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Route optimization support in mobile networks is one of the most important concerns in Next Generation Networks (NGNs). NGNs require an efficient route optimization scheme, optimized specially to support nesting of mobile networks. We propose an Extended Mobile IPv6 route optimization (EMIP) scheme to enhance the performance of nested mobile networks. EMIP scheme is based on MIPv6 route optimization...
Given a fixed network of routers, a set of multicast sources and their corresponding receivers, we investigate the problem of constructing multicast sessions that maximize the multicast throughput of all sessions under fairness constraints. It is known that for problems with only one source node, heuristic algorithms based on packing maximum-rate Steiner trees may achieve throughput close to network...
There has been much recent interest in protocol design for wireless networks based on maximizing a network utility function. A significant advance in recent years is the observation that a decomposition of the Lagrangian suggests an approach where transmissions are scheduled to minimize backpressure. However, a satisfactory Medium Access Control (MAC) protocol that can realize such a scheduling algorithm...
Wireless mesh networks have emerged as a favorable infrastructure that promises to unify the existing 802.11 wireless LANs. With multiple orthogonal channels and possibly multiple interfaces on the mesh nodes, such networks can provide broadband access for a large number of wireless clients. However, efficient assignment of channels to the available network interfaces has long been a daunting task...
In this paper, we study the optimal design of a linear wireless multihop network that employs Hybrid Automatic Repeat reQuest (HARQ) protocols in a quasi-static fading environment. Data transmission is assumed to be delay-tolerant up to a certain predefined maximum delay (in transmission slots) that is larger or equal to the number of hops. Multihop routing is implemented through a time-division scheduling...
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