Interference alignment (IA) can eliminate the interference among wireless nodes. In a multi-
input multi-output (MIMO) heterogeneous sensor network (HSN), nodes need to send out …

Cognitive radio (CR) has achieved increasing attention to improve the spectrum utilisation
by allowing the coexistence of primary users (PUs) and cognitive users (CUs) in the same …

The problem of joint beamforming and power allocation for cognitive multi-input multi-output
systems is studied via game theory. The objective is to maximize the sum utility of secondary …

Radio resource management is important for wireless communication networks. Game
theory has been extensively used to model, analyze, and design interactive behaviors and …

Power control is critical for wireless communications that allow spectrum sharing among
secondary users and primary users. In this paper, we derive an optimal distributed power …

Spectrum sensing is vital for secondary unlicensed nodes to coexist and avoid interference
with the primary licensed users in cognitive wireless networks. In this paper, we develop …

In this paper, we propose two power adjustment methods for cognitive radio networks. In the
first algorithm, the transmitter derives the transmission power with PID control in order to …

We consider a cognitive radio system consisting of several secondary networks and primary
user-terminals (primary-UTs). In a secondary network, a secondary-base station (secondary …

Cognitive radio (CR) has been recently proposed as a promising technology to achieve
efficient use of the frequency resources by allowing the coexistence of primary users (PUs) …

认知无线电MIMO 通信系统结合了认知无线电技术和MIMO 技术的双重优势,
能够极大的提高频谱利用率和传输速率. 针对认知无线电MIMO 系统的功率控制问题 …