Acta Metallurgica Sinica(English letters) ›› 2012, Vol. 19 ›› Issue (6): 73-78.doi: 10.1016/S1005-8885(11)60320-8

• Networks • Previous Articles     Next Articles

Context-aware location discovery exchange in a ubiquitous environment

Feng Gao   

  1. 1. Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science & Technology, Nanjing 210044, China 2. School of Information Science and Technology, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
  • Received:2012-09-11 Revised:2012-11-07 Online:2012-12-31 Published:2012-12-14
  • Contact: Feng Gao E-mail:f.gao@live.com
  • Supported by:

    This work was supported by the Project of the Priority Academic Program Development of Jiangsu Higher Education Institutions, the Project of the Scientific Research Foundation for the Returned Overseas Chinese Scholars, Nanjing (S7610014001).

Abstract:

It becomes challenging in order to represent, discover and exchange location information in a ubiquitous environment due to dynamic movement and interaction between mobile nodes inside. In this paper, a new method is presented in order to make location information context-aware so that organizing the format of location information and maintaining the communication between direct connected nodes in a ubiquitous environment is enabled. The structure of a contextual location information repository and a context information communication protocol is manipulated to implement the proposed features. According to the simulation results in network simulator version2 (NS2), the new method has depicted good discovery success and consumed efficient service discovery bandwidth. Other network traffic, i.e. transmission control protocol, (TCP) has been simulated in the scenarios but the new location-aware method has shown its robustness with continuous context discovery process.

Key words:

Context-aware, Ubiquitous Computing, Location-aware, Service Discovery