Mobile Web Services for Distributed In-Network Communications and Computations - OVERVIEW Motivation Typically, a WSN performs distributed network computations to meet its specific needs. Complex network computations demand high processing power within a sensor node. Collector nodes introduced in [1] are better equipped in terms of processing power and battery consumption than ordinary sensors. High-valued distributed in-network computations can be achieved by collector nodes‘ collaboration . Collector nodes represent local neighborhood of sensors to higher hierarchy of WSN. Sensor and Collector nodes could be mobile terminals [1] Giridhar, A. Kumar, P.R., Toward a theory of in-network computation in wireless sensor networks , Communications Magazine, IEEE , Volume 44, Issue 4, p. 98- 107, ISSN: 0163-6804, 2006 Proposed Solution Collector nodes are proposed to apply Mobile Web Services to perform local computations . Cooperation among the collector nodes would initiate higher-valued Mobile Web Services for complex distributed in-network computations. Study new fields in the area of Mobile Web Services to identify realistic business and application scenarios . Scientific Challenges Network computations in wireless networks. Organization of cooperative collector nodes owning Mobile Web Services. Gain a high-valued network based on Mobile Web Services. Issues: Low processing power, Battery consumption, Network performance Prof. Dr.-Ing. B. Walke, Fahad Aijaz Chair of Communication Networks

Motivation

Typically, a WSN performs distributed network computations to meet its specific needs.

Complex network computations demand high processing power within a sensor node.

Collector nodes introduced in [1] are better equipped in terms of processing power and battery consumption than ordinary sensors.

High-valued distributed in-network computations can be achieved by collector nodes‘ collaboration .

Collector nodes represent local neighborhood of sensors to higher hierarchy of WSN.

Proposed Solution

Collector nodes are proposed to apply Mobile Web Services to perform local computations .

Cooperation among the collector nodes would initiate higher-valued Mobile Web Services for complex distributed in-network computations.

Study new fields in the area of Mobile Web Services to identify realistic business and application scenarios .

Scientific Challenges

Network computations in wireless networks.

Organization of cooperative collector nodes owning Mobile Web Services.

Gain a high-valued network based on Mobile Web Services.

Research Outcomes What‘s New Transition from tranditional short-lived (synchronous) to long-lived (asynchronous) highly dynamic Mobile Web Services. Mobile Web Services framework for development and deployment of P2P asynchronous time-independent services . Supports Polling and Callback interaction techniques. Dynamic (run-time) service management in terms of Control and Monitoring. Facilitates P2P service composition and collaboration (also basis workflows and transactions oriented use cases). Bluetooth binding for Mobile Web Services. Prototypes of In-Network Computation and Mobile Gateway. Publications JOURNAL: Gehlen, G. and Aijaz, F. and Yi Zhu, and Walke, B., Mobile P2P Web Services using SIP . In Journal of Mobile Information Systems, Vol. 3, No. 3,4, p.p. 165-185, Amsterdam, Netherlands, IOS Press Aijaz, F. and Hameed, B. and Walke, B., Asynchronous Mobile Web Services: Concept and Architecture . In Proceedings of the 8th IEEE International Conference on Computer and Information Technology (accepted) Aijaz, F. and Hameed, B. and Walke, B., Towards Peer-to-Peer Long Lived Mobile Web Services . In Proceedings of the 4th IEEE International Conference on Innovations in Information Technology Aijaz, F. and Adeli, Seyed M. and Walke, B., Towards a Theory of Service Oriented In-Network Distributed Operations for Wireless Networks . Submitted to IEEE Globecom 2008 Conference (awaiting decision) Aijaz, F. and Adeli, Seyed M. and Walke, B., Middleware for Communication and Deployment of Time Independent Mobile Web Services . Submitted to IEEE ICWS 2008 Conference (awaiting decision) From Traditional Synchronous Mobile Web Services to… … and beyond… Prof. Dr.-Ing. B. Walke, Fahad Aijaz Chair of Communication Networks Asynchronous Mobile Web Service Framework Interaction Mechanisms Creation, Control & Monitoring

What‘s New

Transition from tranditional short-lived (synchronous) to long-lived (asynchronous) highly dynamic Mobile Web Services.

Mobile Web Services framework for development and deployment of P2P asynchronous time-independent services .

Supports Polling and Callback interaction techniques.

Dynamic (run-time) service management in terms of Control and Monitoring.

Facilitates P2P service composition and collaboration (also basis workflows and transactions oriented use cases).

Bluetooth binding for Mobile Web Services.

Prototypes of In-Network Computation and Mobile Gateway.

Publications

JOURNAL: Gehlen, G. and Aijaz, F. and Yi Zhu, and Walke, B., Mobile P2P Web Services using SIP . In Journal of Mobile Information Systems, Vol. 3, No. 3,4, p.p. 165-185, Amsterdam, Netherlands, IOS Press

Aijaz, F. and Hameed, B. and Walke, B., Asynchronous Mobile Web Services: Concept and Architecture . In Proceedings of the 8th IEEE International Conference on Computer and Information Technology (accepted)

Aijaz, F. and Hameed, B. and Walke, B., Towards Peer-to-Peer Long Lived Mobile Web Services . In Proceedings of the 4th IEEE International Conference on Innovations in Information Technology

Aijaz, F. and Adeli, Seyed M. and Walke, B., Towards a Theory of Service Oriented In-Network Distributed Operations for Wireless Networks . Submitted to IEEE Globecom 2008 Conference (awaiting decision)

Aijaz, F. and Adeli, Seyed M. and Walke, B., Middleware for Communication and Deployment of Time Independent Mobile Web Services . Submitted to IEEE ICWS 2008 Conference (awaiting decision)

Ongoing Research Activities Data Representation Architectural enhancements to support service specific data representation and management for Mobile Web Services. Cost (battery consumption) Efficient Mobile Service Terminals Ultra-low cost embedded Mobile Web Services for sensor equipped Sun SPOTs. IEEE 802.15.4 (WPAN Task Group 4) based short-ranged P2P Mobile Web Services. Remote management application for Sun SPOTs‘ control and monitoring. Foreseen prototype of an application use case (e.g. home automation, health care, network management etc. ...) Memory and Processing Efficient Mobile Service Architecture Performance enhancement of Mobile Web Services architecture with RESTful architectural design. RESTful consumption of synchronous and asynchronous Mobile Web Services. Protocol bindings for RESTful architecture. Prototype application presenting performance enhancements over SOA based middleware. Performance Analysis Analytical modeling of various aspects of synchronous and asynchronous architectures. Performance evaluation by measurements of RESTful and Sun SPOT service architectures.  Master thesis  Master thesis Prof. Dr.-Ing. B. Walke, Fahad Aijaz Chair of Communication Networks

Data Representation

Architectural enhancements to support service specific data representation and management for Mobile Web Services.

Cost (battery consumption) Efficient Mobile Service Terminals

Ultra-low cost embedded Mobile Web Services for sensor equipped Sun SPOTs.

IEEE 802.15.4 (WPAN Task Group 4) based short-ranged P2P Mobile Web Services.

Remote management application for Sun SPOTs‘ control and monitoring.

Foreseen prototype of an application use case (e.g. home automation, health care, network management etc. ...)

Memory and Processing Efficient Mobile Service Architecture

Performance enhancement of Mobile Web Services architecture with RESTful architectural design.

RESTful consumption of synchronous and asynchronous Mobile Web Services.

Protocol bindings for RESTful architecture.

Prototype application presenting performance enhancements over SOA based middleware.

Performance Analysis

Analytical modeling of various aspects of synchronous and asynchronous architectures.

Performance evaluation by measurements of RESTful and Sun SPOT service architectures.