Title :
Performance Analysis of Distributed Beamforming in a Spectrum Sharing System
Author :
Liang Yang ; Alouini, Mohamed-Slim ; Qaraqe, Khalid
Author_Institution :
Dept. of Electr. Eng., Jinan Univ., Guangzhou, China
Abstract :
In this paper, we consider a distributed beamforming scheme (DBF) in a spectrum sharing system where multiple secondary users share the spectrum with the licensed primary users under an interference temperature constraint. We assume that DBF is applied at the secondary users. We first consider optimal beamforming and compare it with the user selection scheme in terms of the outage probability and bit-error rate performance. Since perfect feedback is difficult to obtain, we then investigate a limited feedback DBF scheme and develop an outage probability analysis for a random vector quantization (RVQ) design algorithm. Numerical results are provided to illustrate our mathematical formalism and verify our analysis.
Keywords :
array signal processing; error statistics; radio spectrum management; BER; RVQ design algorithm; bit-error rate performance; distributed beamforming scheme; feedback DBF scheme; interference temperature constraint; licensed primary users; mathematical formalism; multiple secondary users; outage probability analysis; performance analysis; random vector quantization design algorithm; secondary users; spectrum sharing system; user selection scheme; Array signal processing; Bit error rate; Radio transmitters; Receivers; Signal to noise ratio; Vectors; Wireless communication;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2012 IEEE
Conference_Location :
Quebec City, QC
Print_ISBN :
978-1-4673-1880-8
Electronic_ISBN :
1090-3038
DOI :
10.1109/VTCFall.2012.6399014
