Abstract :
For pt. I see ibid., vol. 35, no. 7, p. 90, 1997. In Part I of this tutorial, the major elements that contribute to fading and their effects in a communication channel were characterized. In Part II, these phenomena are briefly summarized, and emphasis is then placed on methods to cope with these degradation effects. Two particular mitigation techniques are examined: the Viterbi equalizer implemented in the Global System for Mobile Communication (GSM), and the RAKE receiver used in CDMA systems built to meet Interim Standard 95 (IS-95)
Keywords :
Rayleigh channels; adaptive equalisers; cellular radio; code division multiple access; digital radio; fading; land mobile radio; maximum likelihood estimation; pseudonoise codes; radio receivers; spread spectrum communication; telecommunication standards; CDMA systems; GSM; Global System for MobiIe Communication; IS-95; Interim Standard 95; RAKE receiver; Rayleigh fading channels; Viterbi equalizer; communication channel; degradation effects; direct sequence spread spectrum systems; mitigation techniques; mobile digital communication systems; Communication channels; Degradation; Digital communication; Equalizers; Fading; GSM; Multiaccess communication; Multipath channels; Rayleigh channels; Viterbi algorithm;
