This research paper from University of Rochester determines the staffing levels and referral rates that minimize the sum of staffing, customer waiting, and mistreatment costs and also compares the optimal gatekeeper system (a two-tier system) with a system staffed with only experts. When waiting costs are high, a direct-access system is preferred unless the gatekeepers have a high skill level. The paper also shows that an easily computed referral rate from a deterministic system closely approximates the optimal referral rate.
Key management for anonymous communication in mobile ad hoc networks is a critical but unsolved problem. Many current anonymous mobile ad hoc routing protocols assume that mobile users share pair wise secrets before they start an anonymous communication session. This assumption is impractical for many ad hoc scenarios where pair wise shared keys are difficult to be set up in advance. Public-key based solution, such as identity-based cryptographic solutions are suggested for anonymous communications. This white paper presents pairing-based encryption/ decryption, key exchange, blind certificate and revocation solutions for unidentified communications.
Context-aware systems use sensors in order to analyze their environment and to adapt their behavior. Authors have designed and developed Sensation, an open and generic service-oriented platform, which provides powerful, yet easy-to-use, tools to software developers who want to develop context-aware, sensor-based infrastructures. The service-oriented paradigm of Sensation enables standardized communication within individual infrastructures, between infrastructures and their sensors, but also among distributed infrastructures. This paper presents the concept and the implementation of the service-oriented architecture of the Sensation platform. Finally, some conclusions are drawn and some ideas for further development of the Sensation concepts and implementation sketched.