METHOD FOR IMPROVING ROBUSTNESS OF SPECTRUM SENSING IN PRESENCE OF BURSTY INTERFERENCE
First Claim
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1. A method of wireless communication in white space, comprising:
- spectrum sensing in the white space during each of a plurality of sensing intervals; and
determining whether each of the sensing intervals is subject to interference based on a time domain analysis of signal power during each sensing interval.
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Abstract
A method of wireless communication in white space includes spectrum sensing in the white space during each of multiple sensing intervals. The method also includes determining whether each of the sensing intervals is subject to interference. The determining process may be based on a time domain analysis or a frequency domain analysis of signal power during each sensing interval.
30 Citations
25 Claims
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1. A method of wireless communication in white space, comprising:
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spectrum sensing in the white space during each of a plurality of sensing intervals; and determining whether each of the sensing intervals is subject to interference based on a time domain analysis of signal power during each sensing interval. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of wireless communication in white space, comprising:
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spectrum sensing in the white space during each of a plurality of sensing intervals; and processing a sensing interval by one of transforming and discarding the sensing interval based on an overload bit of an analog to digital converter, the transforming comprising setting the power of an affected portion of an interfered signal to one of a predetermined value and a value interpolated from adjacent samples of the signal when the overload bit indicates occurrence of an overload condition, the discarding occurring when a number of overload bits of the analog to digital converter exceeds a predetermined threshold.
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11. An apparatus for wireless communication in white space, comprising:
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means for spectrum sensing in the white space during each of a plurality of sensing intervals; and means for determining whether each of the sensing intervals is subject to interference based on a time domain analysis of signal power during each sensing interval. - View Dependent Claims (12, 13, 14, 15)
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16. An apparatus for wireless communication in white space, comprising:
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means for spectrum sensing in the white space during each of a plurality of sensing intervals; and means for processing a sensing interval by one of means for transforming and means for discarding the sensing interval based on an overload bit of an analog to digital converter, the means for transforming comprising means for setting the power of an affected portion of an interfered signal to one of a predetermined value and a value interpolated from adjacent samples of the signal when the overload bit indicates occurrence of an overload condition, the means for discarding implemented when a number of overload bits of the analog to digital converter exceeds a predetermined threshold.
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17. A computer program product for wireless communication in white space, comprising:
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a computer-readable medium having a program code recorded thereon, the program code comprising; program code to spectrum sense in the white space during each of a plurality of sensing intervals; and program code to determine whether each of the sensing intervals is subject to interference based on a time domain analysis of signal power during each sensing interval. - View Dependent Claims (18, 19, 20, 21)
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22. A computer program product for wireless communication in white space, comprising:
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a computer-readable medium having a program code recorded thereon, the program code comprising; program code to spectrum sense in the white space during each of a plurality of sensing intervals; and program code to process a sensing interval by one of transforming and discarding the sensing interval based on an overload bit of an analog to digital converter, the transforming comprising setting the power of an affected portion of an interfered signal to one of a predetermined value and a value interpolated from adjacent samples of the signal when the overload bit indicates occurrence of an overload condition, the discarding occurring when a number of overload bits of the analog to digital converter exceeds a predetermined threshold.
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23. An apparatus for wireless communication in white space, comprising:
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a memory; and at least one processor coupled to the memory, the at least one processor being configured; to spectrum sense in the white space during each of a plurality of sensing intervals; and to determine whether each of the sensing intervals is subject to interference based on a time domain analysis of signal power during each sensing interval. - View Dependent Claims (24)
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25. An apparatus for wireless communication in white space, comprising:
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a memory; and at least one processor coupled to the memory, the at least one processor being configured; to spectrum sense in the white space during each of a plurality of sensing intervals; and to process a sensing interval by one of transforming and discarding the sensing interval based on an overload bit of an analog to digital converter, the transforming comprising setting the power of an affected portion of an interfered signal to one of a predetermined value and a value interpolated from adjacent samples of the signal when the overload bit indicates occurrence of an overload condition, the discarding occurring when a number of overload bits of the analog to digital converter exceeds a predetermined threshold.
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Specification