Throughput fairness and efficiency of link adaptation techniques in wireless networks

The authors propose and analyse three link adaptation techniques for fairness enhancement. In the first technique, aggregate throughput maximisation with fairness constraint, the authors formulate the fairness problem as a constrained optimisation problem; they try to maximise the aggregate throughp...

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Bibliographic Details
Published in:IET communications Vol. 3; no. 7; pp. 1227 - 1238
Main Authors: Ahmed, M.H., Yanikomeroglu, H.
Format: Journal Article
Language:English
Published: Stevenage Institution of Engineering and Technology 01.07.2009
John Wiley & Sons, Inc
Subjects:
Adaptation
Aggregates
Applied sciences
Coding, codes
Computational efficiency
Constraints
Exact sciences and technology
Information, signal and communications theory
Links
Maximum power
Modulation, demodulation
Operation, maintenance, reliability
Optimization
Polycarbonates
Signal and communications theory
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Performance evaluation
Unconstrained optimization
Steepest descent method
Wireless telecommunication
Information rate
Equity
Information transmission
Penalty method
Adaptive coding
Constrained optimization
Degradation
Power control
Modulation
Wireless network
Resource management
Service quality
ISSN:1751-8628, 1751-8636
Online Access:Get full text
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Summary:The authors propose and analyse three link adaptation techniques for fairness enhancement. In the first technique, aggregate throughput maximisation with fairness constraint, the authors formulate the fairness problem as a constrained optimisation problem; they try to maximise the aggregate throughput subject to the throughput fairness constraint. To solve the problem, the authors convert the constrained optimisation problem to an unconstrained optimisation one using the penalty method. The second technique, individual throughput balancing, tries to equalise individual throughput by using a higher throughput level for disadvantaged users and using a lower throughput level for advantaged users. Finally, the third technique, adaptive virtual maximum power constraint, uses virtual maximum power cap. The three proposed techniques are then compared with the three basic link adaptation techniques (PC, ACM, and joint PC and ACM). The three proposed techniques are shown to be able to enhance the fairness with different degrees and with different levels of aggregate throughput degradation.
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ISSN:1751-8628
1751-8636
DOI:10.1049/iet-com.2008.0234