Absrruct -Software development for wireless sensor networks requires novel programming paradigms and technologies. This article describes the concept of a new service oriented soilware architecture for mobile sensor network. With thi5 architectue, a flexible, scalable programming of applications based on an adaptive middleware is possible. The middleware supports mechanisms for cooperative data mining, self-organization, networking, and energy optimization to build higher-level service structures. The purpose of our research activities is the development of a framework, which radically simplifies the development of software for sensor network applications.
Absrrad-Key challenges in wireless mobile ad hoc networks are computational resource constraints, power limitatious, and efficient service discovery techniques. The short range radio network fechnology Bluetooth suffers from long service discovery delays and high power consumption due to necessary connection establishment between discovering and discovered entity. For improving the efficiency of service discovery in Bluetwth networks we propose two new approdches. By leveraging the implicit broadcast capability of the Bluetooth inquiry procedure, we significantly reduce the service discovery time and hence lower the power consumption. Moreover, we enable the integration of resource limited devices which are incapable of taking part in service discovery themselves. Based on a performance evaluation and a comparison with the legacy Bluetooth Service Discovery Protocol (SDP), we present the benefits of our new approaches.
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