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

DYNA ◽  
2019 ◽  
Vol 86 (208) ◽  
pp. 92-101
Author(s):  
Juan Carlos Montoya ◽  
Natalia Gaviria
Keyword(s):  
Resource Allocation ◽  
Channel Allocation ◽  
Access Network ◽  
Selection Strategy ◽  
User Association ◽  
Radio Access ◽  
Markovian Decision Process ◽  
Channel Resource ◽  
Resource Allocation Scheme ◽  
Access Network Selection

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. 

Joint radio resource allocation in fog radio access network for healthcare

2018 ◽  
Vol 12 (5) ◽  
pp. 1277-1288 ◽  
Author(s):  
Shiyuan Tong ◽  
Yun Liu ◽  
Hsin-Hung Cho ◽  
Hua-Pei Chiang ◽  
Zhenjiang Zhang
Keyword(s):  
Resource Allocation ◽  
Access Network ◽  
Radio Resource Allocation ◽  
Radio Resource ◽  
Radio Access Network ◽  
Radio Access ◽  
Fog Radio Access Network

scholarly journals Online Distributed User Association for Heterogeneous Radio Access Network

Sensors ◽  
2019 ◽  
Vol 19 (6) ◽  
pp. 1412 ◽  
Author(s):  
B. Bikram Kumar ◽  
Lokesh Sharma ◽  
Shih-Lin Wu
Keyword(s):  
Wireless Local Area Network ◽  
Local Area Network ◽  
Access Network ◽  
Future Generation ◽  
Visible Light Communication ◽  
Data Rate ◽  
Base Stations ◽  
User Association ◽  
Area Network ◽  
Radio Access

Future-generation radio access networks (RAN) are projected to fulfill the diverse requirements of user equipment (UE) by adopting a heterogeneous network (HetNet) environment. Necessary integration of different radio access technologies (RAT), such as 2G, 3G, 4G, wireless local area network (WLAN), and visible light communication (VLC) is inevitable. Moreover, UEs equipped with diverse requirements will be capable of accessing some or all the RATs. The complex HetNet environment with diverse requirements of UEs will present many challenges. The HetNet is likely to suffer severely from load imbalance among the base stations (BSs) from inheriting the traditional user association scheme such as max-SINR (signal-to-interference-plus-noise ratio)/max-RSSI (received signal strength indicator), unless some sophisticated schemes are invented. In this paper, a novel scheme is devised for a joint-user association for load balancing, where BSs are densely deployed and UEs typically have a certain degree of mobility. Unlike most of the present works, a dynamic network is considered where the position and channel condition of the UEs are not fixed. We develop two complex and distributed association schemes based on probability and d-choices, while carefully considering both loads of the BSs and SINR experienced by the UEs. Numerical results validate the efficiency of the proposed schemes by showing a received data-rate fairness among UEs and an improvement in the UE’s minimum received data rate.

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