Abstract: A method for transmitting information in a multi-carrier system includes: identifying a first set of carrier signals, associated with a first code rate; and identifying a second set of carrier signals, associated with a second code rate. The method also includes partitioning a first sequence of bits representing a single symbol into a first group of bits associated with the first code rate and at least a second group of bits associated with the second code rate; interleaving a subset of bits from the first group to map multiple bits from the first group to respective carrier signals in the first set of carrier signals to achieve the first code rate; and interleaving a subset of bits from the second group to map multiple bits from the second group to respective carrier signals in the second set of carrier signals to achieve the second code rate.

Abstract: A method for transmitting information in a multi-carrier system includes: identifying a first set of carrier signals, associated with a first code rate; and identifying a second set of carrier signals, associated with a second code rate. The method also includes partitioning a first sequence of bits representing a single symbol into a first group of bits associated with the first code rate and at least a second group of bits associated with the second code rate; interleaving a subset of bits from the first group to map multiple bits from the first group to respective carrier signals in the first set of carrier signals to achieve the first code rate; and interleaving a subset of bits from the second group to map multiple bits from the second group to respective carrier signals in the second set of carrier signals to achieve the second code rate.

Abstract: Methods and systems for transmitter diversity expansion are provided. The methods and systems include steps and modules for applying a number of data streams (K) to a larger number of antennas (N). This is performed by applying each of the data streams to a single base antenna, such that K data streams are applied to K base antennas, and by shifting and combining the K data streams to produce N-K data streams to apply to N-K extension antennas.

Abstract: Methods and systems for transmitter diversity expansion are provided. The methods and systems include steps and modules for applying a number of data streams (K) to a larger number of antennas (N). This is performed by applying each of the data streams to a single base antenna, such that K data streams are applied to K base antennas, and by shifting and combining the K data streams to produce N-K data streams to apply to N-K extension antennas.

Abstract: Methods and systems for transmitter diversity expansion are provided. The methods and systems include steps and modules for applying a number of data streams (K) to a larger number of antennas (N). This is performed by applying each of the data streams to a single base antenna, such that K data streams are applied to K base antennas, and by shifting and combining the K data streams to produce N-K data streams to apply to N-K extension antennas.

Abstract: Systems and methods of convergence beamforming are disclosed. One method embodiment, among others, comprises receiving N data streams from at least N+1 antennas, where N is an integer greater than 1; determining signal characteristics of each received data stream; and adjusting the signal characteristics of N data streams to be transmitted based on the determined signal characteristics of the received N data streams. The convergence beamforming may be achieved by the orthogonalization of received multipath channel vectors. The transmission signals from a station are adjusted corresponding to the channel characteristics of the signals received by that station.

Abstract: Systems and methods of convergence beamforming are disclosed. One method embodiment, among others, comprises receiving N data streams from at least N+1 antennas, where N is an integer greater than 1; determining signal characteristics of each received data stream; and adjusting the signal characteristics of N data streams to be transmitted based on the determined signal characteristics of the received N data streams. The convergence beamforming may be achieved by the orthogonalization of received mulitpath channel vectors. The transmission signals from a station are adjusted corresponding to the channel characteristics of the signals received by that station.

Abstract: Methods and systems for transmitter diversity expansion are provided. The methods and systems include steps and modules for applying a number of data streams (K) to a larger number of antennas (N). This is performed by applying each of the data streams to a single base antenna, such that K data streams are applied to K base antennas, and by shifting and combining the K data streams to produce N-K data streams to apply to N-K extension antennas.