NDLI: Adaptive joint bandwidth and power allocation in heterogeneous wireless access environment

Content Provider	Springer Nature Link
Author	Yan, JiLei Li, JianDong Zhao, LinJing
Copyright Year	2014
Abstract	Joint bandwidth and power allocation for a multi-radio access (MRA) system in a heterogeneous wireless access environment is studied. Since both the number of users being served by the system and the wireless channel state are time-varying, the optimal resource allocation is no longer a static optimum and will change with the varying network state. Moreover, distributed resource allocation algorithms that require iterative updating and signaling interactions cannot converge in negligible time. Thus, it is unrealistic to assume that the active user number and the wireless channel state remain unchanged during the iterations. In this paper, we propose an adaptive joint bandwidth and power allocation algorithm based on a novel iteration stepsize selection method, which can adapt to the varying network state and accelerate the convergence rate. A distributed solution is also designed for the adaptive joint resource allocation implementation. Numerical results show that the proposed algorithm can not only track the varying optimal resource allocation result much more quickly than a traditional algorithm with fixed iteration stepsize, but can also reduce the data transmission time for users and increase the system throughput.
Starting Page	1
Ending Page	14
Page Count	14
File Format	PDF
ISSN	1674733X
Journal	Science in China Series : Information Sciences
Volume Number	57
Issue Number	6
e-ISSN	18691919
Language	English
Publisher	Science China Press
Publisher Date	2014-05-13
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	heterogeneous wireless networks multi-radio access system resource allocation network utility maximization adaptive stepsize Information Systems and Communication Service
Content Type	Text
Resource Type	Article
Subject	Computer Science

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