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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Dorpinghaus, M. Ispas, A. Meyr, H. |
| Copyright Year | 2011 |
| Description | Author affiliation: Institute for Integrated Signal Processing Systems, RWTH Aachen University, 52056 Aachen, Germany (Ispas, A.; Meyr, H.) || Institute for Theoretical Information Technology, RWTH Aachen University, 52056 Aachen, Germany (Dorpinghaus, M.) |
| Abstract | We study the achievable rate with receivers based on synchronized detection and iterative code-aided channel estimation for stationary Rayleigh flat-fading channels. The main idea behind this type of receivers is that — additionally to the pilot symbols which are used for the initial channel estimation and coherent detection/decoding — the channel estimation is enhanced by iteratively feeding back reliability information on the data symbols acquired by the channel decoder. For a specific type of such a receiver, we derive an upper bound on the achievable rate. Based on an approximation of the upper bound, which is not a closed-form expression, we are able to upper-bound the possible performance gain when using this specific receiver based on code-aided channel estimation in comparison to receivers using synchronized detection with a solely pilot based channel estimation. Furthermore, we compare this approximate upper bound with a lower bound on the achievable rate with joint processing of data and pilot symbols given in [1]. In addition, we show which part of the mutual information between the transmitter and the receiver cannot be exploited by the given receiver structure using synchronized detection in combination with iterative code-aided channel estimation. |
| Starting Page | 517 |
| Ending Page | 521 |
| File Size | 197841 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781612844039 |
| ISSN | 21540225 |
| e-ISBN | 9781612844022 |
| e-ISBN | 9781612844015 |
| DOI | 10.1109/ISWCS.2011.6125412 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-11-06 |
| Publisher Place | Germany |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Fading Upper bound Channel estimation Receivers Synchronization Mutual information Iterative decoding |
| Content Type | Text |
| Resource Type | Article |
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