Performance Analysis of Two-Way Amplify and Forward Relaying with Adaptive Modulation over Multiple Relay Network
- Authors
- Hwang, Kyu-Sung; Ko, Young-Chai; Alouini, Mohamed-Slim
- Issue Date
- 2월-2011
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Two-way relaying; amplify-and-forward relaying; best relay selection and adaptive modulation
- Citation
- IEEE TRANSACTIONS ON COMMUNICATIONS, v.59, no.2, pp.402 - 406
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON COMMUNICATIONS
- Volume
- 59
- Number
- 2
- Start Page
- 402
- End Page
- 406
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/113101
- DOI
- 10.1109/TCOMM.2010.111710.090617
- ISSN
- 0090-6778
- Abstract
- In this letter, 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. We also consider a multiple relay network where only the best relay node is utilized so that the diversity order increases while maintaining a low complexity of implementation as the number of relays increases. Based on the best relay selection criterion, we offer an upper bound on the signal-to-noise ratio to keep the performance analysis tractable. Our numerical examples show that the proposed system offers a considerable gain in spectral efficiency while satisfying the error rate requirements.
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