상세정보
학술지
Symbol Error Rate of MIMO Broadcast Scheduling Systems with Partial Channel State Information
- 발행일
- 201106
- 출처
- IEEE Communications Letters, v.15 no.6, pp.638-640
- ISSN
- 1089-7798
- 출판사
- IEEE
- 협약과제
- 11PR3300, 10GHz 이하 대역에서 Dynamic Spectrum Access를 위한 상호 공존성(Coexistence) 기준 연구, 정병장
- 초록
- In this paper, we investigate the impact of partial channel state information (CSI) on the symbol error rate (SER) in a MIMO broadcast scheduling system. In this scheduling system, each transmit antenna is allocated based on scalar feedback information, which contains the largest effective signal to noise ratio (SNR) value with index for all user terminals. Exact closed-form expressions of the SER for the M-ary QAM and M-ary PSK modulations are presented. Using an asymptotic approach, we quantify the diversity order and SNR gain of the SER for the MIMO broadcast scheduling system employing scalar feedback information. From analysis results, we show insight into how the partial CSI affects the diversity order and SNR gain in the scheduling system. We verify the analytical results through simulation results. © 2011 IEEE.
- KSP 제안 키워드
- Broadcast Scheduling, Channel State Information(CSI), Closed-form expressions, Diversity Order, Feedback information, M-ary PSK, M-ary QAM, Partial CSI, Partial channel state information, Signal noise ratio(SNR), Signal-to-Noise