Authors: C.K. Toh, Guillermo Guichal, Dongkyun Kim, Victor O.K. Li
Addresses: Department of Electrical and Electronics Engineering, The University of Hong Kong, China. ' Embedded Systems Ltd., Argentina. ' Department of Computer Engineering, Kyungpook National University, Korea. ' Department of Electrical and Electronic Engineering, University of Hong Kong, China
Abstract: As service-oriented networks are essential in our lives, service location, access and location provisioning over wired and wireless networks will govern users| satisfaction. We, therefore, present several approaches to service location in ad hoc networks: distributed broadcast query; query via service co-ordinators (SC); a hybrid combination. We also evaluated these approaches in terms of service availability (SA) and control overhead under variable network sizes and mobility scenarios. Simulation results showed that the distributed query approach suffered from high control overhead. The SC based approach provides a more scalable architecture by providing different service areas. Finally, the hybrid approach provided greater flexibility and robustness.
Keywords: service discovery protocols; distributed broadcast; service coordinators; service availability; control overheads; service location protocols; mobile networks; wireless networks; ad hoc networks; MANETs; network sizes; mobility; simulation; distributed query.
International Journal of Ad Hoc and Ubiquitous Computing, 2007 Vol.2 No.4, pp.250 - 262
Published online: 17 Jun 2007 *Full-text access for editors Access for subscribers Purchase this article Comment on this article