This paper presents a general traffic separation approach to transmit HSPA traffic in the existing ATM-based UMTS network, together with Release 99 (R99) traffic. The traffic separation technique enables QoS differentiations of HSPA and R99 traffic, while at the same time aims to achieve a maximum utilization of the transport resources in the radio access network. The potential benefit of apply...

This paper presents a generic radio access network cost assessment and optimisation methodology, allowing a performance-vs.-cost assessment of different deployment options considered in beyond-3G networks as, e.g., the WINNER system. Cost assessments are based on an identification and classification of relevant cost components of advanced radio access network deployments, including radio access...

In this work, we investigate service differentiation under IP for the transport of both real-time and non real-time user traffic in the UMTS Terrestrial Radio Access Network (UTRAN). Therein, stringent delay bounds are to be met for both types of traffic, albeit tighter for the voice traffic. For the sake of simplicity, we suggest, model and analyze the use of priority queuing, as an efficient ...

In future generations of wireless networks, it is expected that different users with various multi-homed personal wireless devices will have the option of accessing their desired services via different available radio access networks. Given the variability of the radio environment properties and user mobility, the availability and characteristics of an access network will change in time and are...

This paper firstly gives a detail analysis on the security problems faced in cognitive radio network, and introduces the basic issues about cognitive radio network. Then, according to the differences between cognitive radio network and existing wireless network, it analyses and discusses the dynamic spectrum access security and artificial intelligence. Finally, it draws a conclusion to security...

The multi-radio access architecture within the ambient network concept opens up opportunities for new business roles within the mobile and wireless domain. The new business roles take advantage of the control plane functionality that enables cost efficient connectivity over heterogeneous radio access technologies. Index Terms — Multi Radio Access, cost efficient, new business roles

The performance of a mobile network is essentially based on the capacity of its radio access technology. A mobile network is spatially and functionally distributed. Its subsystems are in constant interaction with each other and with their geographic environment. Finding an appropriate approach to evaluate the capacity of a radio access technology with respect to a wide range of parameters (radi...

In this paper, we study WSN design, as a multi-objective optimization problem using GA technique. We study the effects of GA parameters including population size, selection and crossover method and mutation probability on the design. Choosing suitable parameters is a trade-off between different network criteria and characteristics. Type of deployment, effect of network size, radio communication...