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This paper presents a cooperative joint radio resource management (JRRM) mechanism for efficient integration of different radio access technologies (RATs). Increasing number of wireless service providers (operators) are competing to expand their coverage and attract more users, and the number of wireless service users are rapidly growing. This highlights the need to design an efficient scalable radio...
The heterogeneity of today's wireless access possibilities imposes challenges for efficient access and resource management across different radio access technologies (RATs). With upcoming 4G technologies and emerging mobile cloud computing, concepts such as fixed mobile convergence are driving the evolution toward comprehensive network management approaches. The proposed context-enhanced heterogeneous...
In order to support the conceptual development of Radio Access Technology (RAT) selection algorithms, the theory of Markov model has been used. Performance metrics can be derived from the steady state probabilities of a Markov model. This paper extends a User Level Markov model for a three colocated RATs system from existing two co-located RATs Markov models. The service based RAT selection algorithm...
Adaptive radio resource management policy aware of the demand for wireless services is termed dynamic spectrum access (DSA). In order to evaluate the effectiveness of DSA, dynamics of the demand should be considered. In the present paper, dynamics of the spectrum market, which is a way to realize DSA, are evaluated from the economic perspective. Modeling the spectrum market system by using game theory,...
In this paper, we present a method to optimally manage the access slots for the initial ranging contention process in IEEE802.16e air interface. In conventional method, the number of the initial access slot is fixed to a large number in common circumstance. The reason using the static large slot is to reduce the initial access collisions by slot contentions of the mobile terminals. Therefore the usage...
In this paper, we examine the use of pricing for distributed, incentive-compatible and socially optimal resource allocation in a QoS-differentiated random-access wireless network. We argue that QoS mechanisms in wireless networks are susceptible to misuse by self-interested users. We first present a simple pricing scheme that leads to social optimality (i.e., achieves QoS-differentiated proportional...
'The unstoppable desire and need for ubiquitous wireless access and high quality provision of pioneer multimedia brought about a remarkable proliferation of wireless networks and services, reflected in the BeyondSG (B3G) world. In such a versatile environment, legacy management functionalities are hindered by high spatial and temporal context variations. The idea of policy based management that governs...
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