Abstract
In this paper an iterative channel estimation technique for a mobile fourth generation coherent orthogonal frequency division multiplexing (OFDM) system is proposed. Coherent detection dictates that a per-subband estimate of the frequency response of the channel is generated for each OFDM symbol. This is often achieved by inserting pilot symbols amongst the data symbols in the OFDM modulation grid and interpolating accordingly. This paper proposes a lower complexity channel estimation method that exploits coding gain to achieve a channel estimate that yields an overall system performance that is shown to be comparable to the scattered pilot system, but with only one initial training sequence. A tracking algorithm is proposed which improves performance at high mobile velocities
Translated title of the contribution | Data-derived iterative channel estimation with channel tracking for a mobile fourth generation wide area OFDM system |
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Original language | English |
Title of host publication | Global Telecommunications Conference, 2003 (Globecom 2003) |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 804 - 808 |
Number of pages | 4 |
Volume | 2 |
ISBN (Print) | 0780379748 |
DOIs | |
Publication status | Published - Dec 2003 |
Event | Global Telecommunications Conference, 2003 (Globecom 2003) - San Francisco, United States Duration: 1 Dec 2003 → … |
Conference
Conference | Global Telecommunications Conference, 2003 (Globecom 2003) |
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Country/Territory | United States |
City | San Francisco |
Period | 1/12/03 → … |
Bibliographical note
Conference Proceedings/Title of Journal: IEEE Global Telecommunications Conference, 2003 (GLOBECOM '03)Rose publication type: Conference contribution
Sponsorship: The authors would like to acknowledge the financial support of the Engineering and Physical Sciences Research Council (EPSRC) and the financial and technical support of
Toshiba Research Europe Ltd, Bristol
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Keywords
- fourth generation
- 4G
- iterative
- data derived
- channel estimation
- OFDM