A scalar MSDD with multiple antenna reception of Differential Space-Time π/2-Shifted BPSK Modulation

• 발행기관: 한국항해항만학회
• 저자명: Jae-Hyung Kim Seung-Wook Hwang Jung-Keun Kim Yong-Jae Kim
• 간행물 정보: 『한국항해항만학회지』제30권 제2호, 167~172쪽, 전체 6쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 2006.03.30

영문 초록

In this paper, the issue of blind detection of Alamouti-type differential space-time (ST) π/2-shifted BPSK modulation in static Rayleigh fading channels is considered. We introduce a novel transformation to the received signal from each receiver antenna such that this binary ST modulation, which has a second-order transmit-diversity, is equivalent to QPSK modulation with second-order receive-diversity. The pre-detection combining of the result of transformation allows us to apply a low complexity detection technique specifically designed for receive-diversity, namely, scalar multiple-symbol differential detection (MSDD) With receiver complexity proportional to the observation window length, our receiver can achieve the performance 1.5dB better than that of conventional differential detection ST and O.5dB worse than that of a coherent maximum ratio combining receiver (with differential decoding) approximately.

목차

1. Introduction

2. Differential Space-Time π/2-Shifted BPSK

3. Coherently-Combined Scalar ST -MSDD Receiver

4. Results

5. Conclusion

키워드

MSDD Space time modulation