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While multiple access links enhance the availability and utilization of multicast service nodes, the resource allocation balancing needs to be performed on a link basis, which is usually not considered in most overlay multicast routing algorithms. To accurately represent the bandwidth consumption of each overlay node, we need not only a multihomed proxy model to describe the overlay multicast routing...
Even though channel assignment has been studied for years, most IEEE 802.11-based multi-hop wireless networks such as WSN, WMN, MANET are limited by channel interference. Properly assigning orthogonal channels to wireless links can improve the throughput of multi-hop network. To solve the dynamic channel assignment problem, a routing-based channel assignment algorithm R-CA is proposed. R-CA can allocate...
We propose a novel overlay routing infrastructure, namely Overlay-based Service Distribution Network(OSDN), which eliminates path inflation due to the inter-domain routing policy and could serve as a universal platform to convey various online services more efficiently. Its basic idea is to deploy overlay nodes at critical locations in the Internet such that the service provider and its customers...
Delay tolerant networks are a type of wireless mobile networks that do not guarantee the existence of a path between a source and a destination at any time. In such a network, one of the critical issues is to reliably deliver data with a low latency. Naive forwarding approaches, such as flooding and its derivatives, make the routing cost (here defined as the number of copies duplicated for a message)...
In this paper we propose a scalable admission control scheme for the QoS sensitivity traffic in core-stateless networks. In our scheme, the ingress routers perform admissibility test in a fully distributed and parallel fashion for requests by dint of our bandwidth dividing based virtual link mechanism. Then, we introduce a novel two phase token passing mechanism to adaptively optimize the proportion...
In this paper, we discuss energy balancing routing algorithms for wireless sensor networks connected as grids. The scarcest resource in a sensor network is the energy in each sensor. We deploy the sensors in a grid where environment allows to maximize the lifetime, robustness and fault tolerance of the sensor network by taking advantage of the topology. To the best of our knowledge, no other paper...
In this paper, a multiobjective optimization QoS-aware path selection algorithm is proposed for LSPs setup in DiffServ-MPLS networks. We simultaneously optimize multiple QoS objectives by a genetic algorithm in conjunction with concept of Pareto dominance. Simulation demonstrates that the proposed algorithm is capable of discovering a set of QoS-aware near optimal paths within in a few iterations...
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