Abstract
New channel estimation technique is proposed for multiband orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) systems. Several steps have been carried out to achieve this purpose. In first step, refined least square (LS) channel estimation is found out by using subspace-based narrowband interference (NBI) estimation method with prilimonary LS channel. In second step, low rank least square minimum mean squared error (LMMSE) channel estimation is performed using this refined LS channel estimation. Finally, Blackman windowing is applied on low rank LMMSE channel to reduce the spectral leakage and hence to increase the channel estimation accuracy. Before starting the actual channel estimation, an ICI mitigation filter is used to minimize the reduction of signal-to-interference ratio (SIR) due to imperfect frequency synchronization. Link level simulation (LLS) urges that our proposed technique has improved performance.
Original language | English |
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Title of host publication | 2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Number of pages | 6 |
ISBN (Electronic) | 9781424437092 |
ISBN (Print) | 9781424437085 |
DOIs | |
Publication status | Published - 14 Oct 2010 |
Externally published | Yes |
Event | 6th International Conference on Wireless Communications, Networking and Mobile Computing - Chengdu, China Duration: 23 Sep 2010 → 25 Sep 2010 Conference number: 6 |
Publication series
Name | International Conference on Wireless Communications, Networking and Mobile Computing |
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Publisher | IEEE |
ISSN (Print) | 2161-9646 |
ISSN (Electronic) | 2161-9654 |
Conference
Conference | 6th International Conference on Wireless Communications, Networking and Mobile Computing |
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Abbreviated title | WiCOM 2010 |
Country/Territory | China |
City | Chengdu |
Period | 23/09/10 → 25/09/10 |