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| Content Provider | IET Digital Library |
|---|---|
| Author | Ghannam, Hedaia Darwazeh, Izzat |
| Abstract | For high data rates satellite systems, where multiple carriers are frequency division multiplexed with a slight overlap, the overall spectral efficiency is limited. This work applies highly overlapped carriers for satellite broadcast and broadband scenarios to achieve higher spectral efficiency. Spectrally efficient frequency division multiplexing (SEFDM) compresses subcarrier spacing to increase the spectral efficiency at the expense of orthogonality violation. SEFDM systems performance degrades compared to orthogonal signals, unless efficient interference cancellation is used. Turbo equalisation with interference cancellation is implemented to improve receiver performance for variable coding, compression and modulation/constellation proposals that may be applied in satellite communications settings. Such parameters may be set to satisfy pre-defined spectral efficiency values for a given quality index or associated application. Assuming low-density parity check coded data, the work proposes two approaches to receiver design: a simple matched filter approach and an approach utilising an iterative interference cancellation structure specially designed for SEFDM. Mathematical models and simulations studies are presented indicating promising gains to be achieved for SEFDM transmission with advanced transceiver architectures at the cost of increased complexity at the receiver. |
| Starting Page | 59 |
| Ending Page | 66 |
| Page Count | 8 |
| ISSN | 17518628 |
| Volume Number | 12 |
| e-ISSN | 17518636 |
| Issue Number | Issue 1, Jan (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/12/1 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2017.0911 |
| Journal | IET Communications |
| Publisher Date | 2017-11-27 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Advanced Transceiver Architectures Broadband Scenarios Code Communication Channel Equalisation And Identification Communication Switching Direct Broadcasting by Satellite Electromagnetic Compatibility Equaliser Frequency Division Multiplexing High Data Rates Satellite System Interference Interference Suppression Iterative Interference Cancellation Structure Low-density Parity Check Coded Data Matched Filter Modulation-constellation Proposals Orthogonality Violation Overlapped Carriers Parity Check Code Radio And Television Broadcasting Receiver Performance Satellite Broadcast Satellite Communication Satellite Communication System SEFDM Transmission Simple Matched Filter Spectrally Efficient Frequency Division Multiplexing Subcarrier Spacing Turbo Equalisation Variable Coding Variable Compression |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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