Abstract
In this paper, we design complementary codesets that significantly improve the quality of channel estimation in orthogonal frequency division multiplexing (OFDM) communication systems, with a focus on the recent MB-OFDM ultrawideband (UWB) standard. The proposed time-domain OFDM channel estimation technique incurs only a nominal increase in computational complexity and is able to be readily retrofitted into the existing MB-OFDM standard. The underlying complementary codesets, found via an evolutionary algorithm, combine with the existing preamble synchronization sequences to yield asymptotically ideal auto-correlation functions (ACFs). We show how improvements exceeding 1 dB can be achieved in end-to-end packet error rate relative to conventional zero-forcing OFDM equalization.
Original language | English |
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Title of host publication | 2006 International Symposium on Communications and Information Technologies, ISCIT |
Pages | 623-628 |
Number of pages | 6 |
DOIs | |
Publication status | Published - 2006 |
Event | 2006 International Symposium on Communications and Information Technologies, ISCIT - Bangkok, Thailand Duration: 18 Oct 2006 → 20 Oct 2006 |
Other
Other | 2006 International Symposium on Communications and Information Technologies, ISCIT |
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Country/Territory | Thailand |
City | Bangkok |
Period | 18/10/06 → 20/10/06 |