Title :
Effect of DC offset on performance of differentially detected π/4 DQPSK
Author :
Huang, Shanjin ; Stonick, J.T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
The effect of circuit level distortions on system level performance is becoming an important issue in optimizing the design of low power direct conversion receivers. Circuit level distortions must be accounted for in the link budgets of low power systems. In this paper, we derive an expression for the BER of differentially detected π/4 DQPSK signal in the presence of DC offset for AWGN and Rayleigh fading channels. The expressions are verified via agreement with simulation
Keywords :
AWGN channels; Rayleigh channels; differential detection; low-power electronics; quadrature phase shift keying; AWGN channels; BER; DC offset; Rayleigh fading channels; circuit level distortions; differentially detected π/4 DQPSK; link budgets; low power direct conversion receivers; system level performance; AWGN; Bit error rate; Circuit simulation; Constellation diagram; Design optimization; Energy consumption; Fading; Power system simulation; Signal detection; System performance;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.858862
