Abstract
Cooperative diversity has been recently presented as a new technique to improve the link performance of wireless communication systems. However, a loss in spectral efficiency due to half-duplex relaying can be a significant weak-point for high data rate communications. In this paper, we propose two-way amplify-and-forward relaying in conjunction with adaptive modulation in order to improve spectral efficiency of relayed communication systems while monitoring the required error performance. By using the ideal-scaled gain at the relay instead of the more practical power-scaled gain, we provide an approximate but a very accurate performance analysis of our proposed system. Our numerical examples show that the proposed system offers a considerable gain in the spectral efficiency and outage probability while satisfying the error rates requirements.
Original language | English (US) |
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Title of host publication | Proceedings of the 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 |
Pages | 1370-1374 |
Number of pages | 5 |
DOIs | |
State | Published - 2009 |
Externally published | Yes |
Event | 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 - Leipzig, Germany Duration: Jun 21 2009 → Jun 24 2009 |
Other
Other | 2009 ACM International Wireless Communications and Mobile Computing Conference, IWCMC 2009 |
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Country | Germany |
City | Leipzig |
Period | 06/21/09 → 06/24/09 |
Keywords
- Adaptive modulation
- Amplify-and-forward relaying
- Half-duplex transmission
- Two-way relaying
ASJC Scopus subject areas
- Computer Networks and Communications
- Computer Science Applications
- Software