Title :
On Energy Detection for MIMO Decision Fusion in Wireless Sensor Networks Over NLOS Fading
Author :
Salvo Rossi, Pierluigi ; Ciuonzo, Domenico ; Kansanen, Kimmo ; Ekman, Torbjörn
Author_Institution :
Dept. of Electron. & Telecommun., Norwegian Univ. of Sci. & Technol. (NTNU), Trondheim, Norway
Abstract :
We analyze sufficiency and optimality of energy detection (ED) for decision fusion. The considered scenario assumes on-off keying (OOK), statistical channel state information and a fusion center (FC) equipped with multiple antennas. The fading is modeled through zero-mean Gaussian mixtures (GM) to deal with arbitrary non-line-of-sight (NLOS) environments. Theoretical findings are supported by numerical simulations.
Keywords :
Gaussian processes; MIMO communication; amplitude shift keying; antenna arrays; fading channels; mixture models; sensor fusion; signal detection; wireless sensor networks; FC; GM; MIMO decision fusion; NLOS fading; OOK; arbitrary non-line-of-sight environments; energy detection; fusion center; multiple antennas; numerical simulations; on-off keying; statistical channel state information; wireless sensor networks; zero-mean Gaussian mixtures; MIMO; Rayleigh channels; Receiving antennas; Vectors; Wireless sensor networks; Decision fusion; energy detection; multiple-input multiple-output (MIMO); non-line-of-sight (NLOS) fading; wireless sensor network (WSN);
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2014.2379714
