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Next generation wireless systems represent an heterogeneous environment encompassing different radio access network technologies (RATs) that differ in bandwidth, latency or cost. At the same time, mobile devices can now support multiple radio network interfaces and are therefore able to select from various available multiple heterogeneous access networks the most appropriate one in order to satisfy...
Nowadays, Connection Admission Control (CAC) reward optimization for a service with different priority classes in a homogeneous wireless network has become one of the most important issues. In this paper, a novel expansion for the Guard Channel Based Incremental and Dynamic Optimization algorithm is presented. GUIDO will be used to analyze a reward scheme that correlates service demand with weights...
In this paper, we proposed a dynamic network pricing scheme, which considers both Call Admission Control (CAC) and Network Congestion Control (NCC), denoted as Contract Binded CAC {CBCAC). CAC calculates the optimal arrival rates and limits the admitted calls at every time. When the network is underlized, all the users are charged for service consumption normally. But if it is congested, they are...
Supporting the diverse QoS requirements of multimedia applications is an essential requirement for broadband wireless access (BWA) networks. Due to the projected dynamics in traffic patterns, more capable resource management functionalities are needed. We propose a game-theoretic, congestion-based pricing scheduler that incorporates two sub-schemes: a bandwidth provisioning sub-scheme to address the...
In multiservice wireless networks, Call Admission Control (CAC) is essential to assure the quality of service requirements of the supported traffic. Call requests are usually classified into two different types: narrow-band and wide-band calls. In this paper, the probabilistic CAC scheme employed is extended through a game theoretic framework for resource allocation and price bargaining for the required...
Next generation wireless networks (NGWN) will be heterogeneous, comprising a number of radio access technologies (RATs) coexisting in the same geographical area. In NGWN, a joint call admission control (JCAC) algorithm is needed to select the most appropriate RAT for each incoming call. The JCAC algorithm must be user-centric (i.e., consider user preferences in making RAT selection decisions) in order...
As the number of wireless network providers is constantly growing, the competition among them is about to increase as well. In future environments, where many wireless providers will be present as is the case of hotspot areas, it is realistic to assume that the subscription will be session-oriented, meaning that the users may start one session in one provider and another session in a different provider...
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