Recently a number of multicast routing protocols for ad hoc networks have been proposed, however, most of them do not provide proper tradeoffs between effectiveness, efficiency and scalability. In this paper, a novel ...Recently a number of multicast routing protocols for ad hoc networks have been proposed, however, most of them do not provide proper tradeoffs between effectiveness, efficiency and scalability. In this paper, a novel multicast routing protocol is presented for ad hoc networks. The protocol, termed as dynamic-ring-based multicast routing protocol (DRMR), uses the concept of dynamic ring whose radius can be adjusted dynamically and DRMR configures this type of ring for all group member nodes. According to the principle of zone routing, two nodes whose rings overlap can create route to each other, thus, when the ring graph composed of all rings is connected, each member node has one or more routes to others. DRMR uses the method of expanding ring search (ERS) to maintain the connected ring graph, and also can decrease the radius of the ring to reduce the overhead. The performances of DRMR were simulated and evaluated with NS2, and results show that DRMR has a high data packet delivery ratio, low control overhead and good scalability.展开更多
为提高物联网(IOT)应用中源节点位置距离基站较近时的隐私保护强度,提出基于不规则环的源位置隐私保护路由协议RBIR(routing based irregular ring)。设计一种创建不规则环的方法并分析环的最佳创建区域,结合中间节点实现数据包的转发...为提高物联网(IOT)应用中源节点位置距离基站较近时的隐私保护强度,提出基于不规则环的源位置隐私保护路由协议RBIR(routing based irregular ring)。设计一种创建不规则环的方法并分析环的最佳创建区域,结合中间节点实现数据包的转发。中间节点的选择受到约束,避免路径交叉;动态更新环节点,使环节点能耗分散,延长网络寿命。仿真结果表明,RBIR的网络寿命较长且安全性较好,当源节点距离基站较近时,有效保证了源位置的隐私。展开更多
文摘Recently a number of multicast routing protocols for ad hoc networks have been proposed, however, most of them do not provide proper tradeoffs between effectiveness, efficiency and scalability. In this paper, a novel multicast routing protocol is presented for ad hoc networks. The protocol, termed as dynamic-ring-based multicast routing protocol (DRMR), uses the concept of dynamic ring whose radius can be adjusted dynamically and DRMR configures this type of ring for all group member nodes. According to the principle of zone routing, two nodes whose rings overlap can create route to each other, thus, when the ring graph composed of all rings is connected, each member node has one or more routes to others. DRMR uses the method of expanding ring search (ERS) to maintain the connected ring graph, and also can decrease the radius of the ring to reduce the overhead. The performances of DRMR were simulated and evaluated with NS2, and results show that DRMR has a high data packet delivery ratio, low control overhead and good scalability.
文摘为提高物联网(IOT)应用中源节点位置距离基站较近时的隐私保护强度,提出基于不规则环的源位置隐私保护路由协议RBIR(routing based irregular ring)。设计一种创建不规则环的方法并分析环的最佳创建区域,结合中间节点实现数据包的转发。中间节点的选择受到约束,避免路径交叉;动态更新环节点,使环节点能耗分散,延长网络寿命。仿真结果表明,RBIR的网络寿命较长且安全性较好,当源节点距离基站较近时,有效保证了源位置的隐私。
