Decouple-and-forward relaying for dual-hop Alamouti transmissions
- Title
- Decouple-and-forward relaying for dual-hop Alamouti transmissions
- Author
- 김동우
- Keywords
- dual-hop Alamouti transmission; decouple-and-forward relaying; end-to-end BER; Rayleigh fading channels
- Issue Date
- 2008-02
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Citation
- IEEE COMMUNICATIONS LETTERS, v. 12, No. 2, Page.97-99
- Abstract
- In this letter, decouple-and-forward (DCF) relaying for dual-hop Alamouti transmissions is proposed as enhanced amplify-and-forward (AF) relaying to achieve spatial diversity gain especially provided by a two-antenna relay. DCF relaying that consists of decoupling, re-encoding and amplifying needs a little more complicated relay than AF relaying but a less complicated one than decode-and-forward (DF) relaying. Assuming uncorrelated Rayleigh fading channels, we derive a probability density function (PDF) of end-to-end signal-to-noise ratio (SNR) for the DCF system and provide its bit error rate (BER) performance. Numerical investigation shows that the analysis provided in this letter is exact and in dual-hop Alamouti transmissions, DCF achieves BER close to DF and even better BER when SNR is low.
- URI
- https://ieeexplore.ieee.org/document/4450654https://repository.hanyang.ac.kr/handle/20.500.11754/76810
- ISSN
- 1089-7798
- DOI
- 10.1109/LCOMM.2008.071573
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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