Link-adaptive joint path and capacity design for multi-hop relay backbone in TDD-OFDMA system

Authors:
Hye J. Kang;Chang W. Ahn;Chung G. Kang
Affiliations:
School of Electrical Engineering, Korea University;School of Information and Communication Engineering, Sungkyunkwan University;School of Electrical Engineering, Korea University
Venue:
CCNC'10 Proceedings of the 7th IEEE conference on Consumer communications and networking conference
Year:
2010

Citing 2
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Genetic Algorithms in Search, Optimization and Machine Learning

Genetic Algorithms in Search, Optimization and Machine Learning
Dynamic topology control for multi-hop relaying in a cellular TDD-OFDMA system

WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference

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Abstract

In this paper, we consider an optimal topology control problem that dynamically configures the path and capacity under the varying traffic load for constructing a multi-hop backbone network in the TDD-OFDMA system. In order to deal with the co-channel interference among the different relay stations, K orthogonal subzones of OFDMA data regions are spatially reused. We present a joint path and capacity design problem that maximizes the average throughput while properly trading off the outage performance. Due to the complexity of optimal solution approach to this problem, we resort to a genetic algorithm (GA) to solve the dynamic topology design problem and compare its solution to the results from the existing heuristic algorithms.