Intra-domain Handoff Research Articles

HMMCCN: a hierarchical mobility management scheme for content-centric networking

Content-centric networking CCN has emerged as a promising paradigm in current internet. Owing to the interest-driven, we concern more about the content itself rather than the place it located, and therefore, CCN supports subscriber mobility natively, however, it remains a major challenge in publisher mobility. In this paper, we propose a hierarchical mobility management scheme for CCN HMMCCN which contains an overlay mapping structure to store the old-to-new name binding relationship and perform the mobility management for mobile devices. This allows for efficient simultaneous mobility and supports seamless handoff for interactive communication. The main goals of this paper are: a to propose a mobility scheme suitable for all mobile nodes in CCN, both the publishers and subscribers; b to describe the hierarchical mobility management procedure during intra-domain and inter-domain handoff; c to establish an analytical model and formulate the location update signalling cost, handoff delay; d to calculate k

Cost-effective handoff scheme based on mobility-aware dual pointer forwarding in proxy mobile IPv6 networks

In this paper, a mobility-aware Dual Pointer Forwarding scheme (mDPF) is applied in Proxy Mobile IPv6 (PMIPv6) networks. The movement of a Mobile Node (MN) is classified as intra-domain and inter-domain handoff. When the MN moves, this scheme can reduce the high signaling overhead for intra-handoff/inter-handoff, because the Local Mobility Anchor (LMA) and Mobile Access Gateway (MAG) are connected by pointer chains. In other words, a handoff is aware of low mobility between the previously attached MAG (pMAG) and newly attached MAG (nMAG), and another handoff between the previously attached LMA (pLMA) and newly attached LMA (nLMA) is aware of high mobility. Based on these mobility-aware binding updates, the overhead of the packet delivery can be reduced. Also, we analyse the binding update cost and packet delivery cost for route optimization, based on the mathematical analytic model. Analytical results show that our mDPF outperforms the PMIPv6 and the other pointer forwarding schemes, in terms of reducing the total cost of signaling.

Inter-domain handoff management based on fast handover for hierarchical MIPv6

To improve the performance of inter-domain handoff in mobile IPv6,one kind of inter-domain handoff mobility management scheme based on edge access router was introduced in the FHMIPv6 mechanism.In this method,when Mobile Node(MN) moved to the edge access router,it did intra-domain handoff and duplicated address detection for on-link care of address both in previous Mobile Anchor Point(MAP) and new MAP.It would set the new regional care of address and had the two addresses banded in the new MAP after the handoff was finished.Finally,the NS-2 simulation and comparison results show that this scheme can effectively reduce the transmission latency and packet loss rate.

HPMIPv6: Hierarchical Proxy MIPv6 in 6LoWPAN Wireless Sensor Network

Network-based mobility management protocol PMIPv6 is appropriate for for low-power characteristic 6LoWPAN Wireless Sensor Network(WSN), in which nodes is not needed to be involved into mobility management related signal interactions, which effectively reduce the energy consumption of mobile nodes. However, PMIPv6 machenism did not facilitate of 6LoWPAN feature that the nodes mobility is most of Micro-Movement. The paper presents a Hierarchical Proxy MIPv6 (HPMIPv6) which separates the management of Intra-Domain Mobility and Inter-Domain Mobility, and focuses on optimizing the process of Intra-Domain Mobility. Simulations showed that HPMIPv6 significantly increase the processing efficiency of Intra-Domain Mobility and reduce the Intra-Domain handoff delay.

DRO: domain-based route optimization scheme for nested mobile networks

The network mobility (NEMO) basic support protocol is designed to support NEMO management, and to ensure communication continuity between nodes in mobile networks. However, in nested mobile networks, NEMO suffers from the pinball routing problem, which results in long packet transmission delays. To solve the problem, we propose a domain-based route optimization (DRO) scheme that incorporates a domain-based network architecture and ad hoc routing protocols for route optimization. DRO also improves the intra-domain handoff performance, reduces the convergence time during route optimization, and avoids the out-of-sequence packet problem. A detailed performance analysis and simulations were conducted to evaluate the scheme. The results demonstrate that DRO outperforms existing mechanisms in terms of packet transmission delay (i.e., better route-optimization), intra-domain handoff latency, convergence time, and packet tunneling overhead.

Erratum to: Hybrid mobility management schemes integrating mobile IP and SIP for seamless invocation of services in All-IP network

The growing demand for seamless invocation of different multimedia services from handheld devices anytime anywhere is the main driving force for drawing attention in the area of mobility management. Although Session Initiation Protocol (SIP) based mobility solution is very efficient for real-time services, Mobile IP is required to handle mobility of the mobile node (MN) at the network layer. We have extensively studied and explored some existing mobility management methods integrating the functionalities of Mobile IP and SIP in this paper. These schemes require support of IP encapsulation at the protocol stack of correspondent node (CN). To address the above problem, we have proposed in this paper, certain modification at the IP layer of Base Station (BS) that also reduces the bandwidth consumption. Moreover, service provisioning in a continuous way in public places like airport, university campus etc., requires to integrate some micro-mobility protocol with the existing mobility management methods to reduce the handoff disruption time in case of intradomain handoff. Thus, in this paper, we have proposed two new hybrid mobility management schemes that integrate two existing Mobile IP and SIP-based schemes where the proposed modification in the IP layer of BS is incorporated separately with the micro-mobility protocol Hierarchical Mobile IP (HMIP). The numerical results show that the integration of HMIP into the existing methods reduces both the signaling cost and the delay, mainly the active handoff disruption time. Simulation results on NS-2 demonstrate the performance improvement of the proposed mobility management schemes over the existing methods in terms of handoff delay.

Analyzing EAP TLS and ERP Protocol with varying processor speed

Extensible Authentication Protocol is a generic framework supporting multiple types of authentication methods. In systems where EAP is used for authentication, it is desirable to not repeat the entire EAP exchange with another authenticator. Microsoft has developed EAP TLS which is an authentication protocol based on TLS (Transport Layer Security). Authentication server and client use TLS protocol to negotiate session key. The EAP re-authentication Protocol provides a consistent, method-independent and low-latency reauthentication. It is extension to current EAP mechanism to support intra-domain handoff authentication. This paper analyzed the security cost of EAP TLS & ERP with increased processor speed.

A Fast Multicast Handoff Based Hierarchical Mobile Multicast Architecture

Mobile communication is playing an increasing role in our lives. Mobile users expect similar kinds of applications to static ones. Multicast not only brings attractive applications, but also has the benefit of saving scarce bandwidth in wireless environment. It would be fruitful to combine these two technologies. This paper proposes a framework to provide multicast in mobile environment called Fast Multicast Handoff Based Hierarchical Mobile Multicast Architecture (FHMM). It uses a hierarchical mobile multicast architecture to isolate the local movement from outside, and improve the stability of the main multicast delivery tree. It introduces a fast multicast handoff mechanism which can reduce handoff latency and packet loss rate for inter-domain handoff and intra-domain handoff. Furthermore, FHMM is a universal solution because it can still work even if the access network does not support multicast. Simulation results show that FHMM is effective with low packet loss rate, high multicast packet

IDMP-based fast handoffs and paging in IP-based 4G mobile networks

We consider the use of our previously proposed Intra-Domain Mobility Management Protocol (IDMP) in fourth-generation mobile networks. On evaluating the heterogeneous access technologies, cellular layouts, and application characteristics of 4G environments, we realize a need to reduce both handoff latency and the frequency of mobility-related signaling. We first present IDMP's fast intradomain handoff mechanism that uses a duration-limited proactive packet multicasting solution. We quantify the expected buffering requirements of our proposed multicasting scheme for typical 4G network characteristics and compare it with alternative IP-based fast handoff solutions. We also present a paging scheme under IDMP that replicates the current cellular paging structure. Our paging mechanism supports generic paging strategies and can significantly reduce the mobility-related IP signaling load.