Tunnel-Free Distributed Mobility Management (DMM) Support Protocol for Future Mobile Networks

The number of wireless services and devices have remarkably increased, especially since the introduction of smart phones. The population of mobile nodes (MNs) is now exceeding the traditional non-mobile nodes. Mobility is a key factor in mobile core networks as it is responsible for providing continuous communication when a MN is on the move. Currently, a centralized mobile core network architecture is implemented, which has certain limitations. Distributed mobility management (DMM) is often seen as a solution to the problems associated with centralized mobility management (CMM). Address and tunneling management are big challenges for current DMM-based mobility protocols. Keeping in mind the current advancement of mobile network architecture, this paper proposes a novel tunnel-free distributed mobility management support protocol intended for such an evolution. In addition, the performance of the existing DMM IPv6 mobility management protocols in the context of handover latency, handover blocking probability, and data packet loss is analyzed and compared to the proposed framework. The performance analyses show that the proposed tunnel-free method can reduce about 12% of handover latency, 71% of handover blocking probability, and 82% of data packet loss.

Reducing Handover Latency of PMIPv6 using Extended Open-Flow Technique

This proposed technique adapts PMIPv6 to the Extended Open-Flow architecture, and this technique is referred to as the Extended Open-Flow Technique of PMIPv6 (EOFT-PMIPv6). This method isolates the versatility capacities from the PMIPv6 segments, for example, the Local Mobility Anchor (LMA) and Mobile Access Gateway (MAG), and recreates the parts to take points of interest of the Open-Flow design. The parts that contain the LMA work set the stream table of the switches situated in the way as the controller of Open-Flow, and as such, the area of the MN is kept up. The entrance switches with the MAG capacities tell the connection of a MN and introduce the portability related motioning of MAG. The fundamental commitments of this proposed strategy are twofold: 1) isolating the control and data planes and 2) reducing handover latency

Handover Algorithm to Avoid Duplication Authentication Within or Between Proxy Mobile IPv6 Domains

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.

Network Quality Assesment of Wireless Communication Based on Mobility Issue

Up-gradation of wireless communication system is mainly based on some critical attributes like speed, coverage, interoperability, reliability, cost, security etc. This paper looks potential approaches to network quality analysis based on mobility. In this paper, focus is given to determine handover latency, vital property of mobility. This paper presents simulation to investigate handover effects-handover latency in homogeneous and heterogeneous environment using network simulator NCTUns 6.0 and simulator version 2 (NS-2) respectively for different generations of wireless communication. Also simulation is performed to find out the handover latency with respect to mobile node’s speed and then the results are compared with each other for performance analysis. The obtained results show that advanced generations of wireless communication provides low handover latency as well as higher mobility support which leads to better network performance and seamless connectivity.

A Mobility Link Service for NDN Consumer Mobility

Named Data Networking (NDN) supports the consumer mobility service by letting a consumer reissue an interest. This method is straightforward, but it may cause several drawbacks, including unnecessary handover overhead and long handover delay. We concentrate on the NDN communication model in which the pair of an interest and a data packet is considered a single communication working set (i.e., transaction unit). In this respect, reissuing an interest means creating a new transaction due to the connection damaged by the movement of a consumer. It makes all states of the current transaction useless, and this is where the drawbacks arise. In order to enhance the consumer mobility service, we propose Mobility Link Service (MLS) operated in NDN face which is responsible for management of a connection for a transaction. MLS reuses the existing states of a transaction by establishing a connection for the transaction instead of creating a new one. In addition, MLS in NDN face makes consumer mobility service transparent to the NDN forwarding plane. Therefore, the consumer mobility service and the NDN architecture can evolve independently. The performance evaluation shows that MLS reduces the amount of retransmitted data and handover latency compared with the existing NDN mobility solution.

Throughput and Handover Latency Evaluation for Multicast Proxy Mobile IPV6

The objective of this paper is to present performance analysis of a new enhanced mobile multicast network mobility management scheme. The initial developed network mobility management called Proxy Mobile IPv6 (PMIPv6) is based on unicast network support. This paper enabled multicast support in network mobility management and named it as MPMIPv6. Additionally this enhancement also provides better network performance with the new context transfer operations and fast reroute operations. In brief, this paper also describes other current mobile multicast schemes. The new scheme is evaluated using mathematical analysis and NS3.19 simulator. Theoretically this scheme reduces service recovery time, total signalling cost, handover latency, and packet loss for multicast communication. However for this paper, the analysed parameters are throughput and handover latency. Both mathematical and simulation results exhibit better network performance for multicast environment compared to the standard benchmark scheme.