A Proximity-aware Approach for Discovering Adaptation Services

It is paramount to provide seamless and ubiquitous access to rich contents available online to interested users via a wide range of devices with varied characteristics. Recently, a service-oriented content adaptation scheme has emerged to address this content-device mismatch problem. In this scheme, content adaptation functions are provided as services by multiple providers. This elevates service discovery as an important problem. As most of the clients are using battery-powered devices, discovering closer providers are essential to reduce the accumulated time of receiving adapted content version. This study proposed a proximity-aware service discovery to address closer service discovery issue. The proposed mechanism uses estimation method to find closer service providers. The performance analysis verifies that our approach guarantees closer providers with a high probability, while at the same time significantly reduced the overhead up to one magnitude compared with the baseline brute force method.