DocumentCode :
359624
Title :
An interference canceling receiver with differential frames for high frequency usage CDMA systems
Author :
Tomita, Mitsuhiro ; Kuroyanagi, Noriyoshi ; Suehiro, Naoki ; Matsufuji, Shinya ; Ishikawa, Hirokazu
Author_Institution :
Tokyo Univ. of Technol., Japan
Volume :
1
fYear :
2000
fDate :
2000
Firstpage :
704
Abstract :
A new signal demodulation system for CDMA receivers is proposed. This system has an effective function of canceling the interference noise components in the received symbol frames. For a target symbol frame to be detected, the differential frames are produced, each of which is made by subtracting one of the neighboring symbol frames from the target frame. The interference noise being left in some of the differential frames is much less than that in the target frame. By demodulating only such noise cancelled differential frames that have been estimated with effective analyzing sequences, the information conveyed on the target frame with a heavy interference can be detected. The simulation indicates powerful canceling performance for all the possible interference disturbance is achieved
Keywords :
code division multiple access; demodulation; interference suppression; multipath channels; multiuser channels; radio receivers; radiofrequency interference; spread spectrum communication; CDMA receivers; analyzing sequences; differential frames; high frequency usage CDMA systems; interference canceling receiver; interference disturbance; interference noise; interference noise components; multipath; received symbol frames; signal demodulation system; simulation; spreading code; target symbol frame detection; Baseband; Computer simulation; Demodulation; Feedback; Frequency; Information analysis; Interference cancellation; Mean square error methods; Multiaccess communication; Noise cancellation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
Type :
conf
DOI :
10.1109/PIMRC.2000.881512
Filename :
881512
Link To Document :
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