Details
| Original language | English |
|---|---|
| Qualification | Doctor of Engineering |
| Awarding Institution | |
| Supervised by |
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| Date of Award | 18 Feb 2019 |
| Place of Publication | Hannover |
| Publication status | Published - 2019 |
Abstract
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Hannover, 2019. 126 p.
Research output: Thesis › Doctoral thesis
}
TY - BOOK
T1 - Improving spectral efficiency using hybrid system solutions
AU - Le Thi, Chung
PY - 2019
Y1 - 2019
N2 - As frequency bands become increasingly crowded, one of the major research challenges for future wireless communication networks is how to use the radio frequency bands more efficiently. In wireless communication networks, spectral efficiency can be improved either through frequency reuse technologies such as cognitive radio and multi-user techniques or by using technologies to increase the data rate. However, in this regard there is still room for further improvements, and thus, development of novel hybrid solution approaches to enhance spectral efficiency for future wireless communication networks is put into the focus of this dissertation. In this thesis, a multi-tier heterogeneous network with macro cells, small cells and relays is addressed. In order to improve spectral efficiency in a single carrier system, the non-orthogonal transmission scheme Faster-than Nyquist (FTN) signaling is investigated. Furthermore, novel hybrid interference mitigation approaches to achieve a spectral efficiency improvement in multi-user multicarrier Multiple-Input and Multiple-Output (MIMO) systems by using cognitive radio and relay technology are proposed.
AB - As frequency bands become increasingly crowded, one of the major research challenges for future wireless communication networks is how to use the radio frequency bands more efficiently. In wireless communication networks, spectral efficiency can be improved either through frequency reuse technologies such as cognitive radio and multi-user techniques or by using technologies to increase the data rate. However, in this regard there is still room for further improvements, and thus, development of novel hybrid solution approaches to enhance spectral efficiency for future wireless communication networks is put into the focus of this dissertation. In this thesis, a multi-tier heterogeneous network with macro cells, small cells and relays is addressed. In order to improve spectral efficiency in a single carrier system, the non-orthogonal transmission scheme Faster-than Nyquist (FTN) signaling is investigated. Furthermore, novel hybrid interference mitigation approaches to achieve a spectral efficiency improvement in multi-user multicarrier Multiple-Input and Multiple-Output (MIMO) systems by using cognitive radio and relay technology are proposed.
U2 - 10.15488/4938
DO - 10.15488/4938
M3 - Doctoral thesis
CY - Hannover
ER -