System, transmitter, method, and computer program product for utilizing an adaptive preamble scheme for multi-carrier communication systems
First Claim
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1. A system for wirelessly communicating a data packet comprising a known preamble and a data payload using a multi-carrier signal, the system comprising:
- a transmitter comprising a processing element capable of applying a performance improvement characteristic to the known preamble and to the data payload prior to transmission of the preamble and the data payload; and
a receiver comprising a processing element capable of receiving the preamble and the data payload, the processing element further capable of estimating a channel through which the preamble and the data payload were transmitted and estimating the performance improvement characteristic, wherein both estimations are based on comparing the received preamble to the known preamble, the processing element further capable of estimating the data payload based on the estimated channel and the estimated performance improvement characteristic.
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Abstract
A system, transmitter, method, and computer program product apply a performance improvement characteristic, such as phase rotation or power allocation, to both a known preamble and a data payload of a transmitted data packet, such that existing multi-carrier receivers are capable of decoding the data payload with the performance improvement characteristic applied. The performance improvement characteristic is applied by vector-matrix multiplication of the preamble and the data payload by the performance improvement characteristic.
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Citations
21 Claims
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1. A system for wirelessly communicating a data packet comprising a known preamble and a data payload using a multi-carrier signal, the system comprising:
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a transmitter comprising a processing element capable of applying a performance improvement characteristic to the known preamble and to the data payload prior to transmission of the preamble and the data payload; and
a receiver comprising a processing element capable of receiving the preamble and the data payload, the processing element further capable of estimating a channel through which the preamble and the data payload were transmitted and estimating the performance improvement characteristic, wherein both estimations are based on comparing the received preamble to the known preamble, the processing element further capable of estimating the data payload based on the estimated channel and the estimated performance improvement characteristic. - View Dependent Claims (2, 3, 4, 5)
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6. A transmitter for wirelessly communicating a data packet comprising a known preamble and a data payload using a multi-carrier signal, the transmitter comprising:
a processing element capable of applying a performance improvement characteristic to the known preamble and to the data payload prior to transmission of the preamble and the data payload. - View Dependent Claims (7, 8, 9, 10)
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11. A method for wirelessly communicating a data packet comprising a known preamble and a data payload using a multi-carrier signal, the method comprising:
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applying a performance improvement characteristic to the known preamble;
applying the performance improvement characteristic to the data payload; and
transmitting the preamble and the data payload. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A computer program product for wirelessly communicating a data packet comprising a known preamble and a data payload using a multi-carrier signal on a transmitter adapted to enable wireless communication, the computer program product comprising at least one computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:
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a first executable portion capable of applying a performance improvement characteristic to the known preamble;
a second executable portion capable of applying the performance improvement characteristic to the data payload; and
a third executable portion capable of transmitting the preamble and the data payload. - View Dependent Claims (18, 19, 20, 21)
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Specification