratégia eficiente de rastreamento de localização, denominada "Estratégia de encaminhamento rápido de ponteiro com HLR distribuído". Essa estratégia garante que o comprimento da cadeia de ponteiro nunca exceda um. Na verdade, esta estratégia fornece um limite superior para o tempo de rastreamento de localização. Seu desempenho é analisado numericamente. Os resultados deste estudo demonstram que nossa estratégia pode reduzir consideravelmente a complexidade da implementação e o tempo/custo de entrega da chamada.
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Cheng-Ming WENG, Chen-Hung CHU, "A Fast Pointer Forwarding Strategy for Location Tracking in Distributed HLR Environment" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 9, pp. 1706-1713, September 2002, doi: .
Abstract: Location management is crucial for mobile systems. A mobile must be located whenever a connection is established. Thus, mobile systems must cope with frequent location updates and queries. In addition to the HLR/VLR scheme in IS-41 and GSM, the feasibility of reducing the network load caused by locating mobile users has received considerable attention. One user location algorithm called "Pointer Forwarding with Single HLR," was proposed to reduce location update cost. Thereafter, the distributed HLR scheme was proposed to prevent HLR from becoming a signal bottleneck in the signaling network. This approach eliminates the cost of updating multiple HLRs, vastly reducing the database access delay, but also introduces long pointer chain traverse that may cause large location tracking costs and long call delivery times/costs. This study proposes a efficient location tracking strategy, named, "Fast Pointer Forwarding Strategy with Distributed HLR. " This strategy ensures that the pointer chain length never exceeds one. In fact, this strategy provides an upper bound on location tracking time. Its performance is numerically analyzed. Results in this study demonstrate that our strategy can considerably reduce the complexity of implementation and the call delivery time/cost.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_9_1706/_p
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@ARTICLE{e85-b_9_1706,
author={Cheng-Ming WENG, Chen-Hung CHU, },
journal={IEICE TRANSACTIONS on Communications},
title={A Fast Pointer Forwarding Strategy for Location Tracking in Distributed HLR Environment},
year={2002},
volume={E85-B},
number={9},
pages={1706-1713},
abstract={Location management is crucial for mobile systems. A mobile must be located whenever a connection is established. Thus, mobile systems must cope with frequent location updates and queries. In addition to the HLR/VLR scheme in IS-41 and GSM, the feasibility of reducing the network load caused by locating mobile users has received considerable attention. One user location algorithm called "Pointer Forwarding with Single HLR," was proposed to reduce location update cost. Thereafter, the distributed HLR scheme was proposed to prevent HLR from becoming a signal bottleneck in the signaling network. This approach eliminates the cost of updating multiple HLRs, vastly reducing the database access delay, but also introduces long pointer chain traverse that may cause large location tracking costs and long call delivery times/costs. This study proposes a efficient location tracking strategy, named, "Fast Pointer Forwarding Strategy with Distributed HLR. " This strategy ensures that the pointer chain length never exceeds one. In fact, this strategy provides an upper bound on location tracking time. Its performance is numerically analyzed. Results in this study demonstrate that our strategy can considerably reduce the complexity of implementation and the call delivery time/cost.},
keywords={},
doi={},
ISSN={},
month={September},}
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TY - JOUR
TI - A Fast Pointer Forwarding Strategy for Location Tracking in Distributed HLR Environment
T2 - IEICE TRANSACTIONS on Communications
SP - 1706
EP - 1713
AU - Cheng-Ming WENG
AU - Chen-Hung CHU
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2002
AB - Location management is crucial for mobile systems. A mobile must be located whenever a connection is established. Thus, mobile systems must cope with frequent location updates and queries. In addition to the HLR/VLR scheme in IS-41 and GSM, the feasibility of reducing the network load caused by locating mobile users has received considerable attention. One user location algorithm called "Pointer Forwarding with Single HLR," was proposed to reduce location update cost. Thereafter, the distributed HLR scheme was proposed to prevent HLR from becoming a signal bottleneck in the signaling network. This approach eliminates the cost of updating multiple HLRs, vastly reducing the database access delay, but also introduces long pointer chain traverse that may cause large location tracking costs and long call delivery times/costs. This study proposes a efficient location tracking strategy, named, "Fast Pointer Forwarding Strategy with Distributed HLR. " This strategy ensures that the pointer chain length never exceeds one. In fact, this strategy provides an upper bound on location tracking time. Its performance is numerically analyzed. Results in this study demonstrate that our strategy can considerably reduce the complexity of implementation and the call delivery time/cost.
ER -