시공간 M-ary 직교 Walsh 수열 변조 = Space-Time M-ary Orthogonal Walsh Sequence Keying

국문 초록 (Abstract)

본 논문에서는 수신기에서 채널 추정을 필요로 하지 않는 MWSK (M-ary orthogonal Walsh sequence keying)를 적용한 ST-MWSK (space-time MWSK)를 제안한다. ST-MWSK의 noncoherent ML (maximum-likelihood) 검출기의 계산 복잡도는 기존의 ST-FSK (ST frequency-shift keying) 방식에 비해 크게 줄어든다. 또한 ST-MWSK는 ST-FSK와 거의 동일한 성능을 나타낸다.

다국어 초록 (Multilingual Abstract)

In this paper, we propose ST-MWSK (space-time M-ary orthogonal Walsh sequence keying) employing MWSK, which does not require channel estimation at the receiver. The computational complexity for the noncoherent ML (maximum-likelihood) detector of ST-MWSK is significantly reduced compared to that of ST-FSK (ST frequency-shift keying). Also, the performance of ST-MWSK is virtually identical to that of ST-FSK.

목차 (Table of Contents)

• 요약
• Abstract
• Ⅰ. 서론
• Ⅱ. 시스템 모델 및 ST-FSK
• Ⅲ. 제안하는 ST-MWSK
• Ⅳ. 전산 실험 결과
• Ⅴ. 결론
• 참고문헌
• 저자소개

참고문헌 (Reference)

1 B. M. Hochwald, "Unitary space-time modulation for multiple-antenna communications in Rayleigh fading" 46 (46): 543-564, 2000

2 G. Leus, "Space-time frequency-shift keying" 52 (52): 346-349, 2004

3 V. Tarokh, "Space-time codes for high data rate wireless communication: Performance criterion and code construction" 44 (44): 744-765, 1998

4 V. Tarokh, "Space-time block codes from orthogonal designs" 45 (45): 1456-1467, 1999

5 G. Leus, "Space-time FSK for slow frequency-hopping multiple access" 2002

6 전경훈, "Performance Analysis of Frequency-Hop Spread-Spectrum Multiple-Access Networks" 8 (8): 27-37, 1992