Optimal Resource Allocation for MIMO Ad Hoc Cognitive Radio Networks

被引：20
|
作者：
Kim, Seung-Jun [1 ]
Giannakis, Georgios B. [1 ]
机构：
[1] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA
来源：
2008 46TH ANNUAL ALLERTON CONFERENCE ON COMMUNICATION, CONTROL, AND COMPUTING, VOLS 1-3 | 2008年
关键词：
D O I：
10.1109/ALLERTON.2008.4797533
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Maximization of the weighted sum-rate of secondary users (SUs) possibly equipped with multi-antenna transmitters and receivers is considered in the context of cognitive radio (CR) networks with coexisting primary user(s) (PU). Total interference power received at the primary receiver is constrained to maintain reliable communication for the PU. An interference channel configuration is considered for ad hoc networking, where the receivers treat the interference from undesired transmitters as noise. Without the CR constraint, a distributed algorithm is developed to obtain (at least) a locally optimal solution. With the CR constraint, a semi-distributed algorithm is also introduced along with an alternative centralized algorithm based on geometric programming and network duality.
引用
收藏
页码：39 / 45
页数：7
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