Please use this identifier to cite or link to this item:
|Title:||Robust designs for MISO-based cognitive radio networks with primary user's partial channel state information|
|Source:||Zhangt, L., Liang, Y.-C., Xin, Y. (2008). Robust designs for MISO-based cognitive radio networks with primary user's partial channel state information. GLOBECOM - IEEE Global Telecommunications Conference : 4386-4390. ScholarBank@NUS Repository. https://doi.org/10.1109/GLOCOM.2008.ECP.841|
|Abstract:||Cognitive radio is an emerging technology improving the spectrum utilization efficiency in communication systems. In this paper, we are interested in a multiple-input single-output (MISO) based cognitive radio (CR) network where the secondary user (SU) shares the same frequency band with the primary user (PU). It is assumed that the SU transmitter (SU-Tx) has perfect channel information (CSI) from SU-Tx to SU receiver (SU-Rx), but partial CSI from SU-Tx to PU receiver. We propose a robust design method to determine the optimal transmission covariance of SU-Tx to maximize the rate of the SU while keeping the interference power to the PU less than a threshold with high probability. This problem is formulated as a semi-infinite programming (SIP) problem. Two algorithms are proposed to transform this SIP problem into a finite constraint problem, and it is shown that these algorithms obtain the optimal solution. Simulations are presented to validate the effectiveness of the proposed algorithms. © 2008 IEEE.|
|Source Title:||GLOBECOM - IEEE Global Telecommunications Conference|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Mar 7, 2018
checked on Mar 9, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.