Title :
BER performance of coherent-QPSK transmissions affected by phase noise from frequency converters
Author :
Hamaguchi, Kiyoshi ; Shoji, Yozo ; Ogawa, Hiroyo
Author_Institution :
Commun. Res. Lab., Independent Administrative Instn., Kanagawa, Japan
fDate :
6/23/1905 12:00:00 AM
Abstract :
In digital radio communication systems using the millimeter-wave band, phase noise created by local oscillators is a serious problem. This is because imperfect up/down conversion at transmitters and receivers using local oscillators degrades the bit-error rate (BER) performance, especially when many multipliers are used to get the millimeter-wave frequency. A BER derivation based on the probability of the frequency deviation and calculated and simulated BER performances of gray-coded coherent-QPSK transmission systems are reported. The results of a computer simulation show the validity of our approach
Keywords :
digital radio; error statistics; millimetre wave frequency convertors; phase noise; probability; quadrature phase shift keying; radio links; 60 GHz; BER performance; bit-error rate; coherent-QPSK transmissions; digital radio communication; frequency converters; frequency deviation; millimeter-wave band; phase noise; Bit error rate; Degradation; Digital communication; Frequency conversion; Local oscillators; Millimeter wave communication; Phase noise; Probability; Radio transmitters; Receivers;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.957152
