Performance analysis of energy detection spectrum sensing using MIMO-OFDM VBLAST test bed

Author

Akbar, N. ; Khan, Adnan Ahmed ; Butt, F.Q. ; Saleem, Muhammad Shamoon ; Riffat, S. ; Iqbal, R.

Author_Institution

Coll. of Telecommun., Nat. Univ. of Sci. & Technol., Islamabad, Pakistan

fYear

2013

fDate

23-25 April 2013

Firstpage

1

Lastpage

4

Abstract

Practical performance analysis of a 2×2 Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system is performed with various receiver structures. In addition, performance of energy detection based spectrum sensing is also evaluated using Universal Software Radio Peripheral (USRP) based test-bed. Live Video is transmitted over MIMO-OFDM test bed. Zero Forcing - Vertical Bell Laboratories Layered Space-time (ZF-VBLAST) MIMO architecture is used at the receiver side. A comparison is made between bandwidth, spectrum utilization and data-rates for a Single Input Single Output (SISO) system and 2×2 MIMO system. Effect of using Gaussian Minimum Shift Keying (GMSK) and OFDM is also analyzed. Bit Error Rate (BER) performance of a 2×2 MIMO system using Zero Forcing (ZF) detection is compared with 2×2 MIMO system using ZF-VBLAST architecture. Receiver Operating Characteristics (ROC) curve for the energy detection based spectrum sensing is used to decide threshold for the detection of licensed user.

Keywords

MIMO communication; OFDM modulation; error statistics; minimum shift keying; radio spectrum management; signal detection; software radio; BER; GMSK; Gaussian minimum shift keying; MIMO-OFDM VBLAST test bed; ROC curve; SISO system; USRP based testbed; ZF detection; ZF-VBLAST MIMO architecture; bit error rate; data-rates; energy detection spectrum sensing; licensed user detection; live video; multiple input multiple output orthogonal frequency division multiplexing system; receiver operating characteristic curve; receiver structures; single input single output system; spectrum utilization; universal software radio peripheral based testbed; zero forcing-vertical Bell laboratories layered space-time MIMO architecture; Bandwidth; Bit error rate; Channel estimation; MIMO; OFDM; Receivers; Sensors; Energy Detection Spectrum Sensing; MIMO-OFDM; VBLAST Detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Mobile Networking Conference (WMNC), 2013 6th Joint IFIP

Conference_Location

Dubai

Print_ISBN

978-1-4673-5615-2

Electronic_ISBN

978-1-4673-5614-5

Type

conf

DOI

10.1109/WMNC.2013.6549033

Filename

6549033