The proliferation of mobiles devices, application sprawl, and the ever-increasing data volume generates significant stress on cellular networks and particularly on the cellular core, also known as the Evolved Packet Core (EPC), i.e., the cellular network component residing between the radio access network and the Internet. This is further exacerbated by the deployment of hardware appliances for...

There is an increasing demand of multimedia and location aware services when an accurate and immediate response is needed, for example in the case of emergency services. In parallel, the technology has evolved from Circuit Switch (CS) to Packet Switch (PS) networks requiring backwards compatibility. As a result the emergency services support for NGNs, in particular for IMS, is being standardize...

This paper reports on the quality of service (QoS) mapping mechanisms for converged OFDMA-PON and LTE networks to satisfy the stringent QoS requirements. Various options for exhibiting QoS mapping between the LTE bearers and optical OFDMA-PON queues have been presented. These include, wireless classes forwarded directly to one priority optical queue (so called non-mapping mechanism), 1:1 mappin...

Flexible management is one of the key components of next-generation 5G networks. Currently, many approaches focus on network functionality (services) and translate it afterward into end-user requirements, which slightly constrains the flexibility for both management and end users. Furthermore, moving the intelligence of the network towards the edge (i.e. the users) has already proven its benefi...

The main objective of this thesis is to propose automatic planning tools for the planning problem of Long Term Evolution (LTE) networks based on realistic traffic. More precisely, a set of equations is first proposed to generate realistic traffic profile while considering as many practical aspects as possible. Then, a mathematical model is created to solve the planning problem of the evolved pa...

Optical switching will enable core Internet packet switching to scale with future transmission rate increases. Currently proposed optical ATM switches do not allow packet reassembly, which is necessary for packet level forwarding. This results in the requirement to create end to end ATM virtual connections for flows even if they contain only one packet. In electronically switched networks MPOA ...

WiMAX is a well-known broadband wireless access technology that supports multimedia transmission users. IEEE 802.16e has evolved into five quality of service (QoS) scheduling types for WiMAX uplink transmissions, but downlink transmission types have not yet been defined. To assist in this task, and to support efficient base station packet scheduling that takes QoS into account, I propose an ada...

Packet switches switch data packets from a given ingress port to an egress port determined by information in the packet header. Asynchronous packet switches (Figure 1) don’t assume synchronisation between arrivals of packets on different ingress ports, and don’t attempt to synchronise the forwarding of packets to the egress ports. This type of packet switch is being investigated for high-speed ...