Publicado

2019-01-01

Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment

Estrategia óptima conjunta para selección de RAN y asignación de recursos en HetNets centradas en usuario y despliegue Co-canal

DOI:

https://doi.org/10.15446/dyna.v86n208.74364

Palabras clave:

Network selection, HetNet, traffic offloading, optimal policy, resource allocation. (en)
selección de red, HetNet, descarga de tráfico, política óptima, asignación de recursos. (es)

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Autores/as

In this article, a joint Radio Access Network selection strategy and a sub-channel resource allocation scheme are introduced, where the downlink of a two-tier HetNet system is deployed in a co-channel deployment. With this scenario in mind, a Semi Markovian Decision Process based-model is proposed to find an optimal policy for user association the channel allocation, where the long-term expected reward is maximized. For the proposed strategy, the sub-channel allocation is only considered for those new and handoff petitions that potentially can be allocated in one of the SCs. In addition, with the aim to contribute to the enhancement of the overall usage of radio resources, a traffic offloading process is considered at the departure of the sessions. In order to motivate the session offloading from the MC to the SCs at departure times, we have defined that two sub-channels will be allocated in the SC for each offloaded session. Analytical results quantify and show the effectiveness of the proposed strategy. 

En este artículo, una estrategia conjunta para la selección de Red de Acceso y un esquema para la asignación de recursos de sub-canal son introducidas, donde un sistema de Redes Heterogéneas (HetNet) de dos capas es desplegada usando una sola portadora (i.e., un despliegue co-canal). Este contexto indica que la macro celda genera interferencia a los usuarios que son servidos por las celdas pequeñas y viceversa. Teniendo en cuenta este escenario, un modelo basado en Procesos de Decisión Semi Markovianos es propuesto para determinar una política óptima para la asociación de usuarios y la asignación de recursos de sub-canal, donde la recompensa en el largo plazo es maximizada. Para la estrategia propuesta, la asignación de recursos de sub-canal es únicamente considerada para aquellas peticiones nuevas o de handoff que potencialmente pueden ser asignadas en una de las celdas pequeñas. Adicionalmente, con el fin de contribuir a la mejora del uso general de los recursos de radio, un proceso de descarga de tráfico es considerado al momento de finalizar una sesión. Aquí, para motivar la descarga de tráfico de la macro celda a las celdas pequeñas, es definido que dos sub-canales serán asignados en la celda pequeña para cada sesión descargada. Resultados analíticos cuantifican y muestran la efectividad de la estrategia propuesta.

Referencias

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https://doi:10.1109/TWC.2017.2649495

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Cómo citar

IEEE

[1]
J. C. Montoya y N. Gaviria, «Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment», DYNA, vol. 86, n.º 208, pp. 92–101, ene. 2019.

ACM

[1]
Montoya, J.C. y Gaviria, N. 2019. Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment. DYNA. 86, 208 (ene. 2019), 92–101. DOI:https://doi.org/10.15446/dyna.v86n208.74364.

ACS

(1)
Montoya, J. C.; Gaviria, N. Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment. DYNA 2019, 86, 92-101.

APA

Montoya, J. C., & Gaviria, N. (2019). Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment. DYNA, 86(208), 92–101. https://doi.org/10.15446/dyna.v86n208.74364

ABNT

MONTOYA, J. C.; GAVIRIA, N. Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment. DYNA, [S. l.], v. 86, n. 208, p. 92–101, 2019. DOI: 10.15446/dyna.v86n208.74364. Disponível em: https://revistas.unal.edu.co/index.php/dyna/article/view/74364. Acesso em: 11 ago. 2022.

Chicago

Montoya, Juan Carlos, y Natalia Gaviria. 2019. «Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment». DYNA 86 (208):92-101. https://doi.org/10.15446/dyna.v86n208.74364.

Harvard

Montoya, J. C. y Gaviria, N. (2019) «Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment», DYNA, 86(208), pp. 92–101. doi: 10.15446/dyna.v86n208.74364.

MLA

Montoya, J. C., y N. Gaviria. «Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment». DYNA, vol. 86, n.º 208, enero de 2019, pp. 92-101, doi:10.15446/dyna.v86n208.74364.

Turabian

Montoya, Juan Carlos, y Natalia Gaviria. «Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment». DYNA 86, no. 208 (enero 1, 2019): 92–101. Accedido agosto 11, 2022. https://revistas.unal.edu.co/index.php/dyna/article/view/74364.

Vancouver

1.
Montoya JC, Gaviria N. Optimal joint RAN selection and resource allocation strategy in HetNet under Co-channel and user centric deployment. DYNA [Internet]. 1 de enero de 2019 [citado 11 de agosto de 2022];86(208):92-101. Disponible en: https://revistas.unal.edu.co/index.php/dyna/article/view/74364

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