Earticle

초록

영어

In this paper, a practical multi-packet reception technique is proposed for wireless ad hoc networks in which concurrent transmissions generally occur. In practical systems, these transmissions are performed without pre-compensation of time and frequency offsets before transmission due to decentralized nature of ad hoc networks. We first derive an optimal asynchronous joint detection (OAJD) technique for concurrent transmissions by considering time and frequency offsets among the multiple received packets. Furthermore, we propose a suboptimal asynchronous joint detection (SAJD) technique with log-likelihood ratio by utilizing the fact that practical pulse-shaping filters including raised cosine filter fall down beyond the number of symbol times. The proposed SAJD yields better performance than that of the successive interference cancellation (SIC) technique which successively decodes a packet with the strongest signal and cancels a decoded packet from multiple received packets.

목차

Abstract
 1. Introduction
 2. System Model
 3. Multi-packet Reception with Joint Detection
 4. Numerical Examples
 5. Conclusion
 Acknowledgements
 References

키워드

저자

• Bang Chul Jung [ Department of Information and Communication Engineering, Gyeongsang National University, Korea ]
• Yong-Up Jang [ Agency for Defense Development, Korea ]
• Min Suk Kang [ Department of Electrical and Computer Engineering, Carnegie Mellon University, USA ]
• Tae-Won Ban [ Department of Information and Communication Engineering, Gyeongsang National University, Korea ] corresponding author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Control and Automation

• 간기

  월간

• pISSN

  2005-4297

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605