Cyclic prefix-based enhanced data recovery method
AssigneeKing Fahd University of Pertroleum & Minerals
InventorsTareq Al-Naffouri, Ahmed Abdulquadeer
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Abstract
The cyclic prefix-based enhanced data recovery method retains the cyclic prefix (CP) upon reception and routes the CP to a data detection module to enhance the operation of the orthogonal frequency division multiplexed (OFDM) receiver whether operating in the blind, semi-blind, training, or perfectly known channel modes. Processing of the OFDM symbol and the CP is performed in the data detector and obtains data recovery by computing a maximum likelihood estimation based on the CP and the OFDM symbols.
Claims16
A cyclic prefix-based enhanced data recovery method, comprising the steps of:
- receiving data including orthogonal frequency division multiplexed (OFDM) symbols transmitted through a wireless channel;
- in a detector circuit, separating a cyclic prefix from the received symbols;
- performing FFT of the received OFDM symbols without the cyclic prefix;
- and
- recovering the data by maximum likelihood estimation using the cyclic prefix and the received OFDM symbols.
A cyclic prefix-based enhanced data recovery method, comprising the steps of:
- receiving data including orthogonal frequency division multiplexed (OFDM) symbols transmitted through a wireless channel;
- in a detector circuit, separating a cyclic prefix from the received symbols;
- performing FFT of the received OFDM symbols without the cyclic prefix;
- recovering the data by a Genetic process using the cyclic prefix and the received symbols.
Dependencies are inferred from the claim text.