이동통신 채널에서 OFDM을 적용한 TCM방식 비교분석

다국어 초록 (Multilingual Abstract)

OFDM(Orthogonal Frequency Division Multiplexing) scheme can compensate for distortions caused by multipath delay spread and reduce the burst errors caused by the
Doppler effect since OFDM signals have long symbol durations. However, OFDM is required to be improved for high speed data transmission and large capacity. Therefore, coding schemes should be combined with OFDM.
In this paper, it was studied that the performance of OFDM transmission scheme was improved in mobile communication channel by applying TCM, which has advantages of error correction and bandwidth efficiency. Simulation was carried out for two TCM models with different code efficient length. By mapping two models to square 16QAM, the model with the code efficient length of 2 achieved 3dB better than the other for the BER of 10-3.
In conclusion, if we want to achieve a better performance with TCM in OFDM
applications, we should select a TCM with larger code efficient length.

목차 (Table of Contents)

• Ⅰ. 서론 1
• Ⅱ. 시스템 구성 2
• Ⅲ. 모의실험 결과 및 검토 4
• Ⅳ. 결론 5