Performance of differentially detected π/4 DQPSK in the presence of IQ phase imbalance

Author

Scarpa, M. ; Vogel, J. ; Stonick, J. ; Kiaei, S.

Author_Institution

Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA

Volume

4

fYear

2000

fDate

2000

Firstpage

645

Abstract

The effect of circuit level distortions on system level performance is becoming an important issue in optimizing the design of low power receivers. Circuit level distortions which in the past were insignificant in full power designs, must be accounted for in the link budgets of low power systems. In this paper, we present an analysis that demonstrates and quantifies the effect of one such distortion. We present a closed form expression for the BER of differentially detected π/4 DQPSK in the presence of AWGN and distorted by an IQ phase imbalance in the receiver

Keywords

AWGN; differential detection; digital radio; error statistics; phase shift keying; radio receivers; AWGN; BER; IQ phase imbalance; circuit level distortions; closed form expression; differential quadrature PSK; differentially detected π/4 DQPSK; low power receivers; system level performance; Amplitude modulation; Analog-digital conversion; Band pass filters; Baseband; Bit error rate; Circuits; Constellation diagram; Phase detection; Phase modulation; Quadrature phase shift keying;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ISCAS.2000.858834

Filename

858834