Blackberry Corporation

Steve Hranilovic

Alireza Bayesteh

Sagar Dhakal

Amin Mobasher

Thomas Aloysius Sexton

Christopher Labrador

An architecture, system and associated method and apparatus for securely communicating authentication data to a communication device. In one embodiment, the method includes modulating a spectral source's radiation using the authentication data, wherein the spectral source's radiation is adapted to operate as a first transmission medium for carrying the authentication data, the first transmission medium being containable within an enclosure that inhibits passage of the spectral source's radiation (i.e., spectrally opaque enclosure). The modulated authentication data is transmitted via the first transmission medium to the communication device disposed in the spectrally opaque enclosure.

System and method for authentication and key exchange for a mobile device via spectrally confined wireless communications

Embodiments are disclosed for improved systems and methods for encoding and decoding information transmitted using multiple-input-multiple-output (MIMO) communication devices. Structurally sparse codes are implemented based on principles of compressive sampling. Improved detectors are also disclosed for implementing basis pursuit and basis pursuit with runner-up detection techniques.

Sparse codes for MIMO channel and detector alternatives for sparse code

Multi-user sparse space codes are proposed as a new transmission scheme for uplink communication over a multi-user multiple-input-multiple-output (MIMO) communication channel.

Multi-user communication using sparse space codes

A multi-level coding and iterative decoding scheme using sparse space codes as the inner-code and codes amenable to belief propagation decoding methods (such as low-density parity-check (LDPC) codes, turbo codes, and trellis codes) as the outer-code is proposed for MIMO communication channels.

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Oakville, Canada

Steve Hranilovic