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
Cet article étudie l'accès dynamique au spectre basé sur la détection spectrale de la couche MAC et la stratégie de pré-allocation de canal antérieure. Nous combinons d’abord l’utilisation du canal avec la probabilité de transition de l’état du canal d’inactif à occupé pour refléter la qualité des opportunités de canal dans les systèmes radio cognitifs. Ensuite, un algorithme de détection de spectre de couche MAC basé sur l'ordre décroissant de qualité d'opportunité de canal (COQDO) est proposé pour le scénario d'utilisateur secondaire unique, de sorte que l'utilisateur secondaire unique puisse bénéficier d'un accès dynamique au spectre. Pour le scénario multi-utilisateurs secondaires, afin de résoudre le problème de collision de canaux parmi les utilisateurs secondaires dans l'accès dynamique au spectre, un algorithme conjoint de détection de spectre de couche MAC et de pré-allocation de canal préalable est proposé et analysé. Un problème de collision de canal se produit lorsque plusieurs utilisateurs secondaires détectent le canal comme étant inactif et y accèdent en même temps. De plus, la pré-attribution préalable du canal est optimisée à l'aide de l'algorithme conventionnel CSGC (Color Sensitive Graph Coloring). Des résultats de simulation détaillés sont présentés pour comparer nos algorithmes proposés avec les algorithmes existants en termes de délai de recherche de canal inactif et de délai de transfert de canal accumulé.
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Yanzan SUN, Honglin HU, Fuqiang LIU, Ping WANG, Huiyue YI, "Dynamic Spectrum Access Based on MAC-Layer Spectrum Sensing and Prior Channel Pre-Allocation Strategy" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 3, pp. 609-619, March 2010, doi: 10.1587/transcom.E93.B.609.
Abstract: This paper investigates dynamic spectrum access based on MAC-Layer spectrum sensing and prior channel pre-allocation strategy. We first combine channel utilization with channel state transition probability from idle to busy to reflect the channel opportunity quality in cognitive radio systems. Then a MAC-Layer spectrum sensing algorithm based on Channel Opportunity Quality Descending Order (COQDO) is proposed for the single secondary user scenario, so that the single secondary user can be provided with dynamic spectrum access. For the multi-secondary users scenario, in order to solve the channel collision problem among secondary users in dynamic spectrum access, a joint MAC-Layer spectrum sensing and prior channel pre-allocation algorithm is proposed and analyzed. Channel collision problem occurs when more than one secondary users detect the channel as idle and access it at the same time. Furthermore, the prior channel pre-allocation is optimized by using the conventional Color Sensitive Graph Coloring (CSGC) algorithm. Extensive simulation results are presented to compare our proposed algorithms with existing algorithms in terms of idle channel search delay and accumulated channel handoff delay.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.609/_p
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@ARTICLE{e93-b_3_609,
author={Yanzan SUN, Honglin HU, Fuqiang LIU, Ping WANG, Huiyue YI, },
journal={IEICE TRANSACTIONS on Communications},
title={Dynamic Spectrum Access Based on MAC-Layer Spectrum Sensing and Prior Channel Pre-Allocation Strategy},
year={2010},
volume={E93-B},
number={3},
pages={609-619},
abstract={This paper investigates dynamic spectrum access based on MAC-Layer spectrum sensing and prior channel pre-allocation strategy. We first combine channel utilization with channel state transition probability from idle to busy to reflect the channel opportunity quality in cognitive radio systems. Then a MAC-Layer spectrum sensing algorithm based on Channel Opportunity Quality Descending Order (COQDO) is proposed for the single secondary user scenario, so that the single secondary user can be provided with dynamic spectrum access. For the multi-secondary users scenario, in order to solve the channel collision problem among secondary users in dynamic spectrum access, a joint MAC-Layer spectrum sensing and prior channel pre-allocation algorithm is proposed and analyzed. Channel collision problem occurs when more than one secondary users detect the channel as idle and access it at the same time. Furthermore, the prior channel pre-allocation is optimized by using the conventional Color Sensitive Graph Coloring (CSGC) algorithm. Extensive simulation results are presented to compare our proposed algorithms with existing algorithms in terms of idle channel search delay and accumulated channel handoff delay.},
keywords={},
doi={10.1587/transcom.E93.B.609},
ISSN={1745-1345},
month={March},}
Copier
TY - JOUR
TI - Dynamic Spectrum Access Based on MAC-Layer Spectrum Sensing and Prior Channel Pre-Allocation Strategy
T2 - IEICE TRANSACTIONS on Communications
SP - 609
EP - 619
AU - Yanzan SUN
AU - Honglin HU
AU - Fuqiang LIU
AU - Ping WANG
AU - Huiyue YI
PY - 2010
DO - 10.1587/transcom.E93.B.609
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2010
AB - This paper investigates dynamic spectrum access based on MAC-Layer spectrum sensing and prior channel pre-allocation strategy. We first combine channel utilization with channel state transition probability from idle to busy to reflect the channel opportunity quality in cognitive radio systems. Then a MAC-Layer spectrum sensing algorithm based on Channel Opportunity Quality Descending Order (COQDO) is proposed for the single secondary user scenario, so that the single secondary user can be provided with dynamic spectrum access. For the multi-secondary users scenario, in order to solve the channel collision problem among secondary users in dynamic spectrum access, a joint MAC-Layer spectrum sensing and prior channel pre-allocation algorithm is proposed and analyzed. Channel collision problem occurs when more than one secondary users detect the channel as idle and access it at the same time. Furthermore, the prior channel pre-allocation is optimized by using the conventional Color Sensitive Graph Coloring (CSGC) algorithm. Extensive simulation results are presented to compare our proposed algorithms with existing algorithms in terms of idle channel search delay and accumulated channel handoff delay.
ER -