scholarly journals An Optimal Initial Radio Access Technology Selection Method for Heterogeneous Wireless Networks

2021 ◽  
Author(s):  
Mizanur Rahman
Keyword(s):  
Wireless Networks ◽  
Heterogeneous Wireless Networks ◽  
Geographical Area ◽  
Technology Selection ◽  
System Capacity ◽  
Iteration Algorithm ◽  
Value Iteration ◽  
Radio Access Technology ◽  
Radio Access ◽  
Markov Decision

In Heterogeneous Wireless Networks, different overlapped Radio Access Technologies (RATs) can coexist with each other in the same geographical area. In such environment, a challenge is to select in which available RATs a user can be connected upon making an incoming service request. In this thesis, this challenge is investigated by proposing a Joint Call Admission Control (JCAC) -based approach that uses the framework of Semi-Markov Decision Process for initial RAT selection in two co-located wireless networks supporting two different service classes. The optimization problem involves the design of a cost function that weights the blocking cost and the energy consumption cost. The JCAC optimal policy is derived using the Value Iteration Algorithm. Simulations results show that the system capacity is maximized while selecting the less energy consuming RAT.

scholarly journals An Optimal Initial Radio Access Technology Selection Method for Heterogeneous Wireless Networks

2021 ◽  
Author(s):  
Mizanur Rahman
Keyword(s):  
Wireless Networks ◽  
Heterogeneous Wireless Networks ◽  
Geographical Area ◽  
Technology Selection ◽  
System Capacity ◽  
Iteration Algorithm ◽  
Value Iteration ◽  
Radio Access Technology ◽  
Radio Access ◽  
Markov Decision

In Heterogeneous Wireless Networks, different overlapped Radio Access Technologies (RATs) can coexist with each other in the same geographical area. In such environment, a challenge is to select in which available RATs a user can be connected upon making an incoming service request. In this thesis, this challenge is investigated by proposing a Joint Call Admission Control (JCAC) -based approach that uses the framework of Semi-Markov Decision Process for initial RAT selection in two co-located wireless networks supporting two different service classes. The optimization problem involves the design of a cost function that weights the blocking cost and the energy consumption cost. The JCAC optimal policy is derived using the Value Iteration Algorithm. Simulations results show that the system capacity is maximized while selecting the less energy consuming RAT.

scholarly journals An SMDP-Based initial radio access technology selection method for heterogeneous wireless networks

2021 ◽  
Author(s):  
Kazi R Islam
Keyword(s):  
Wireless Networks ◽  
Energy Consumption ◽  
Heterogeneous Wireless Networks ◽  
Technology Selection ◽  
Service Request ◽  
Radio Access Technology ◽  
Radio Access ◽  
Flexible Architecture ◽  
Consumption Cost ◽  
Rat Selection

Heterogeneous Wireless Networks (HetNets) are a class of networks that have been designed to provide an open and flexible architecture for the coexistence of various distinct Radio Access Technologies (RATs). In such networks, one of the key challenges is the selection of the best available RATs when a user is connected upon making an incoming service request. This thesis proposes a Joint Call Admission Control (JCAC) - based approach for initial RAT selection in HetNets composed of two co-located wireless networks . The RAT selection problem in such HetNet is formulated by using a JCAC-based Semi-Markov Decision Process (SMDP) model, where the JCAC policy is determined according to a network cost function that weights three parameters: a cost of blocking the incoming service request, a cost of accessing RAT, and the RAT energy consumption cost. Simulation results are provided, showing the benefits of our approach in terms of RAT selection and resulting network energy consumption cost .

scholarly journals An SMDP-Based initial radio access technology selection method for heterogeneous wireless networks

2021 ◽  
Author(s):  
Kazi R Islam
Keyword(s):  
Wireless Networks ◽  
Energy Consumption ◽  
Heterogeneous Wireless Networks ◽  
Technology Selection ◽  
Service Request ◽  
Radio Access Technology ◽  
Radio Access ◽  
Flexible Architecture ◽  
Consumption Cost ◽  
Rat Selection

Heterogeneous Wireless Networks (HetNets) are a class of networks that have been designed to provide an open and flexible architecture for the coexistence of various distinct Radio Access Technologies (RATs). In such networks, one of the key challenges is the selection of the best available RATs when a user is connected upon making an incoming service request. This thesis proposes a Joint Call Admission Control (JCAC) - based approach for initial RAT selection in HetNets composed of two co-located wireless networks . The RAT selection problem in such HetNet is formulated by using a JCAC-based Semi-Markov Decision Process (SMDP) model, where the JCAC policy is determined according to a network cost function that weights three parameters: a cost of blocking the incoming service request, a cost of accessing RAT, and the RAT energy consumption cost. Simulation results are provided, showing the benefits of our approach in terms of RAT selection and resulting network energy consumption cost .

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