Title :
Fast and accurate canceller on carrier super-positioning for VSAT frequency re-use
Author :
Ichikawa, Michihiro ; Hara, Takao ; Okada, Minoru ; Yamamoto, Heiichi ; Ando, Kiyotake
Author_Institution :
Commun. Lab., Nara Inst. of Sci. & Technol., Japan
Abstract :
This paper shows a design approach for a signal canceller for carrier super-positioning of VSAT satellite communications. The interference caused by the cancellation signal replica generation error has been studied in detail for both BPSK and QPSK schemes. How the phase error between signal and replica is sensitive to interference is investigated. We also propose a method for generating the replica very quickly by introducing a multi-component delay tracking code to measure the satellite round trip delay which is inevitable in generating a replica.
Keywords :
delay estimation; frequency allocation; phase shift keying; satellite communication; BPSK; QPSK; VSAT frequency re-use; VSAT satellite communications; cancellation signal replica generation error; carrier super-positioning signal canceller; interference; multicomponent delay tracking code; satellite round trip delay measurement; signal/replica phase error; Delay; Educational institutions; Extraterrestrial measurements; Frequency; Information science; Interference; Paper technology; Satellite communication; Signal design; Signal generators;
Conference_Titel :
Wireless Communications and Networking Conference, 2005 IEEE
Print_ISBN :
0-7803-8966-2
DOI :
10.1109/WCNC.2005.1424733
