Title :
Joint Spectrum Sensing in Distributed MIMO Systems
Author :
Yu, Shuyang ; Wang, Xiangyang
Author_Institution :
Nat. Mobile Commun. Lab., Southeast Univ., Nanjing, China
Abstract :
In this paper, we consider a case where two distributed MIMO systems share the same spectrum. Each of them has to dynamically detect the spectrum of the other. The system model is established and the joint spectrum sensing scheme is studied. The optimal weighting factors are derived. Closed-form expressions of the probability of false alarm and sensing are provided. Simulation results show that the proposed joint sensing scheme can achieve much better sensing performance than that of the single-sensor scheme.
Keywords :
MIMO communication; optimisation; signal detection; distributed MIMO systems; false alarm probability; joint spectrum sensing; optimal weighting factors; signal detection; single-sensor scheme; Cognitive radio; Detectors; Joints; MIMO; Multiaccess communication; Wideband;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-8332-7
DOI :
10.1109/VETECS.2011.5956678
