Title :
Impact of switching constraints on selection diversity performance
Author :
Ritcey, James A. ; Azizoglu, Murat
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
Selection diversity (SELDIV), in which the best of N channel outputs is selected, provides significant diversity gain for digital communications over fading channels. Classical SELDIV analysis assumes that the best channel is immediately selected, implying no constraint on the switching rate of the system. We obtain an exact result for the average BER, as a function of the time since the last switch. Our results assume BFSK modulation and Nakagami (1960) fading with an arbitrary correlation function, treating Rayleigh fading as a special case.
Keywords :
Rayleigh channels; correlation methods; digital radio; diversity reception; error statistics; phase shift keying; telecommunication switching; BFSK modulation; Nakagami fading; Rayleigh fading; average BER; channel outputs; correlation function; digital communications; diversity gain; fading channels; selection diversity performance; switching constraints; switching rate; Bit error rate; Degradation; Digital modulation; Diversity methods; Diversity reception; Fading; Gamma ray detection; Rayleigh channels; Stochastic processes; Switches;
Conference_Titel :
Signals, Systems & Computers, 1998. Conference Record of the Thirty-Second Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-5148-7
DOI :
10.1109/ACSSC.1998.750970
