The contribution of this paper is a solution to the problem of allocating terminals to the appropriate access network in locations where an operator owns multiple access networks with overlapping coverage. This problem is destined to arise since the 3GPP Evolved Packet Core (EPC) allows operators to efficiently manage multiple access networks under one core network. The underlying assumption of...

Packet classification is crucial to the implementation of advanced network services that require the capability to distinguish traffic in different flows, such as access control in firewalls and protocol analysis in intrusion detection systems. This paper proposes a novel packet classification algorithm optimized for multi-core network processors. The proposed algorithm, AggreCuts, has an expli...

As a variety of wireless access technologies have emerged and 3G systems are evolving towards “all-IP” where both voice and data services are converged into IP core networks, IP mobility has become increasingly important. IP micro-mobility protocols have been proposed for managing local mobility. They have a hierarchical network structure, which contributes to decreased network overheads by min...

In order to improve the efficiency of maintaining packet core network and test the network elements, a simulation testing system for GPRS and UMTS 3G packet core network is proposed. The system can simultaneously simulate several network elements to connect with SGSN, GGSN, WAP gateway respectively for testing. In the system, multiple UEs can be simulated, and multiple applications can run on e...

The current trend in computer processors is towards multi-core systems. Although operating systems were adapted a long time ago to support multi-processing, kernel network layers have not yet taken advantage of this new technology. The result is that packet capture, the cornerstone of every network monitoring application, is not efficient on modern systems and its performance gets worse with an...

Abstract — End-to-end throughput guarantee is an important service semantics that network providers would like to offer to their customers. A network provider can offer such service semantics by deploying a network where each router employs a fair packet scheduling algorithm. Unfortunately, these scheduling algorithms require every router to maintain per-flow state and perform perpacket flow cl...

Differentiated Services (DiffServ) has been standardized by the IETF and is considered as a promising IP QoS solution due to its scalability and ease of implementation. In this paper, we present a novel framework for IP Differentiated Services (DiffServ) over optical burst switching (OBS), namely, DS-OBS. We present the network architecture, functional model of edge nodes and core nodes, the co...

The General Packet Radio Service (GPRS) offers performance guaranteed packet data services to mobile users over wireless frequency-division duplex links with time division multiple access, and core packet data networks. This paper presents a dynamic adaptive guaranteed Quality-of-Service (QoS) provisioning scheme over GPRS wireless mobile links by proposing a guaranteed QoS media access control...

The General Packet Radio Service (GPRS) offers performance guaranteed packet data services to mobile users over wireless frequency-division duplex links with time division multiple access, and core packet data networks. This paper presents a dynamic adaptive guaranteed quality-of-service (QoS) provisioning scheme over GPRS wireless mobile links by proposing a guaranteed QoS media access control...