• Journal of the Institute of Electronics Engineers of Korea TC
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• v.42 no.7 s.337
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• pp.7-18
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• 2005

Geomulticast is a specialized location-dependent multicasting technique, where messages are multicast to some specific user groups within a specifc zone. In this paper, we propose architectures and protocols for supporting geomulticast services in a cost effective way and with high message delivery accuracy in the challenging environment of mobile ad-hoc networks. Furthermore, we define and formulate a framework in order to evaluate the performance of the design alternatives used for the support of geomulticast services in mobile ad-hoc networks. Based on this framework, we evaluate the performance of the proposed architectures and protocols and we obtain some insight about the impact of the various design and operational parameters on the overall system performance.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.7
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• pp.191-201
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• 2013

In this paper, we propose a location based multicast routing protocol, called Geomulticast, in mobile ad-hoc wireless networks. The main features and contributions of the proposed geomulticast are as follows. First, support data transmission to only the specific mobile nodes within a target area. Second, establish stable routing route by using mobility information of nodes. Third, reduce control overhead, power for construction of routing route by using geomulticast guided line information. Fourth, present a theoretical model for establishing stable route. The performance evaluation of the proposed geomulticast is executed by using OPNET simulation and theoretical analysis, and the results of simulation and theoretical analysis have similar patterns. And we can see that data packets are efficiently transmitted to specific user groups within a specific area.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.433-437
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• 2004

지오멀티캐스트는 특별한 지역의존 멀티캐스트 기술이며, 여기서 메시지는 특별한 지역 내에 있는 특별한 사용자 그룹들에게 멀티캐스트 된다. 본 논문에서는 모바일 ad-hoc 네트워크에서 효율적인 비용과 높은 메시지 전송률을 가지는 지오멀티캐스트 구조들과 지오멀티캐스트 서비스를 지원하기 위해서 사용되는 방법들의 성능을 평가하기 위한 구조를 정의하고 제안한다. 이러한 성능평가 구조에 기초하여 제안된 지오멀티캐스트 방법 및 프로토콜들의 성능을 평가하고 이를 기반으로 하여 여러 가지 디자인 및 동작 파라미터들의 영향에 관하여 고찰 점검한다.