Title :
Diversity selection using coding in a portable radio communications channel with frequency-selective fading
Author :
Chang, Li Fung ; Chuang, Justin C.
Author_Institution :
Bellcore, Red Bank, NJ, USA
fDate :
1/1/1989 12:00:00 AM
Abstract :
It is shown that the degradation in the performance of wideband digital transmission systems due to intersymbol interference can be reduced by utilizing diversity selection using coding. A BCH (31, 21, 5) double-error-correcting code and QPSK (quadrature-phase-shift-keying) modulation with coherent detection are used for this study. The probability of word error is taken to be the measure of system performance. Analytic expressions are derived for the word error probability; these expressions simplify the simulation processes. It is found that a diversity selection algorithm using coding can reduce the floor of word error probability, and hence increase the dynamic range of received power before the word error probability reaches that floor
Keywords :
diversity reception; encoding; error correction codes; fading; mobile radio systems; telecommunication channels; BCH code; QPSK; Rayleigh fading; coding; coherent detection; diversity selection; double-error-correcting code; frequency-selective fading; intersymbol interference; portable radio communications channel; quadrature-phase-shift-keying; wideband digital transmission systems; word error probability; Analytical models; Degradation; Dynamic range; Error probability; Intersymbol interference; Modulation coding; Quadrature phase shift keying; Radio communication; System performance; Wideband;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
