Radio-Resource Management and Access-Control Mechanism Based on a Novel Economic Model in Heterogeneous Wireless Networks

In this paper, we first investigate the radio-resource management and network-selection schemes in heterogeneous wireless networks. Then, we propose a novel economic model to allocate radio resources for both code-division multiple-access (CDMA) networks and wireless local area networks (WLANs). Par...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2010-07, Vol.59 (6), p.3047-3056
Main Authors: Pei, Xuebing, Jiang, Tao, Qu, Daiming, Zhu, Guangxi, Liu, Jian
Format: Article
Language:English
Subjects:
Access control
Bandwidth
Closed-form solution
Code division multiple access
economic model
Economics
heterogeneous networks
Local area networks
Management
Mathematical models
Multiaccess communication
Networks
Optimization
Pricing
Radio control
Radio spectrum management
radio-resource management (RRM)
Radios
Resource management
signal quality
Studies
Throughput
Wireless communication
Wireless LAN
Wireless networks
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Summary:In this paper, we first investigate the radio-resource management and network-selection schemes in heterogeneous wireless networks. Then, we propose a novel economic model to allocate radio resources for both code-division multiple-access (CDMA) networks and wireless local area networks (WLANs). Particularly, the resource-usage constraint is deduced in the CDMA uplink, where the radio resource is allocated with the aim of maximizing the total welfare of the CDMA network while satisfying the signal quality requirement of all mobile users. Moreover, we formulate and solve the optimization problem in the WLAN to maximize the network welfare when the maximum throughput in the WLAN is achieved by controlling the optimum collision probability. An approximated closed-form expression for the network welfare is also given when the assigned bandwidth for each user is close to the bandwidth request. Finally, we design the joint access-control mechanism under different load conditions in coupled heterogeneous networks. Numerical results show that the proposed scheme can achieve approximately 20% more users and 10% more network social welfare, which outperforms the utility-function-based access selection and single network access-control mechanisms in the literature for heterogeneous wireless networks.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2010.2049039