Stock Image

Convex Optimization for Radio Resource Management in Heterogeneous Networks

Steven Corroy

Published by Shaker Verlag Dez 2013, 2013
ISBN 10: 3844024581 / ISBN 13: 9783844024586
New / Taschenbuch / Quantity Available: 1
From Agrios-Buch (Bergisch Gladbach, Germany)
Available From More Booksellers
View all  copies of this book
Add to basket
List Price:
Price: £ 44.94
Convert Currency
Shipping: £ 15.32
From Germany to U.S.A.
Destination, Rates & Speeds

Save for Later

About the Book

Bibliographic Details

Title: Convex Optimization for Radio Resource ...

Publisher: Shaker Verlag Dez 2013

Publication Date: 2013

Binding: Taschenbuch

Book Condition: Neu


Neuware - Heterogeneous networks are expected to be one of the key enablers for solving the capacity problem of modern mobile communication networks. As the demand for mobile traffic will grow exponentially in the coming years, low power base stations will be deployed to serve users in crowded areas with limited costs and system complexity. A core research challenge is to optimally operate heterogeneous networks. One of the main problems is cell association, which consists of associating users to either a macro node or a smaller low power node, e.g., a pico node. In this dissertation, the problem of finding the cell association that maximizes the sum rate in the downlink of an LTE-based network is investigated. This problem is of combinatorial nature. The theory of convex optimization is at the heart of this work. Semidefinite programming, and more specifically, modern methods of semidefinite relaxation and randomization are the key concepts that allow for solutions with low complexity. In order to highlight the effectiveness of this theory for solving combinatorial problems, the problem of noncoherent demapping for fading channels using quadrature phase-shift keying (QPSK) is considered. The randomization method is shown to outperform the classical pilot-based demapping when the channel dynamic is high. The problem of cell association in heterogeneous networks is first considered for networks consisting of one macro node and one pico node. It is demonstrated that this problem can be formulated as a binary linear fractional problem, which can be transformed into a binary quadratic fractional problem. An upper bound on the achievable sum rate is derived via semidefinite relaxation. A new practical heuristic, called dynamic range, is proposed. It is shown that this heuristic outperforms standard methods from the LTE standard and comes close to the upper bound. Furthermore, similar practical algorithms are provided to optimize cell association for more realistic network setups. In order to show the wide range of applicability of semidefinite programming for communication systems, the problem of associating users to either a base station or a relay is considered. It is demonstrated that this problem can be reformulated as a maximin binary fractional problem. Furthermore, it is shown that this problem can be transformed so that the fundamentals of the theory used for cell association can be applied. A novel heuristic is proposed. It leads to a relay association that improves the sum rate to a value close to the optimum. Finally, another problem inherent to relay networks is tackled via convex optimization. In order to transmit sparse signals over amplify-and-forward multihop relay networks, methods from compressed sensing are adapted and utilized. A new framework for modeling such networks is proposed. The optimal relaying strategy for error minimization is derived and shown to enable reconstructing sparse signals reliably. 181 pp. Englisch. Bookseller Inventory # 9783844024586

Bookseller & Payment Information

Payment Methods

This bookseller accepts the following methods of payment:

  • American Express
  • Bank/Wire Transfer
  • Check
  • Invoice
  • MasterCard
  • PayPal
  • Visa

[Search this Seller's Books]

[List this Seller's Books]

[Ask Bookseller a Question]

Bookseller: Agrios-Buch
Address: Bergisch Gladbach, Germany

AbeBooks Bookseller Since: 11 January 2012
Bookseller Rating: 5-star rating

Terms of Sale:

Allgemeine Geschäftsbedingungen (

der Firma Agrios Buch- und Medienversand UG e.K. ,Geschäftsführer Ludwig Meier, De-Gasperi-Str. 8, 51469 Bergisch Gladbach nachstehend als Verkäufer bezeichnet.

§ 1 Allgemeines, Begriffsbestimmungen

(1) Der Verkäufer bietet unter dem Nutzernamen Agrios Buch unter der Plattform insbesondere Bücher an. Die folgenden Allgemeinen Geschäftsbedingungen (AGB) gelten für die Geschäftsbeziehung zwischen dem Verkäufer und dem Kunden in ihrer zum Ze...

[More Information]

Shipping Terms:

Der Versand ins Ausland findet IMMER mit DHL statt. Auch nach Österreich verschicken wir nur mit DHL! Daher Standardversand == Luftpost!

Detailed Seller Information