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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Oyerinde, O.O. Mneney, S.H. |
| Copyright Year | 2013 |
| Description | Author affiliation: Sch. of Eng., Discipline of Electr., Electron. & Comput. Eng., Univ. of KwaZulu-Natal, Durban, South Africa (Oyerinde, O.O.; Mneney, S.H.) |
| Abstract | Combination of IDMA with Orthogonal Frequency Division Multiplexing (OFDM) transmission technique to form OFDM-IDMA system has been considered as a better option to Multicarrier-CDMA (MC-CDMA) systems. However, as the case with other multiple access schemes-based communication systems, availability of accurate estimate of channel state information (CSI) at the receiver end of the system remains a crucial factor for optimum performance of the OFDM-IDMA systems. In this paper we propose a linear algorithm for the implementation of the iterative channel estimation schemes OFDM-IDMA systems. In the scheme, a recursive minimum mean square error (RMMSE) algorithm is employed for the iterative channel estimation. The achievable results associated with the proposed RMMSE-based iterative channel estimator are documented in comparison with results associated with iterative channel estimator employing Least Mean Square (LMS), Normalized Least Mean Square (NLMS), and Variable Step Size Normalized Least Mean Square (VSSNLMS) algorithms. From the simulation results, it is evident that the proposed RMMSE-based iterative channel estimator outperforms the estimator based on the adaptive algorithms. |
| Sponsorship | IEEE Mauritius Subsect. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 259581 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781467359405 |
| ISSN | 21530033 |
| e-ISBN | 9781467359436 |
| DOI | 10.1109/AFRCON.2013.6757863 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-09-09 |
| Publisher Place | Mauritius |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | fading channel OFDM-IDMA iterative channel estimation Recursive MMSE adaptive algorithms |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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