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| Content Provider | IET Digital Library |
|---|---|
| Author | Şimşir, Şakir Taşpinar, Necmi |
| Abstract | The direct effect of the pilot positions to the channel estimation performance gives an opportunity for minimising the estimation errors in multicarrier transmission technologies. To this end, harmony search (HS) algorithm is proposed for optimising the pilot distribution pattern in order to increase the performance of least squares estimator employed in orthogonal frequency division multiplexing-interleave division multiple access (OFDM-IDMA) system. Besides, the upper bound of mean square error (MSE) utilised as the fitness function of HS algorithm is obtained by using Gershgorin disc theorem to get rid of matrix inversion process required in MSE calculation. In the simulations, the authors’ proposed HS-based pilot optimisation technique proves to be an effective way of pilot design for OFDM-IDMA system by providing a clear performance superiority over the other considered pilot placement strategies. |
| Starting Page | 1155 |
| Ending Page | 1162 |
| Page Count | 8 |
| ISSN | 17518628 |
| Volume Number | 12 |
| e-ISSN | 17518636 |
| Issue Number | Issue 10, Jun (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/12/10 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2017.1365 |
| Journal | IET Communications |
| Publisher Date | 2018-02-14 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Advanced Pilot Design Procedure Channel Estimation Channel Estimation Performance Communication Channel Equalisation And Identification Communication Switching Gershgorin Disc Theorem Harmony Search Algorithm HS Algorithm Interleave Division Multiple Access System Interpolation And Function Approximation Least Squares Estimator Linear Algebra Matrix Inversion Matrix Inversion Process Mean Square Error Method Modulation And Coding Method MSE Calculation Multi-access System Multicarrier Transmission Technology Multiple Access Communication Numerical Analysis OFDM Modulation OFDM-IDMA System Optimisation Technique Orthogonal Frequency Division Multiplexing System Pilot Distribution Pattern Pilot Optimisation Technique Pilot Placement Strategy Pilot Positions Radio Link And Equipment Search Problem Statistics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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