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By routing protocol modeling, we can better understand the performance characteristics in different causes. In this paper, we will use the excellent tool in distributed systems and parallel systems, named QPN (Queueing Petri Net). And, we use the simulation tools of QPN, including QPME2.01 and SimQPN, to model the important metrics of routing method in Delay Tolerant Networks. In our previous paper,...
The node's energy of wireless sensor networks is limited, so saving energy and prolonging network's lifetime is very important. A multi-hop routing protocol based on grid optimization (MhRPGO) is proposed to improve network's performance in wireless sensor networks. The clustering topology based on grid is used in the network layer, and grid optimization algorithm is adopted to optimize the node's...
In vehicular ad hoc networks, vehicles may use a routing protocol to inform emergent events, e.g. car accidents or traffic jams. Hence, many of the researchers are focus on minimizing the end-to-end delay of the routing protocol. However, some applications, e.g. email or ftp, are not time critical and radio spectrum is a limited resource. Hence, delay-bounded routing protocol, whose goal is to deliver...
In this paper, we use ns2 to simulate routing methods. Not only compare the delivery ratio but also understand the factors that affect the delivery ratio. We choose four routing methods including our new routing method just been accepted in ICCNT2012 [11], named OOPFE-Routing. We will focus on the packet-drop-problems that don't depend on buffer queue and don't consider the network security in delay...
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