We consider a hybrid direct-sequence frequency-hopped (DS/FH) code division multiple access (CDMA) communication system, where the transmission power and data rate are adapted relative to the channel variation. Instead of random frequency hopping, hopping pattern is adap- tively adjusted to obtain the maximum channel gain among available fre- quency slots. Transmission power and/or data rate are also adapted such that a target transmission quality is maintained. It is shown that the pro- posed scheme provides a higher average data rate than pure DS/CDMA with power and rate adaptations, subject to the identical average trans- mission power and bandwidth constraints.
목차
Abstract 1 Introduction 2 System Model 3 Power and Rate Adaptations in hybrid DS/FH CDMA 3.1 Power Adaptation 3.2 Combined Power and Rate Adaptation 4 Numerical Results and Discussions Acknowledgments References
키워드
hybrid DS/FHadaptive systemsRayleigh fading.
저자
Ye Hoon Lee [ Department of Electronic and IT Media Engineering, Seoul National University of Science and Technology ]
Dong Ho Kim [ Department of Electronic and IT Media Engineering, Seoul National University of Science and Technology ]
Corresponding author
보안공학연구지원센터(IJSH) [Science & Engineering Research Support Center, Republic of Korea(IJSH)]
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 Smart Home
간기
격월간
pISSN
1975-4094
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Smart Home Vol.7 No.5