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

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 Per...

Full description

Saved in:
Bibliographic Details
Main Authors: Akbar, N., Khan, A. A., Butt, F. Q., Saleem, M. S., Riffat, S., Iqbal, R.
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Bit error rate
Channel estimation
Energy Detection Spectrum Sensing
MIMO
MIMO-OFDM
OFDM
Receivers
Sensors
VBLAST Detection
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
DOI:10.1109/WMNC.2013.6549033