Survey on architecture of Mobile Web Services Junhua Yu MianruiChai
Contents Introduction Mobile Web Services Applications of mobile web services Web service challenges mobile web services Solution-- mobile web services Architectures Mobile Web Services
Introduction Mobile web services Mobile devices web services
Applications of mobile web services Replacement of physical things that people carry in their daily lives mobile web wallet service
Applications of mobile web services Aggregating data from the environment for the user make an event record
Applications of mobile web services Providing data about the person carrying the mobile device Mobile ID Services Mobile Ticket and Voucher Reader
Applications of mobile web services Replacement of physical things that people carry in their daily lives Aggregating data from the environment for the user Providing data about the person carrying the mobile device
Web service Web services provide a platform for different components to contact with each other. The web services are a set of standards to form a service-oriented architecture (SOA)
Web service
Challenges for mobile web services Hardware the mobile devices are PDAs, mobile phones, two-way pagers, and even wrist-watches Low power CPU small memory small storage capacities small battery make full use of the resources to develop mobile web software
Challenges for mobile web services Communication protocols Most of the cases the protocols are 802.11 or Bluetooth, the communication rage of these protocols are very short. hard to make sure to connect to the network all the time as fast as possible as short as possible
Challenges for mobile web services Identification & security many user may use the same mobile web service at the same time. Identification: easiest way :IP address Movements change its IP address and even the DNS.
Solution faster parsers introduce new ways of data compression optimize the protocol use binary encodings the outcome generally depends on the specific structure of the data in the experiment and the application itself. another height of view Architecture
Mobile web services Architecture Wireless portal network Wireless extended Internet Peer-to-peer (P2P) network
The wireless portal Internet In this kind of architecture, the Gateway is used as the Agent between the service providers, service consumers, and service registries.
The wireless extended Internet
The wireless extended Internet overhead of server page and web service
The wireless extended Internet UDDI Update After Mobile Device Address Reconfiguration
The wireless ad-hoc/P2P network The service requestor (R) The service provider (P) The service broker (B) dotted arrows: node registers its services to the broker dashed-dotted arrows: node searches for remote services continuous arrows: node uses remote service
The wireless ad-hoc/P2P network Service propagation by Konark goissp protocol
The wireless ad-hoc/P2P network mobile web service migration
The Hybrid Network
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