Optimal Rate Allocation in Cluster-Tree WSNs

Optimal Rate Allocation in Cluster-Tree WSNs

In this paper, we propose a solution to the problem of guaranteed time slot allocation in cluster-tree WSNs. Our design uses the so-called Network Utility Maximization (NUM) approach as far as we aim to provide a fair distribution of the available resources. From the point of view of implementation, we extend here the authors' proposed Coupled-Decompositions Method (CDM) in order to compute the...

Optimal Downlink Rate Allocation

We study downlink rate allocation for a three cells CDMA system. Based on the discretized cell model, the rate optimization problem that maximizes the total downlink rate allocation is formulated. We propose an approximation procedure for obtaining a rate allocation in three cells case. Via numerical examples, we show that this procedure gives a good approximation of the optimal downlink rate a...

Optimal Rate Allocation in Overlay Content Distribution

This paper addresses the optimal rate allocation problem in overlay content distribution for efficient utilization of limited bandwidths. We systematically present a series of optimal rate allocation strategies by dividing our discussions into four typical scenarios. Based on application-specific requirements, these scenarios reflect the contrast between elastic and streaming content distributi...

Optimal Cache Organization using an Allocation Tree

The increasing use of microprocessor cores in embedded systems, as well as mobile and portable devices, creates an opportunity for customizing the cache subsystem for improved performance. In this work, we outline a technique based on a binary tree data structure to efficiently compute a set of cache size and associativity pairs that result in ideal cache behavior for a given application memory...

Optimal Bit Allocation Under Multiple Rate Constraints