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There are certain aspects in the field of networking that needs to be accomplished, yet it is very difficult to achieve. One such concept is Optimization. Achieving a high degree of reliability will eventually lead us to Optimization. But, achieving high degree of reliability?? This indeed is a very big problem that needs a solution. There have been many solutions before that solves the problem in...
In this paper, we apply distributed optimization dynamics of the mutually connected neural networks to RAN selection in heterogeneous type cognitive wireless networks. We evaluate the performance of the proposed approach by implementing it on an experimental heterogeneous wireless network system called Cognitive Wireless Cloud, which supports vertical handover between different radio access networks...
We studied a class of Service Overlay Network (SON) capacity allocation problem. By analyzing the problem with two different nonlinear optimization formulations, we show that the prices of offering service guarantees are closely related to a set of Lagrange multipliers. Moreover, if the Grade of service (GoS) constraints are not hard requirements, the network design resulting from the set of prices...
In this paper, an efficient scheme to optimize resource allocation for dynamic OFDMA based WiMAX systems is presented, which provides priority estimated resource allocation with individual QoS provisioning. Our proposed scheme dynamically assigns OFDMA resources to the users to optimize the overall system performance in heterogeneous traffic and diverse QoS based WiMAX systems. To achieve this goal,...
In this paper we present a centralized flow control scheme in NoCs in the presence of both elastic and streaming flow traffic paradigms. We model the desired best effort (BE) source rates as the solution to an alpha-fair utility maximization problem which is constrained with link capacities while preserving guaranteed service (GS) traffic requirements at the desired level. We propose an iterative...
In this paper we study the optimality of an index policy for a bandwidth allocation problem, where a single server is allocated among N queues in a slotted system based on the queue backlog information. Due to the physical nature of the system this information is delayed, in that when the allocation decision is made, the server only has the backlog information from an earlier time. This results in...
A cross layer design method is presented which is built upon the idea of equivalence classes of key-parameters of several layers in the protocol stack. An equivalence class is composed of all key-parameter tuples which fulfill a desired quality of service. Since different parameter tuples are usually associated with different costs (e.g. transmit power), a cross-layer design can select the most cost-efficient...
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