Pilot symbol assisted BPSK on Rayleigh fading channels with diversity: performance analysis and parameter optimization

|In this paper, the loss due to imperfect channel estimation is derived for pilot symbol assisted BPSK on fading channels with diversity. The presented approach, which holds for both narrowband and spread spectrum communication, further provides an analytical optimization of pilot symbol spacing. The loss due to channel estimation is demonstrated to be low if the maximum Doppler frequency is signi cantly less than the bit rate. Keywords| Code{division multiple access, spread spectrum, phase{shift keying, channel estimation, convolutional coding, Rayleigh fading channel