상세정보
학술대회
A New MIMO Algorithm for High Data Rate Transmission
- 발행일
- 200708
- 출처
- International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless) 2007, pp.1-5
- 협약과제
- 06MM1800, 3Gbps급 4G 무선 LAN 시스템 개발, 방승찬
- 초록
- In this paper, a receiver algorithm for an 8x8 MIMO system is considered for Giga-bps data transmission, in which the decoding complexity and latency are crucial factors for implementation of MIMO system with large number of transmit and receive antennae. To reduce computational complexity and the decoding latency, a 3-stage receiver algorithm is proposed. The MIMO receiver consists of multidimensional detection, partial interference cancellation and the weighted zero-forcing equalization, where the transmit antennae are divided into two group. The first group is encoded by a lower rate code and multidimensional search algorithm is used for demodulation and decoding, while the second group is encoded by higher rate code and weighted zero-forcing equalization is used. Once the first group is decoded successfully, they are cancelled out from the received vector for the decoding of the second group. The complexity and the error rate performance are investigated and compared with a well-known sphere decoding algorithm. © 2007 IEEE.
- KSP 제안 키워드
- Computational complexity, Data transmission, Error rate performance, MIMO receiver, MIMO system, Multidimensional search, Search Algorithm(GSA), Sphere decoding algorithm, Zero forcing(ZF), decoding complexity, high data rate transmission