in network of nodes connected by bi-directional links where each link has a cost in each direction for each pair of nodes, find path with least cost link costs in different directions may be different alternatives: Dijkstra or Bellman-Ford algorithms Dijkstra’s Algorithm finds shortest paths fro...
•SeeStallingsappendix10Aforroutingalgorithms ExamplePacketSwitched Network DecisionTimeandPlace(路由选择的 时间和地点) •Time —Packetorvirtualcircuitbasis(基于分组或虚电路) •Place —Distributed(分布式) •Madebyeachnode —Centralized(集中式) ...
Introduction The goal of a geocasting protocol is to deliver a packet to a set of nodes within a specified geographical area. Unlike multicast communication for an ad hoc network, membership in a geocast group changes whenever a mobile node (MN) moves in or out of the geocast region. 2010...
We conducted most of the tests on a Pentium II 266 MMX industrial Personal Computer with 32M RAM. Because of the varying nature of the algorithms developed, the duration of tests is also varying. For λ-interchange LSD (GB), the algorithm goes up to 20 iterations, but may terminate earlier...
NS-2 and JavaSim Similarities Event driven simulators tcl like interface Capable of network simulation Outputs to NAM and xgraph formats –Can also output to any format that's been programmed into it Bad documentation –JavaSim: no documentation other than javadoc –ns-2: documentation does not ...
As a pervasive technology, it has been widely used in vehicle monitoring, health care, urban transportation, space exploration and other promising fields [2]. As the most representative member of IoT, the Wireless Sensor Network (WSN) can serve as a general platform for many domains, such as...
The basic algorithms described in this protocol were used in computer routing as early as 1969 in the ARPANET. However, the specific ancestry of this protocol is within the Xerox network protocols. The PUP protocols (see [4]) used the Gateway Information Protocol to exchange routing information....
This paper demonstrates that the practical task of routing packets through a communication network is a natural application for reinforcement learning algorithms. Now at Brown University, Department of Computer Science Our \Q-routing" algorithm, related to certain distributed packet routing algorithms 6,...
Algorithms highly distributed, because local communication with stringent power requirements Self-configuring, Highly scalable, redundant Robust with shifting topologies Gather data from different parts of network Without taxing its limited bandwidth and power ...
• Network-wide models –Representations of topology and traffic –“What-if” models of shortest-path routing • Network optimization –Efficient algorithms to find good configurations –Operational experience to identify key constraints Scalability: Overhead of Link-State Protocols ...