Robust Transmit Power Control for Cognitive Radio

PEYMAN SETOODEH; SIMON HAYKIN

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Robust Transmit Power Control for Cognitive Radio

机译：Robust Transmit Power Control for Cognitive Radio

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摘要

A cognitive radio network is a multiuser system, in which different users compete for limited resources in an opportunistic manner, interacting with each other for access to the available resources. The fact that both users and spectrum holes (i.e., unused spectrum subbands) can come and go makes a cognitive radio network a highly dynamic and challenging wireless environment. Therefore, finding robust resource-allocation algorithms, which are capable of achieving reasonably good solutions fast enough in order to guarantee an acceptable level of performance under worst case interference conditions, is crucial in such environment. The focus of this paper is the transmit-power control in cognitive radio networks, considering a noncooperative framework. Moreover, tools from control theory are used to study both the equilibrium and transient behaviors of the network under dynamically varying conditions.

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来源
《Proceedings of the IEEE》 |2009年第5期|915-939|共25页
作者
PEYMAN SETOODEH; SIMON HAYKIN;
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作者单位

Cognitive Systems Laboratory, McMaster University, Hamilton, ON L8S 4K1, Canada;

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原文格式 PDF
正文语种英语
中图分类计量学;
关键词
Cognitive radio; functional differential equations (FDEs); hybrid dynamic systems (HDSs); iterative waterfilling algorithm (IWFA); piecewise affine (PWA) systems; projected dynamic systems (PDSs); robust optimization; transmit-power control; variational inequalities (VIs);

Robust Transmit Power Control for Cognitive Radio

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