Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article SPIZ: An Effective Service Discovery Protocol for Mobile Ad Hoc Networks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2007 Article ID 25167 13 pages doi 2007 25167 Research Article SPIZ An Effective Service Discovery Protocol for Mobile Ad Hoc Networks Donggeon Noh and Heonshik Shin School of Computer Science and Engineering College of Engineering Seoul National University Seoul 151742 Korea Received 1 February 2006 Revised 19 July 2006 Accepted 16 August 2006 Recommended by Hamid Sadjadpour The characteristics of mobile ad hoc networks MANETs require special care in the handling of service advertisement and discovery Ad D . In this paper we propose a noble service Ad D technique for MANETs. Our scheme avoids redundant flooding and reduces the system overhead by integrating Ad D with routing layer. It also tracks changing conditions such as traffic and service popularity levels. Based on a variable zone radius we have combined push-based Ad D with a pull-based Ad D strategy. Copyright 2007 D. Noh and H. Shin. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION As computer networks and their applications become central to everyday life users demand an efficient way to locate services the services of a network are made up of many kinds of software and hardware components related to data information computational devices storage and the network itself over a network. This is particularly true for self-configurable networks which must be easy to deploy and to reconfigure automatically when they are extended with new hardware and software capabilities. Mobile ad hoc networks MANETs are a special form of self-configurable network with their own dynamics resource constraints at the constituent nodes and no centralized management mechanism. Because of these characteristics the development of service discovery .
