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The main objective of this paper is to design a opportunistic routing named ORONM (Opportunistic Routing Oriented to Network Metrics).In this paper, ORONM protocol for the message through to allocate resources to optimize certain routing indicators, such as forwarding success rate, the average transmission delays and cost than, etc. At last, we use QualNet to simulate the protocol, and compare with...
This paper focuses on mobile ad hoc network's routing vulnerability and compares network performance under several attacks. First of all, we put forward an enhanced type of black hole based on current research. Secondly, we implement this attack on DSR protocol, using network simulator 2, and another two attack patterns-passive black hole and RREQ flooding attack for comparison. Finally, the authors...
Geographic routing has been considered as an efficient, simple, and scalable routing protocol for wireless sensor networks since it exploits pure local location information instead of global topology information to route data packets. Geographic routing requires the sources nodes to be aware of the location of sinks. Most existing geographic routing protocols merely assume that source nodes are aware...
Geographic routing has been addressed in many literatures of ad hoc sensor networks due to its efficiency and scalability. Void areas (holes) bring Geographic routing some problems such as data congestion and excessive energy consumption of hole boundary nodes. Holes are hardly avoided in wireless sensor networks due to various actual geographical environments, e.g., puddles, buildings or obstacles,...
Geographic routing has been addressed in many literatures of ad hoc sensor networks due to its efficiency and scalability. Void areas (holes) bring geographic routing several problems such as excessive energy consumption and data congestion of hole boundary nodes. Holes are hardly avoided in wireless sensor networks because of various actual geographical environments, e.g., puddles, buildings or obstacles,...
Void areas (holes) are hardly avoided in wireless sensor networks because of various actual geographical environments, e.g., puddles, buildings or obstacles, or uneven energy consumption. To bypass holes, most existing geographic routing protocols tend to route data packets along the boundaries of holes by perimeter routing scheme. Such a scheme depletes the energy of nodes on the boundary of holes...
Stable multicast data delivery structure contributes high data delivery ratio and low control overhead in Mobile Ad Hoc Networks (MANETs). Due to dynamic topology of MANETs, to construct a stable multicast data delivery structure becomes a challenge in ad hoc environment. In this paper, we propose a stable overlay multicast protocol for MANETs based on modified Delayed Forwarding mechanism. In this...
Nodes mobility brings flinty challenges to multicast in mobile ad hoc networks (MANETs). To track nodes mobility, flooding messages are widely used for data delivery structure construction and maintenance in many multicast protocols. These periodic flooding messages significantly increase network control overhead. To release data delivery structure maintenance onus, a number of stateless multicast...
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