Farkhod Alisherov

Biometric Authentication Using Infrared Imaging of Hand Vein Patterns

Hand vein patterns are unique and universal. Vein pattern is used as biometric feature in recent years. But, it is not very much popular biometric system as compared to other systems like fingerprint, iris etc, because of the higher cost. For conventional algorithm, it is necessary to use high quality images, which demand high-priced collection devices. There are two approaches for vein authentication, these are hand dorsa and hand ventral. Currently we are working on hand dorsa vein patterns. Here we are putting forward the new approach for low cost hand dorsa vein pattern acquisition using low cost device and proposing a algorithm to extract features from these low quality images.

Duplicate Address Detection Table in IPv6 Mobile Networks

In IP networks, each computer or communication equipment needs an IP address. To supply enough IP addresses, the new Internet protocol IPv6 is used in next generatoion mobile communication. Although IPv6 improves the existing IPv4 Internet protocol, Duplicate Address Detection (DAD) mechanism may consume resources and suffer from long delay. DAD is used to ensure whether the IP address is unique or not. When a mobile node performs an inter-domain handoff, it will first generate a new IP and perform a DAD procedure. The DAD procedure not only wastes time but also increases the signaling load on Internet. In this paper, the author proposes a new DAD mechanism to speed up the DAD procedure. A DAD table is created in access or mobility routers in IP networks and record all IP addresses of the area. When a new IP address needs to perform DAD, it can just search in the DAD table to confirm the uniqueness of the address.

TC-HMIPv6: A Study of HMIPV6 Handover Management for Packet Transmission Analysis

Recently, the Wireless internet user increased drastically due to the increase of concerns about the performance improvement of the mobile device and Smart phone. Wireless device users required the service which has a higher and the Mobile Communication traffic of the voice was expanded to a various multimedia services which includes various forms of voice data service- centered including wireless internet, SMS, MMS, and etc. The significant importance of Mobile IPv6 stood out as the user of the wireless internet increased and various of mobile service rapidly developed such as 3G and WIBRO. In Mobile IPv6, when the mobile device moves it possible creates a controversial issue between the base station, the packet loss according to the handover generates a delay time and it reverse the handover of packets and it’s process. In this paper, we present a novel method of solving the problems packet handover. We based our proposed packet handover scheme on the existing handover process. Our proposed scheme has several features such as a buffer installation, Look-Up and Reverse Binding in the beacon Messages, and each Access Point in the existing Hierarchical Mobile IPv6 based was shown.