상세정보
학술지
Optimum rate allocation for two-class services in CDMA smart antenna systems
- 저자
- 김일민, Hyung-Myung Kim, 권동승
- 발행일
- 200305
- 출처
- IEEE Transactions on Communications, v.51 no.5, pp.810-816
- ISSN
- 0090-6778
- 출판사
- IEEE
- 협약과제
- 03MM1200, 2.3GHz 휴대 인터넷 기술 표준화 연구, 권동승
- 초록
- Transmission bit rates are optimized for two-class traffic in variable spreading gain code-division multiple-access systems with antenna arrays. In an array antenna system, the interference levels experienced by the users belonging to different beams are not the same. Thus, it is not efficient to allocate the same rates to all the data users even though they belong to a cell. Considering this, an optimum rate allocation scheme is proposed for delay-tolerant data users. Additionally, we also propose the optimum rate allocation scheme for voice and data users when a packet scheduling scheme is considered. Numerical results show that, in array antenna systems, the proposed schemes considerably outperform the conventional scheme designed for omniantenna systems.
- KSP 제안 키워드
- Allocation scheme, Array antenna system, Belong to, Code division Multiple Access(CDMA), Delay-Tolerant, Numerical results, Packet scheduling, Scheduling Scheme, Smart antenna system, antenna array, distributed antenna systems(DAS)