Dynamic spectrum allocation for uplink users with heterogeneous utilities

Dynamic allocation of spectrum prior to transmission is an important feature for next generation wireless networks. In this work, we develop and analyze a model for dynamic spectrum allocation, that is applicable for a broad class of practical systems. We consider multiple service providers (SPs), i...

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Bibliographic Details
Published in:IEEE transactions on wireless communications 2009-03, Vol.8 (3), p.1405-1413
Main Authors: Acharya, J., Yates, R.D.
Format: Article
Language:English
Subjects:
Algorithms
Allocations
Applied sciences
Base stations
Channel allocation
Cognitive radio
Dynamic spectrum allocation
Dynamic tests
Dynamical systems
Dynamics
Exact sciences and technology
Mathematical models
Maximization
Microwave generation
Microwave technology
Next generation networking
Operation, maintenance, reliability
optimization
Organization, operation and development plans
Quality of service
Radiocommunications
Spark plasma sintering
Spectrum allocation
Studies
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Utilities
WiMAX
Wireless LAN
Wireless networks
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Summary:Dynamic allocation of spectrum prior to transmission is an important feature for next generation wireless networks. In this work, we develop and analyze a model for dynamic spectrum allocation, that is applicable for a broad class of practical systems. We consider multiple service providers (SPs), in the same geographic region, that share a fixed spectrum, on a non-interference basis. This spectrum is allocated to their customer end users for transmission to the SPs. Assuming that a user can obtain service from all the SPs, this work develops an efficient algorithm for spectrum allocation. The quality of service depends on system parameters such as number of users and SPs, the channel conditions between the users and SPs and the total transmit power of each user. The SPs have different efficiencies of reception. We adopt a user utility maximization framework to analyze this system. We develop the notion of spectrum price that enables a simple distributed spectrum allocation with minimal coordination among the SPs and users. Given the user utility functions and the system parameters, we characterize the spectrum price and the users' optimal bandwidth allocations. Our work provides theoretical bounds on performance limits of practical operator to user based dynamic spectrum allocation systems and also gives insights to actual system design.
ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2009.080073