Title :
Complex spherical modulation for noncoherent communications
Author :
Varanasi, Mahesh K. ; McCloud, Michael L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
We examine the problem of designing complex, equal energy, signal constellations for the noncoherent additive white Gaussian noise communication channel. We derive an asymptotic performance criterion that may be used as a constraint in building correlated signals set for use with the maximum likelihood noncoherent detector. We present an iterative update design procedure for obtaining bandwidth-efficient signal sets under a constraint on the dimension of the signal space
Keywords :
AWGN channels; correlation methods; iterative methods; maximum likelihood detection; modulation; signal synthesis; additive white Gaussian noise; asymptotic performance criterion; bandwidth-efficient signal sets; complex signal constellations design; complex spherical modulation; correlated signals set; correlation matrix; equal energy signal constellations; iterative update design procedure; maximum likelihood noncoherent detector; noncoherent AWGN communication channel; signal space dimension constraint; AWGN; Additive white noise; Bandwidth; Buildings; Communication channels; Constellation diagram; Envelope detectors; Frequency shift keying; Signal design; Signal generators;
Conference_Titel :
Information Theory, 2000. Proceedings. IEEE International Symposium on
Conference_Location :
Sorrento
Print_ISBN :
0-7803-5857-0
DOI :
10.1109/ISIT.2000.866455
