Method of secure WLAN communication
First Claim
1. A method of secure communication in a wireless network using a spatial division multiple access transmission scheme, the method comprising:
- generating a set of N spatial channels to be transmitted, using a set of N respective antennas, to a set of K destination stations, by applying at least one precoding matrix to a set of inputs including K transmissions intended to said K destination stations, respectively, and one or more dither sequences, wherein said precoding matrix includes K beamforming vectors based on channel state information of said K stations, respectively, and one or more additional vectors orthogonal to said beamforming vectors.
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Abstract
Some demonstrative embodiments of the invention include a method device and/or system of secure communication in a wireless network using a spatial division multiple access transmission scheme. The method, according to some demonstrative embodiments may include generating a set of N spatial channels to be transmitted, using a set of N respective antennas, to a set of K destination stations, by applying at least one precoding matrix to a set of inputs including K transmissions intended to the K destination stations, respectively, and one or more dither sequences, wherein the precoding matrix includes K beamforming vectors based on channel state information of the K stations, respectively, and one or more additional vectors orthogonal to the beamforming vectors. Other embodiments are described and claimed.
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Citations
28 Claims
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1. A method of secure communication in a wireless network using a spatial division multiple access transmission scheme, the method comprising:
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generating a set of N spatial channels to be transmitted, using a set of N respective antennas, to a set of K destination stations, by applying at least one precoding matrix to a set of inputs including K transmissions intended to said K destination stations, respectively, and one or more dither sequences, wherein said precoding matrix includes K beamforming vectors based on channel state information of said K stations, respectively, and one or more additional vectors orthogonal to said beamforming vectors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus to securely communicate in a wireless network using a spatial division multiple access transmission scheme, the apparatus comprising:
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a precoder to generate a set of N spatial channels to be transmitted, using a set of N respective antennas, to a set of K destination stations, by applying at least one precoding matrix to a set of inputs including K transmissions intended to said K destination stations, respectively, and one or more dither sequences, wherein said preceding matrix includes K beamforming vectors based on channel state information of said k stations, respectively, and one or more additional vectors orthogonal to said beamforming vectors. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24, 25, 26, 27, 28)
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20. A system of secure communication in a wireless network using a spatial division multiple access transmission scheme, the system comprising:
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a plurality of stations;
an access point to generate a set of N spatial channels to be transmitted, using a set of N respective antennas, to a set of K destination stations of said plurality of stations, by applying at least one precoding matrix to a set of inputs including K transmissions intended to said K destination stations, respectively, and one or more dither sequences, wherein said preceding matrix includes K beamforming vectors based on channel state information of said K stations, respectively, and one or more additional vectors orthogonal to said beamforming vectors. - View Dependent Claims (23)
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Specification