A Study on FTN Decoding Method for High Throughput Satellite Communication

Kwon, Hae-Chan; Jung, Ji-Won

Journal of Navigation and Port Research 2014;38(3):211-216.
Published online June 30, 2014.

고전송율 위성통신을 위한 FTN 신호 복호 기법 연구

권해찬, 정지원

A Study on FTN Decoding Method for High Throughput Satellite Communication

Hae-Chan Kwon, Ji-Won Jung

Abstract

In this paper, high throughput method is studied to provide floating objects with broadband service as ship by using satellite. In recent, satellite broadcastings standard is based on DVB-S3 for communication service using wireless device on navigation communication by satellite. LDPC codes are iterative coding algorithm proposed in DVB-S3. In this paper, FTN technique is applied to LDPC codes with 8-PSK modulation and then present the method to alleviate performance degradation due to FTN through BICM-ID. BICM-ID is the method to improve performance by calculating a new LLR from hard-decision value of decoder output. DVB-S2 system with 8-PSK modulation and FTN technique based on iterative decoding had a better performance than DVB-S2 with 8-PSK modulation and FTN technique over Gaussian channels.

Key Words: 8-PSK 변조;경판정 Satellite communication;Navigation communication;Iterative decoding;LDPC codes;8-PSK modulation;Hard decision;FTN;BICM-ID