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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhang, Jiayi Gharavi, Hamid Hu, Bin |
| Abstract | Cooperative linear dispersion coding (LDC) can support arbitrary configurations of source nodes and destination nodes in virtual multi-input–multi-output systems. In this study, the authors investigate two spatial diversity applications of cooperative LDC for orthogonal frequency division multiplexing (OFDM)-based wireless sensor systems in order to achieve space–time/frequency (ST/SF) diversity gains when transmitting over time-/frequency-selective fading channels. Cooperative LDC-aided ST-/SF-OFDM is flexible in configuring various numbers of cooperative source nodes and time-slots or frequency-tones. Their results show that the ST-OFDM scheme is sensitive to exploiting diversity gains, subject to the impact of varying channel Doppler spreads; while the performance of SF-OFDM is mainly subject to delay spread. Specifically, when the system involves more than two cooperative nodes, the cooperative LDC-aided ST-/SF-OFDM outperforms the cooperative orthogonal block codes (e.g. Tarokh's codes) aided ST-/SF-OFDM, when communicating over a higher Doppler/delay spread. |
| Starting Page | 138 |
| Ending Page | 143 |
| Page Count | 6 |
| ISSN | 20436386 |
| Volume Number | 6 |
| e-ISSN | 20436394 |
| Issue Number | Issue 4, Aug (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-wss/6/4 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-wss.2015.0033 |
| Journal | IET Wireless Sensor Systems |
| Publisher Date | 2016-08-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Channel Coding Channel Doppler Spreads Code Cooperative Communication Cooperative LDC-aided ST-SF-OFDM Cooperative Linear Dispersion Coding Cooperative Source Nodes Cooperative Space-time-frequency Diversity Delay Spread Destination Nodes Diversity Reception Fading Channel Frequency-tones Linear Code MIMO Communication Mobile Multipath Channel Multipath Channel OFDM Modulation OFDM-based Wireless Sensor System Orthogonal Frequency Division Multiplexing System Spatial Diversity ST-SF Diversity Gain Time-frequency-selective Fading Channel Time-Slot Virtual Multiinput-multioutput System Wireless Sensor Network |
| Content Type | Text |
| Resource Type | Article |
| Subject | Industrial and Manufacturing Engineering |
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