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An Economic Model For The Radio Resource Management In Multimedia Wireless Systems
University of Ferrara.
KTH, Superseded Departments, Signals, Sensors and Systems.
KTH, Superseded Departments, Signals, Sensors and Systems.ORCID iD: 0000-0003-4986-6123
University of Ferrara.
2004 (English)In: Computer Communications, ISSN 0140-3664, E-ISSN 1873-703X, Vol. 27, no 11, 1056-1064 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, we study the connection between radio resource management (RRM) and economic parameters, whose application in multimedia communication system is a challenging task. In fact, a real network provider has to consider other parameters, besides the common goals of RRM like throughput maximisation or meeting constraints connected with the quality of service. In particular, when the financial needs of the provider and the reaction of the users to prices are taken into account, economics have to be introduced in the analysis. We intend to study multimedia communication systems by including well-known economic models and reasonable considerations in the usual radio resource allocation scenario. To do this, we present a model of users' satisfaction, which considers the effects of both users' request and price paid. In this way, it is possible to investigate the relationship between the radio resource allocation and the provider revenue. Other conclusions can be derived as well, e.g. for the pricing strategy planning or the network dimensioning. Thus, we give analytical insight and numerical results, which highlight that the network management is heavily affected by the economic scenario.

Place, publisher, year, edition, pages
2004. Vol. 27, no 11, 1056-1064 p.
Keyword [en]
network management, pricing, quality-of-service, cellular network, bandwidth allocation, BROAD-BAND NETWORKS
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-13003DOI: 10.1016/j.comcom.2004.01.011ISI: 000221498200003Scopus ID: 2-s2.0-1942516839OAI: oai:DiVA.org:kth-13003DiVA: diva2:320086
Note
QC 20101020 QC 20111103. AIAA/ASME/SAE/ASEE 37th Joint Propulsion Conference. SALT LAKE CITY, UTAH. JUL 08-11, 2001 Available from: 2010-05-21 Created: 2010-05-21 Last updated: 2011-11-03Bibliographically approved
In thesis
1. Demand responsive resource management for cellular networks: link asymmetry, pricing and multihopping
Open this publication in new window or tab >>Demand responsive resource management for cellular networks: link asymmetry, pricing and multihopping
2005 (English)Doctoral thesis, comprehensive summary (Other scientific)
Abstract [en]

Economic affordability of services and infrastructures has rapidly become one of the key issues in the evaluation and design of wireless access systems. The provisioning of high data rates, at an ``affordable'' price, constitutes a serious challenge to the structure and management of current and future wireless networks.

The management of radio resources, Radio Resource Management or RRM for short, has traditionally been benchmarked mostly by technical merits such as throughput (data delivery capability) and Quality of Service (QoS). When comparing different RRM schemes, the scheme that can deliver more bits per Hertz (unit of bandwidth) or per Euro is often assumed the more efficient. From an economic point of view, however, cost efficiency is not equivalent to profitability.

We conjecture that the economic efficiency and profitability can be improved both by better technical efficiency and by better accounting for users' service appreciation and willingness to pay. While we shall, primarily treat the operator's benefit of improved RRM, we will try to improve the RRM by means of being more responsive to the demands of the users. In eight conference and journal papers, we investigate: Provisioning of support for asymmetric traffic, Quality and pricing aware resource management and Creation of forwarding incentive in multihop cellular networks.

We show that implementing support for asymmetric links can improve the efficiency of (service) production in Time Division Duplexing (TDD) mode wireless networks with asymmetric traffic. That is, more traffic can be handled with the same system resources. Compared to Frequency Division Duplexing (FDD), TDD offers more flexible use of spectrum resources. The benefits of TDD and support for asymmetric links are readily available for systems providing high-rate spotty coverage. For systems aiming at full coverage and tight reuse, however, proper measures must be taken to control inter-mobile- and inter-base-station-interference.

We present the MEDUSA model framework for taking users' service appreciation and willingness to pay into account in performance evaluations of wireless networks with elastic traffic. Assuming that user satisfaction depends on both the quality and the price of the service, numerical experiments show that the economic efficiency of an RRM scheme is affected by the pricing scheme. We also introduce the concepts of speculative resource management to exploit traffic elasticity and improve resource utilisation. With speculative admission control, users with good propagation conditions may be admitted to a full system at the expense of a slight degradation of the QoS of some or all users, if the expected total revenue would thereby increase. Results indicate significant revenue gain with speculative admission control. Service perception aware scheduling was evaluated as a means to improve resource utilisation, but yielded only marginal gain compared to a weighted proportional fair scheduler.

For the third area studied in this Thesis, i.e. multihopping in cellular networks, economic efficiency was both the goal and one of the means to achieve it. By means of a resource re-distribution scheme called Resource Delegation we eliminated the bandwidth bottle neck of the relays. We combined Resource Delegation with economic compensation for the energy expenditures of the relays and were able to achieve significantly increased operator revenue with maintained or improved user utility. Assuming that the added complexity of keeping track of reward transactions is negligible, profitability was correspondingly improved.

Place, publisher, year, edition, pages
Stockholm: KTH, 2005. viii, 90 p.
Series
Trita-S3-RST, ISSN 1400-9137 ; 0509
Keyword
Electrical engineering, Elektroteknik, elektronik och fotonik
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-180 (URN)
Public defence
2005-04-29, Sal C1, Electrum, Isafjordsgatan 22, Kista, 14:00
Opponent
Supervisors
Note
QC 20101021Available from: 2005-04-27 Created: 2005-04-27 Last updated: 2010-10-21Bibliographically approved

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