In Vivo Evaluation of the Secure Opportunistic Schemes Middleware using a Delay Tolerant Social Network

Over the past decade, online social networks (OSNs) such as Twitter and Facebook have thrived and experienced rapid growth to over 1 billion users. A major evolution would be to leverage the characteristics of OSNs to evaluate the effectiveness of the many routing schemes developed by the research community in real-world scenarios. In this paper, we showcase the Secure Opportunistic Schemes (SOS) middleware which allows different routing schemes to be easily implemented relieving the burden of security and connection establishment. The feasibility of creating a delay tolerant social network is demonstrated by using SOS to power AlleyOop Social, a secure delay tolerant networking research platform that serves as a real-life mobile social networking application for iOS devices. SOS and AlleyOop Social allow users to interact, publish messages, and discover others that share common interests in an intermittent network using Bluetooth, peer-to-peer WiFi, and infrastructure WiFi.Comment: 6 pages, 4 figures, accepted in ICDCS 2017. arXiv admin note: text overlap with arXiv:1702.0565

Handoff techniques for next generation wireless multimedia systems

Ph.D.Ian F. Akyildi

Mobility Management Protocols for Wireless ATM Networks

This paper presents a survey of mobility management protocols for Wireless Asynchronous Transfer Mode (WATM) networks. Basic architectural assumptions for WATM networks are presented, followed by an overview of location registration, call delivery, and terminal paging techniques. Next, a collection of protocols for handoff connection re-routing is examined. The paper concludes with a discussion of standardization activity within the ATM Forum. Key Words: ATM Forum, Handoff, Location Management, Mobility Management, Wireless ATM 1 1 Introduction Wireless networks have evolved beyond the well-known and widely used voice and paging services. The commercial success of cellular telephony has created a great demand for mobile communications and computing, along with an even greater financial return [23]. On the other hand, wireline telephony networks have evolved to integrated services networks that can support a variety of traffic types through reliable transport and service guarantees...

Multiservice Vertical Handoff Decision Algorithms

Future wireless networks must be able to coordinate services within a diverse-network environment. One of the challenging problems for coordination is vertical handoff, which is the decision for a mobile node to handoff between different types of networks. While traditional handoff is based on received signal strength comparisons, vertical handoff must evaluate additional factors, such as monetary cost, offered services, network conditions, and user preferences. In this paper, several optimizations are proposed for the execution of vertical handoff decision algorithms, with the goal of maximizing the quality of service experienced by each user. First, the concept of policy-based handoffs is discussed. Then, a multiservice vertical handoff decision algorithm (MUSE-VDA) and cost function are introduced to judge target networks based on a variety of user- and network-valued metrics. Finally, a performance analysis demonstrates that significant gains in the ability to satisfy user requests for multiple simultaneous services and a more efficient use of resources can be achieved from the MUSE-VDA optimizations.</p