Radio resource management scheme for heterogeneous wireless networks based on access proportion optimization

Shi, Zheng; Zhu, Qi

doi:10.1109/jcn.2013.000092

Cited by 4 publications

(3 citation statements)

References 18 publications

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“…To acquire full benefit of the use of HetNet, one of the mandatory requirements is the design of an appropriate radio resource management (RRM) for such network. This task is difficult due to the fact that wireless networks that composed the HetNet may vary in terms of network coverage, access cost, data transmission rate, service class support [13], to name a few criteria. For this reason, traditional RRM schemes for wireless networks may no longer be applied to HetNets.…”

Section: Radio Resource Management In Heterogeneous Wireless Networkmentioning

confidence: 99%

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

Islam¹

2021

Preprint

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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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Section: Radio Resource Management In Heterogeneous Wireless Networkmentioning

confidence: 99%

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

Islam¹

2021

Preprint

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“…In [42], the blocking probability and nonblocking probability for the th AP are defined as (12) where ( ) denotes the fact that the blocking probability depends on the ratio of service arriving and leaving rate in (10). Then, the average user number can be rewritten as…”

Section: Wifi Networkmentioning

confidence: 99%

Congestion‐Optimal WiFi Offloading with User Mobility Management in Smart Communications

Liu

Zhu

Tan

et al. 2018

Wireless Communications and Mobile Computing

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We study the WiFi offloading problem in smart communications and adaptively seek for the optimal offloading strategies with the consideration of the mobility management and the dynamical nature of network state. With users mobility management, we formulate the offloading ratio optimization problem based on Markov process. Then, we propose a novel Congestion-Optimal WiFi Offloading (COWO) algorithm based on subgradient method, which aims to obtain the optimal offloading ratio for each access point (AP) to maximize the throughput and minimize the network congestion. Due to the computational complexity of subgradient method, we further improve the COWO algorithm by the equivalent transformation. By viewing all the APs as one virtual WiFi network, we try to optimize the identical offloading ratio for virtual WiFi network and develop a Virtualized Congestion-Optimal WiFi Offloading (VCOWO) algorithm with lower complexity. Under the equivalent conditions, the performance of the VCOWO algorithm could well approximate the optimal results obtained by the COWO algorithm. It is found that the VCOWO algorithm could obtain the upper bound of multiple APs WiFi offloading performance. Moreover, we investigate the impacts of user mobility on the WiFi offloading performance. Simulation results show that the proposed algorithm could achieve higher throughput with lower network congestion compared with other current offloading schemes.

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“…The first type is the resource allocation algorithm based on user utility optimization which always selects the service parameters related to QoS of subscriber services to evaluate network performance, such as received signal intensity, bit error rate, access bandwidth, price and etc, and allocates resources on the premise of optimal system user utility [14,15]; The second type is the algorithm based on system utility maximization which maximizes system interests through the allocation and distributed plans of services and the cooperative transmission service flow between multiple networks, such as power saving maximization, network system throughput maximization and network capacity utilization rate maximization; The third type is the algorithm based on fairness which quantizes the fairness of resource allocation through standardized formula and guarantees the fairness for different users, services and networks through mechanism, but other algorithms always cause damage to part of users' fairness in improving system throughput and reducing time delay.…”

Section: Correlation Research Access Selection and Admission Control mentioning

confidence: 99%

A Survey of the Key Technologies of Heterogeneous Wireless Converged Network

2015

2015 the 5th International Workshop on Computer Science and Engineering-Information Processing and Control Engineering

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Heterogeneous Wireless Converged Networks (HWCN) are expected to be the trends of next generation wireless network. It will pose great impacts on way of communication. HWCN is a brand new research area and many problems still need to be solved. Firstly, the background and development of HWCN are summarized, and its challenges and analyzed. Then from the perspective of network architecture, access selection algorithms, resource management algorithms and vertical handover strategies are discussed. Finally, the next step research suggestions of load balancing, green communications and intelligent characteristics are also proposed.

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Radio resource management scheme for heterogeneous wireless networks based on access proportion optimization

Cited by 4 publications

References 18 publications

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

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

Congestion‐Optimal WiFi Offloading with User Mobility Management in Smart Communications

A Survey of the Key Technologies of Heterogeneous Wireless Converged Network

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