Title :
Performance of UWB PSK systems using fully saturated power amplifiers
Author :
Li, Jia ; Liu, Qingchong ; Taylor, Desmond P.
Author_Institution :
Sch. of Eng. & Comput. Sci., Oakland Univ., Rochester, MI, USA
fDate :
4/1/2006 12:00:00 AM
Abstract :
This paper studies the performance of ultra-wideband (UWB) radio communications systems employing phase shift keying (PSK) modulation and fully saturated power amplifiers through additive white Gaussian noise (AWGN) channel or Rayleigh fading channel. An impulse response method is provided to analyze the signal-to-noise ratio (SNR) degradation. Both convolutional code and turbo code are employed with the Viterbi decoding and the iterative decoding, respectively. The decoding algorithms are modified for the Rayleigh fading channel. Near optimal bit error rate (BER) performance is achieved when employing either convolutional code or turbo code. The simulation results match the derivation. Therefore, fully saturated power amplifiers can be employed in UWB PSK systems to significantly reduce radio cost, simplify radio circuit, and increase battery life for portable terminals.
Keywords :
AWGN channels; Rayleigh channels; Viterbi decoding; convolutional codes; error statistics; iterative decoding; phase shift keying; power amplifiers; radiocommunication; turbo codes; ultra wideband communication; AWGN channel; BER; Rayleigh fading channel; UWB-PSK system; Viterbi decoding; additive white Gaussian noise; bit error rate; convolutional code; impulse response method; iterative decoding; phase shift keying modulation; power amplifier; turbo code; ultra-wideband radio communication; AWGN; Bit error rate; Convolutional codes; Fading; Iterative decoding; Phase shift keying; Power amplifiers; Signal to noise ratio; Turbo codes; Ultra wideband technology; Bit error rate (BER); fading channel; modulation; nonlinear radio channel; ultra-wideband (UWB);
Journal_Title :
Selected Areas in Communications, IEEE Journal on
DOI :
10.1109/JSAC.2005.863883
