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In this paper, we propose an ILP (Integer Linear Programming) based solution for Diverse Path Routing with Node Inclusion (DPRNI). First, DPRNI is introduced as a relevant routing problem in hierarchical traffic grooming of clustered networks where the interconnection between clusters is allowed via predefined hubs only. Then an ILP based solution is proposed, which guarantees the cost optimality...
When dimensioning GMPLS-controlled NG-SDH networks several SDH and GMPLS specific requirements must be fulfilled. In SDH there are two different ways for concatenating VC-4 containers, which determine the packing rules of the service inside a frame. GMPLS handles each concatenated SDH connection as a single GMPLS service, thus it has to be placed entirely into one STM frame. To add a new service to...
In order to ensure long-term competitiveness of 3G technology, a new study item has been started by 3GPP to define the long term evolution (LTE) of 3G. The scope of the LTE concept is to improve the system performance in terms of data rate, throughput, latency, coverage and cost. LTE introduces a pure packet based architecture, with distributed mobility management, where active mode handover decisions...
High speed downlink packet access (HSDPA) is providing increased user data rate by introducing additional functionalities at the Node B. To achieve optimal radio resource utilization HSDPA flow control is applied to control the amount of data sent from the radio network controller (RNC) to the Node B over the Iub transport network. HSDPA flow control is not taking into account the available transport...
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