公开(公告)号：KR1020070120072A

公开(公告)日：2007-12-21

申请号：KR1020070111273

申请日：2007-11-02

Applicant: 숭실대학교산학협력단

Inventor： 임유진 ,  안상현 ,  이재훈 ,  김영한

IPC: H04L12/28 ,  H04L12/44

Abstract: An area-based overlay multicast method using geographical information in a mobile ad hoc network is provided to be capable of dividing network topology into areas by using geographical information of group member nodes, while limiting a location updating range to related areas only, thereby reducing packet overheads related to location information maintenance. Topology of a mobile ad hoc network is divided into areas(106). Non-group member nodes(104) demand multicast session subscription to a GC(Group Coordinator)(100) to become group member nodes. Group member nodes(102) demand multicast session secession to the GC(100) to become non-group member nodes. The group member nodes(102) periodically notify another group member nodes within a self area of location information on the group member nodes(102). When the group member nodes(102) move between the areas(106), the group member nodes(102) notify the GC(100) and another group member nodes within a new area and a previous area of location information on the group member nodes(102). The GC(100) receiving data packets from a data packet transmitter distributes the data packets to the group member nodes(102) within the mobile ad hoc network.

Abstract translation: 提供了一种使用移动自组织网络中的地理信息的基于区域的覆盖多播方法，其能够通过使用组成员节点的地理信息将网络拓扑划分为区域，同时仅将位置更新范围限制到相关区域，从而减少分组 与位置信息维护相关的开销。 移动自组织网络的拓扑分为区域（106）。 非组成员节点（104）要求向GC（组协调器）（100）的组播会话订阅成为组成员节点。 组成员节点（102）要求多播会话分离到GC（100）成为非组成员节点。 组成员节点（102）周期性地通知组成员节点（102）上的位置信息的自身区域中的另一组成员节点。 当组成员节点（102）在区域（106）之间移动时，组成员节点（102）通知GC（100）和组成员节点上的新区域中的另一组成员节点和位置信息的先前区域 （102）。 从数据分组发射机接收数据分组的GC（100）将数据分组分发到移动自组织网络内的组成员节点（102）。