Method of secure WLAN communication
AssigneeCeleno Communications (Israel) Ltd.
InventorsNir Shapira, Gilad Rozen
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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 allocating transmission power to N channels to be transmitted to one or more destination stations by N antennas, such that the power to be received by each one of the one or more destination stations is not greater, by more than a predefined power margin, than a minimum power required for reception at a desired quality of service. Other embodiments are described and claimed.
Claims41
A method of power allocation for secure transmission in a wireless network using a spatial division multiple access transmission scheme, the method comprising:
- allocating transmission power to N channels to be transmitted to one or more destination stations by N antennas, such that the power to be received by each one of said one or more destination stations is not greater, by more than a predefined power margin, than a minimum power required for reception at a desired quality of service.
The method of claim. 1, wherein said one or more destination stations comprise K destination stations, said method comprising:
- generating said N spatial channels 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.
An apparatus to securely communicate in a wireless network using a spatial division multiple access transmission scheme, the apparatus comprising:
- a power allocator to allocate transmission power to N channels to be transmitted to one or more, destination stations by N antennas, such that the power to be received by each one of said one or more destination stations is not greater, by more than a predefined power margin, than a minimum power required for reception at a desired quality of service.
A system of secure communication in a wireless network using a spatial division multiple access transmission scheme, the system comprising:
- a plurality of stations;
- an access point to allocate transmission power to N channels to be transmitted to one or more destination stations of said plurality of stations by N antennas, such that the power to be received by each one of said one or more destination stations is not greater, by more than a predefined power margin, than a minimum power required for reception at a desired quality of service.
Dependencies are inferred from the claim text.