WINDOW POSITION OPTIMIZATION FOR PILOT-AIDED OFDM SYSTEM
First Claim
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1. A method of reducing aliasing in an orthogonal frequency division multiplexing (OFDM) system, the method comprising:
- selecting at least one window, wherein the window minimizes a difference between a first channel estimate based on a first pilot signal and a second channel estimate based on a second pilot signal.
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Abstract
A window position optimization for a pilot-aided OFDM system is disclosed. A method of reducing aliasing in an orthogonal frequency division multiplexing (OFDM) system, using window optimization and pilots comprises receiving an RF signal including a pilot, generating a channel frequency response estimate, interpolating the channel estimate to calculate a pilot carrier frequency response, and dynamically selecting a window to capture a channel impulse response to prevent aliasing.
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18 Claims
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1. A method of reducing aliasing in an orthogonal frequency division multiplexing (OFDM) system, the method comprising:
selecting at least one window, wherein the window minimizes a difference between a first channel estimate based on a first pilot signal and a second channel estimate based on a second pilot signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An orthogonal frequency division multiplexing (OFDM) receiver, the OFDM receiver comprising:
a synchronization and channel estimation (SCE) block configured to select at least one window, wherein the window minimizes the difference between a first channel estimate based on a first pilot signal and a second channel estimate based on a second pilot signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A machine readable storage medium having a stored set of instructions executable by a machine, the instructions when executed are adapted to perform operations comprising:
select at least one window, wherein the window minimizes the difference between a first channel estimate based on a first pilot signal and a second channel estimate based on a second pilot signal.
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18. A computer-readable medium containing a first set of instructions adapted to create a processor, wherein the processor is configured to implement a second set of instructions, the second set of instructions comprising:
instructions to select at least one window, wherein the window minimizes the difference between a first channel estimate based on a first pilot signal and a second channel estimate based on a second pilot signal
Specification