Details
| Original language | English |
|---|---|
| Title of host publication | 19th International Conference on OFDM and Frequency Domain Techniques, ICOF 2016 |
| Publisher | VDE Verlag GmbH |
| Pages | 64-69 |
| Number of pages | 6 |
| ISBN (electronic) | 9783800742530 |
| Publication status | Published - 2016 |
| Event | 19th International Conference on OFDM and Frequency Domain Techniques, ICOF 2016 - Essen, Germany Duration: 25 Aug 2016 → 26 Aug 2016 |
Publication series
| Name | 19th International Conference on OFDM and Frequency Domain Techniques, ICOF 2016 |
|---|
Abstract
In this paper we propose a practical solution to implement the symbol request sharing (SRS) cooperative scheme in real systems. The SRS scheme is designed for systems with a source and a destination among a group of receivers. The idea of cooperation is that nearby receivers assist the destination in order to enhance its information reception and avoid a retransmission from the source if possible. The SRS scheme follows a request-answer strategy. Specifically, we evaluate SRS when quantization is considered. For an ideal case without quantization, SRS achieves spatial diversity by performing maximum ratio combining (MRC) on selected subcarriers of a coded OFDM-based system. However, it turns out that SRS fails when the shared information is quantized prior to its retransmission to the destination. To overcome this drawback the SRS-EQ scheme is introduced, which is equivalent to SRS. It performs a phase correction at the relays before information is shared. It is shown that SRS-EQ is a viable option for cooperation in real systems.
ASJC Scopus subject areas
- Engineering(all)
- Electrical and Electronic Engineering
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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19th International Conference on OFDM and Frequency Domain Techniques, ICOF 2016. VDE Verlag GmbH, 2016. p. 64-69 (19th International Conference on OFDM and Frequency Domain Techniques, ICOF 2016).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Cooperative request-answer schemes for mobile receivers in OFDM systems
AU - Samayoa, Y.
AU - Ostermann, J.
PY - 2016
Y1 - 2016
N2 - In this paper we propose a practical solution to implement the symbol request sharing (SRS) cooperative scheme in real systems. The SRS scheme is designed for systems with a source and a destination among a group of receivers. The idea of cooperation is that nearby receivers assist the destination in order to enhance its information reception and avoid a retransmission from the source if possible. The SRS scheme follows a request-answer strategy. Specifically, we evaluate SRS when quantization is considered. For an ideal case without quantization, SRS achieves spatial diversity by performing maximum ratio combining (MRC) on selected subcarriers of a coded OFDM-based system. However, it turns out that SRS fails when the shared information is quantized prior to its retransmission to the destination. To overcome this drawback the SRS-EQ scheme is introduced, which is equivalent to SRS. It performs a phase correction at the relays before information is shared. It is shown that SRS-EQ is a viable option for cooperation in real systems.
AB - In this paper we propose a practical solution to implement the symbol request sharing (SRS) cooperative scheme in real systems. The SRS scheme is designed for systems with a source and a destination among a group of receivers. The idea of cooperation is that nearby receivers assist the destination in order to enhance its information reception and avoid a retransmission from the source if possible. The SRS scheme follows a request-answer strategy. Specifically, we evaluate SRS when quantization is considered. For an ideal case without quantization, SRS achieves spatial diversity by performing maximum ratio combining (MRC) on selected subcarriers of a coded OFDM-based system. However, it turns out that SRS fails when the shared information is quantized prior to its retransmission to the destination. To overcome this drawback the SRS-EQ scheme is introduced, which is equivalent to SRS. It performs a phase correction at the relays before information is shared. It is shown that SRS-EQ is a viable option for cooperation in real systems.
UR - http://www.scopus.com/inward/record.url?scp=85073235913&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85073235913
T3 - 19th International Conference on OFDM and Frequency Domain Techniques, ICOF 2016
SP - 64
EP - 69
BT - 19th International Conference on OFDM and Frequency Domain Techniques, ICOF 2016
PB - VDE Verlag GmbH
T2 - 19th International Conference on OFDM and Frequency Domain Techniques, ICOF 2016
Y2 - 25 August 2016 through 26 August 2016
ER -