In mobile IPv6 network, AAA mechanism is necessary for administration and security because roaming nodes are permitted and become majority. However, disharmonies are exposed when MIPv6 meets AAA. On one hand, AAA procedures increase the latency of MIPv6 handover by inserting several message round trips before mobile registration. Thus the handover performance is reduced. On the other hand, AAA ...

PURPOSE To examine the association of personal values, the built environment, and auto availability with walking for transportation. SETTING Participants were drawn from 11 U.S. metropolitan areas with good transit services. SUBJECTS 865 adults who had recently made or were contemplating making a residential move. MEASURES Respondents reported if walking was their primary mode for nine tr...

Recent advances in the design and fabrication techniques of microelectronic devices have resulted in tremendous improvements in system functionality, performance and power consumption. These improvements have been fueled by tremendous growth in the semiconductor industry and increasing demand for hand-held and wireless electronic systems. However, these same advances also impact the stability, ...

Mobile Cloud Computing has brought the IT industry to a new level by providing an innovative technique with the help of which one can access anything, anytime from anywhere. It is an industry buzz word since 2009 and a relatively new concept that combines cloud computing, mobile computing and wireless networking. This technology has uplifted the usability experience of mobile users. Over the pa...

AAA servers are in use within the Internet today to provide authentication and authorization services for dial-up computers. Such services are likely to be equally valuable for mobile nodes using Mobile IP when the nodes are attempting to connect to foreign domains with AAA servers. AAA servers today identify clients by using the Network Access Identifier (NAI). Our proposal defines a way for t...

This paper presents a novel approach to integrate Wireless Local Area Networks (WLANs) and Mobile Ad-hoc Networks (MANETs) to the Internet Protocol version 6 (IPv6) based Internet. In the proposed network architecture, the mobiles, connected as a MANET, employ the Optimized Link State Routing (OLSR) protocol for routing within the MANET. Gateways are used to connect MANETs to the Internet. This...

A single downward-looking camera can be used as a high precision visual odometry sensor in a wide range of real-world mobile robotics applications. In particular, a simple and computationally efficient dense alignment approach can take full advantage of the local planarity of floor surfaces to make use of the whole texture available rather than sparse feature points. In this paper we detailed p...

Mobile software industry is suffering from the illegal usage of the software. PKI will not be a solution for small software distribution. We introduce a lightweight but safe method to prevent illegal usage of mobile phone software, by instrumentation on binary for device-identity check. The method is now being implemented on a presumable code on demand (COD) server for WIPI (Wireless Internet P...