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|Title:||Blind channel estimation for multi-rate multicarrier DS/CDMA communications|
|Authors:||Huang, L. |
|Source:||Huang, L.,Zheng, F.-C. (2005-06). Blind channel estimation for multi-rate multicarrier DS/CDMA communications. International Journal of Wireless Information Networks 12 (2) : 69-78. ScholarBank@NUS Repository. https://doi.org/10.1007/s10776-004-2401-0|
|Abstract:||Multi-rate multicarrier DS/CDMA is a potentially attractive multiple access method for future wireless communications networks that must support multimedia, and thus multi-rate, traffic. Several receiver structures exist for single-rate multicarrier systems, but little has been reported on multi-rate multicarrier systems. Considering that high-performance detection such as coherent demodulation needs the explicit knowledge of the channel, based on the finite-length chip waveform truncation, this paper proposes a subspace-based scheme for timing and channel estimation in multi-rate multicarrier DS/CDMA systems, which is applicable to both multicode and variable spreading factor systems. The performance of the proposed scheme for these two multi-rate systems is validated via numerical simulations. The effects of the finite-length chip waveform truncation on the performance of the proposed scheme is also analyzed theoretically. © 2005 Springer Science+Business Media, Inc.|
|Source Title:||International Journal of Wireless Information Networks|
|Appears in Collections:||Staff Publications|
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