Download Utility-based optimisation of resource allocation for by Călin Curescu. PDF

By Călin Curescu.

Show description

Read or Download Utility-based optimisation of resource allocation for wireless networks PDF

Best networking books

Introduction to Wireless Local Loop: Broadband and Narrowband Systems (2nd Edition)

That includes constructing applied sciences, up-to-date industry forecasts, and present regulatory projects, this article goals to maintain the reader on the vanguard of rising items, companies and concerns affecting the sector of instant neighborhood loop (WLL) know-how. the second one version contains new chapters on WLL deployment, the WLL marketplace, and a considerable overview of broadband applied sciences, in addition to new sections on prediction of person specifications and the rising UMTS commonplace.

Practical RF Circuit Design for Modern Wireless Systems Vol. 2: Active Circuits and Systems

The second one of 2 volumes, it is a entire therapy of nonlinear circuits, introducing the complex themes that pros have to comprehend for his or her RF (radio frequency) circuit layout paintings. It offers an advent to lively RF units and their modelling, and explores nonlinear circuit simulation strategies.

Extra info for Utility-based optimisation of resource allocation for wireless networks

Example text

3), and resource is allocated in this order until depleted. Thus, an allocation to a task equals to the sum of the resource amounts of its “allocated segments”. The concave form of the convex hull ensures a consistent allocation. Note that the slope of segment j, (ui,j − ui,j−1 )/(ri,j − ri,j−1 ), represents its efficiency in terms of contribution to the system utility. The complexity of the algorithm is O(nL log n), where n is the number tasks, and L is the maximum number of utility levels of a utility function.

Based on their flexibility to reallocations, we have categorised applications in three classes: non-flexible, semi-flexible and fully flexible. The time at which a reallocation decision is taken is also very important. Because of the invested resources, disconnecting a connection when it is nearly finished creates a larger utility loss than if it is dropped just after start and bandwidth has been invested for a small period of time. Thus, the system has to be aware of the age of the connections to take a good (re)allocation decision.

If a class I new connection is accepted, any subsequent reduction of bandwidth is equivalent to dropping the connection. Since it uses the same amount of resources during its lifetime, increasing the bandwidth brings no benefit. If the connection is not dropped, the accumulated utility of the connection is calculated by this formula: × duration. Examples are hard real-time applications, uai = uinit i critical control data, real-time data streams. Class II represents semi-flexible connections. These are applications that are judged by their worst moment in their lifetime.

Download PDF sample

Rated 4.58 of 5 – based on 22 votes