scholarly journals Advanced Mobility Handover for Mobile IPv6 Based Wireless Networks

2014 ◽  
Vol 2014 ◽  
pp. 1-20 ◽  
Author(s):  
Ali Safa Sadiq ◽  
Norsheila Binti Fisal ◽  
Kayhan Zrar Ghafoor ◽  
Jaime Lloret

We propose an Advanced Mobility Handover scheme (AMH) in this paper for seamless mobility in MIPv6-based wireless networks. In the proposed scheme, the mobile node utilizes a unique home IPv6 address developed to maintain communication with other corresponding nodes without a care-of-address during the roaming process. The IPv6 address for each MN during the first round of AMH process is uniquely identified by HA using the developed MN-ID field as a global permanent, which is identifying uniquely the IPv6 address of MN. Moreover, a temporary MN-ID is generated by access point each time an MN is associated with a particular AP and temporarily saved in a developed table inside the AP. When employing the AMH scheme, the handover process in the network layer is performed prior to its default time. That is, the mobility handover process in the network layer is tackled by a trigger developed AMH message to the next access point. Thus, a mobile node keeps communicating with the current access point while the network layer handover is executed by the next access point. The mathematical analyses and simulation results show that the proposed scheme performs better as compared with the existing approaches.

2013 ◽  
Vol 684 ◽  
pp. 535-538 ◽  
Author(s):  
Ji Hoon Lee ◽  
Eugene Rhee

Seamless connectivity in wireless networks is critical for various applications. So, a dynamic beamforming antenna is utilized to improve wireless connectivity. However, using a dynamic beam steering scheme has a key problem when processing a handover between access points (APs). This paper proposed a dynamic beamforming handover (DBH) scheme using the relationship between beam pattern and topology information. Each AP preconfigures the neighbor list and tries to meet what candidate APs are available during handover process. Performance evaluations indicate that the handover latency can be significantly reduced by applying the proposed scheme and the network throughput can be enhanced.


Author(s):  
Farhana Ferdusi Liza ◽  
Khan Md Al-Farabi

This paper proposes an efficient low update latency handover scheme for Proxy Mobile IPv6 (PMIPv6)-a Network-based mobility management protocol. The major aspect that introduces high latency during Mobile Node (MN) handover between Mobile Access gateways (MAGs) of the same PMIPv6 domain has been analyzed. The analysis included MN profile acquirement by MAG agent and handover process between MAG agents. From this analysis, an improved solution that optimizes the handover delay has been provided. The solution has been verified by simulation in Network Simulator 2(NS2). Keywords: PMIPv6; Handover Delay; NS2; FMIPv6; MIPv6; PMIPv6_Ex DOI: http://dx.doi.org/10.3329/diujst.v6i1.9328 DIUJST 2011; 6(1): 9-16


Author(s):  
Omar Raoof ◽  
Hamed Al-Raweshidy

This chapter proposes a novel game-based green interface/network selection mechanism that is an extension to the multi-interface fast-handover mobile IPv6 protocol and works when the mobile node has more than one wireless interface. The mechanism controls the handover decision process by deciding whether a handover is needed or not and helps the node to choose the right access point at the right time. Additionally, the mechanism switches the mobile nodes interfaces “ON” and “OFF” when needed to control the mobile node’s energy consumption and improves the handover latency.


Author(s):  
Hewei Yu ◽  
Ziliang Li

This article proposes an enhanced handover scheme of Proxy Mobile IPv6 (PMIPv6) which can avoid duplication authentication. In traditional handover scheme, a Mobile Node (MN) needs an authentication procedure by AAA (Authentication, Authorization and Accounting) server while it enters a PMIPv6 domain. However, when an MN moves to a new subnet in the same domain, it still needs another authentication procedure, which would increase handover latency. In the proposed scheme, an MN only needs to be authenticated once while it enters a PMIPv6 domain, and a Mobile Access Gateway (MAG) that an MN is attached to will send the authentication information to the New MAG (NMAG) which MN will access to before the MN's handover. So that MN can skip the second authentication. The authors build a test-bed and have done some tests. Result shows that this scheme has got improvement in decreasing handover latency.


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