Mobile flow-aware networks for mobility and QoS support in the IP-based wireless networks

2020

Applied Sciences

Self Cite

Handover support is one of the important issues in mobile networks to guarantee the quality of service (QoS) requirements for mobile users. Alongside the development of network technologies, handover management to provide service continuity has been researched and applied for the Internet or cellular networks such as 3G/4G/5G. However, each network paradigm provides its own individual handover management system, even though there are different kinds of QoS requirements for various mobile services. This causes inefficient network resource utilization from the network operators’ perspectives. Therefore, this paper proposes a QoS-aware flexible mobility management scheme for software-defined networking (SDN)-based mobile networks. The proposed scheme classifies flows into four classes based on the QoS requirements of services in terms of delay and loss tolerance. According to the classified service characteristics, it provides a differential handover method for each flow class to support efficient network operation without any service degradation by interacting between the forwarding plane nodes and SDN controller. The performance analysis shows that the proposed scheme enables flexible network resource utilization, satisfying the QoS requirements for each class well compared to the conventional schemes that only consider their own individual handover procedure.

“…In our previous work [14], a QoS-based mobility management scheme was initially introduced. However, the previous work had some limitations that are highlighted as follows.…”

Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

QoS-Aware Flexible Handover Management in Software-Defined Mobile Networks

Kyung

2020

Applied Sciences

Self Cite

“…To achieve this goal of QoS provisioning mechanisms, wireless networks are aimed at supporting diverse QoS requirements and traffic characteristics [9]. The performance of the network is defined by metrics and parameters such as bandwidth, packet loss, delay, and delay variation (jitter) [1,[10][11][12], the components necessary in network architecture for providing QoS guarantees in wireless networks include traffic specification, QoS routing, call admission control, wireless channel characterization, resource reservation, and packet scheduling. The major approaches that have been considered to cope with the problem of QoS are the integrated services (IntServ) [13] and differentiated services (DiffServ) [14].…”

Section: Introductionmentioning

confidence: 99%

“…The author in [11] suggests the approach of QoS considering the Enhanced Distributed Coordination Function (EDCF) and Hybrid Coordination Function. A multi-mode handoff scheme in the work of [10] includes differentiated flow handling to support flexible handoff operation that meets the different QoS requirements of various Internet services. By using flow-aware technology, the proposed scheme alleviates the limitation of the conventional packet routing in the mobile wireless network.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Technique for Enhancing Quality of Service in Wireless Network

Alumona¹

2014

NET

This paper x-rays a hybrid technique for enhancing Quality of Service (QoS) technique, a medium access scheme that can provide virtually collision-free environment for an infrastructure high-speed wireless network. While the simple and scalable Differentiated Services (DiffServ) QoS control model is suitable for the core part of the network, a more explicit, admission and reservation based QoS mechanisms are required in the wireless access segment of the network where the resources available and the levels of traffic aggregation render the DiffServ principles less effective, Integrated services (IntServ) provides fine-grained service guarantees to individual flows. The proposed mechanism shall support both IntServ and DiffServ QoS approaches, thereby enhancing the different QoS requirements under different scenarios.

“…(Flow-based Fast Handover Mobile IPv6) [6] , 경로 최 적화 기능이 추가된 NFFHMIPv6(New FFHMIPv6) [7] , QoS(Quality of Service)별 핸드오버 방식을 달리하는 MFAN(Mobile Flow-Aware Network) [8] …”

unclassified

Distributed Mobility Management Scheme for the Tactical Network

Sun

The Journal of Korea Information and Communications Society

2014

In the conventional centralized mobility management schemes, it can lead to single points of failure, occurrence of a bottleneck, since all data and control are concentrated on the mobility anchor which is located in home network. In the current research of distributed mobility management, it is doing research into distributed mobility management which is supported by distributed mobility anchors. Such schemes do not consider a failure of the mobility anchor. However, it could be an issue under tactical environment since it occur non-service problem due to anchor movement, maintenance, failure, etc. In this paper, we proposed new DMM scheme named T-DMM(Tactical-Distributed Mobility Management) which can support handover even if mobility anchor breaks down. From the numerical analysis, we evaluate signaling cost and handover latency.※ 본 연구는 숭실대학교 지원으로 수행되었음.