It is very important to achieve high performance in the SC-FDMA (single carrier frequency division multiple access) system that is used for LTE (long term evolution) and LTE-advanced system. To simultaneously resolve ICI(inter-subcarrier interference) and PAPR(peak to average power ratio) problem, focused on the two transmit(Tx) / one receive(Rx) antenna configuration, phase noise influence on the 2 1 SFBC(space frequency block coding) SC-FDMA system is first analyzed, then compared with MISO(multiple input single output) SC-FDMA using several selected ICI self-cancellation methods. SC-FDMA induces more interference problem than OFDM because of the DFT spreading phase offset mismatch caused by random phase noise. By using ICI self-cancellation methods, the system performance significantly improves only by simple data encoding. Simulation results show that in the SFBC SC-FDMA system, the ICI and SCI interference cannot be neglected because 2 1 SFBC SC-FDMA even make phase noise influence seriously due to the simultaneous generation of more SCI and ICI than 2 1 SC-FDMA only, so, interference compensation is necessary. It is found that 2 1 SC-FDMA with data-conjugate ICI selfcancellation method and 2 1 SC-FDMA with symmetric ICI self-cancellation method can achieve considerable performance improvement than 2 1 SFBC SC-FDMA system, besides, data-conjugate method is superior to the symmetric data-conjugate method.
보안공학연구지원센터(IJFGCN) [Science & Engineering Research Support Center, Republic of Korea(IJFGCN)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Future Generation Communication and Networking
간기
격월간
pISSN
2233-7857
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Future Generation Communication and Networking Vol.5 No.2