Title :
Cognitive Radio Networks with Orthogonal Space-Time Block Coding and Multiuser Diversity
Author :
Liang Yang ; Qaraqe, Khalid ; Serpedin, Erchin ; Alouini, Mohamed-Slim ; Weiping Liu
Author_Institution :
Dept. of Electron. Eng., Guangdong Univ. of Technol., Guangzhou, China
Abstract :
This paper considers a multiuser spectrum sharing (SS) system operating in a Rayleigh fading environment and in which every node is equipped with multiple antennas. The system employs orthogonal space-time block coding at the secondary users. Under such a framework, the average capacity and error performance under a peak interference constraint are first analyzed. For a comparison purpose, an analysis of the transmit antenna selection scheme is also presented. Finally, some selected numerical results are presented to corroborate the proposed analysis.
Keywords :
Rayleigh channels; channel capacity; channel coding; cognitive radio; diversity reception; network coding; orthogonal codes; radio networks; radio spectrum management; radiofrequency interference; space-time block codes; transmitting antennas; Rayleigh fading environment; SS system; average channel capacity; cognitive radio networks; error performance; multiple antennas; multiuser diversity; multiuser spectrum sharing system; orthogonal space-time block coding; peak interference constraint; secondary users; transmit antenna selection scheme; Bit error rate; Block codes; Cognitive radio; Fading; Receivers; Transmitting antennas; Antenna selection; cognitive radio; multiuser diversity; space-time block coding (STBC);
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.022713.122812
