Abstract: A method and device for adaptive control of transmission parameters such as data rate, fragmentation and request to send protection. Packet error rates for frames transmitted with and without request to send protection are computed and compared to determine whether error rates are attributable to noise or to collision. If error rates are attributable to noise, data rates may be adjusted and fragmentation may be activated. If error rates are attributable to collisions, request to send protection may be activated or adjusted.

Abstract: Briefly, a method and apparatus to detect and acquire a frame within a transmission are provided. The apparatus may be coupled to at least two antennas and may include a frame acquisition module to detect and acquire the frame received within a transmission by one of the antennas.

Abstract: In some embodiments of the present invention the nature of an input signal is identified and the amplification of a pre-amplifier and a power amplifier in a transmitter system are modified responsive to whether the momentary content of the input signal is a preamble or data and to the modulation rate of the input signal. In some other embodiments sets of amplification factors are set to reduce in-band noise at the antenna of the transmitter system.

Abstract: Briefly, some embodiments of the invention provide devices, systems and methods of crosstalk cancellation. For example, an apparatus may include a first transmission path to carry a first signal with information to be transmitted; a second transmission path to carry a second signal with information to be transmitted; a scaler associated with said first transmission path to scale said first signal into a scaled first signal; and a combiner to combine said scaled first signal and said second signal into a combined second signal on said second transmission path.

Abstract: Briefly, a method and apparatus to compensate an imbalance of a modulator by providing calibration parameters to a calibration network. The modulator may receive a pair of predetermined sinusoidal in-phase and quadrature signals and output a distorted modulated signal. A processor may process spectral parameters at first and second harmonics of a detected envelope signal of the distorted modulated signal may generate the calibration parameters.

Abstract: A wireless network device may include a receiver having an active energy detection threshold and a processor to control the active energy detection threshold. The processor may determine preferred energy detection thresholds for the receiver for corresponding communication channels to which the receiver is tunable, and may select one of the preferred energy detection thresholds as an active energy detection threshold of the receiver for communication on a corresponding one of the communication channels. While the wireless network device is associated with another wireless network device of a wireless network over a communication channel, the processor may adjust the energy detection threshold of the receiver to changing conditions of the wireless network.

Abstract: A method and device for adaptive control of transmission parameters such as data rate, fragmentation and request to send protection. Packet error rates for frames transmitted with and without request to send protection are computed and compared to determine whether error rates are attributable to noise or to collision. If error rates are attributable to noise, data rates may be adjusted and fragmentation may be activated. If error rates are attributable to collisions, request to send protection may be activated or adjusted.

Abstract: Embodiments of the present invention provide a method, apparatus and system for demodulating a received signal by selecting a demodulated codeword corresponding to a channel-influenced codeword based on a proximity relation between the received signal and the channel-influenced codeword.

Abstract: In some embodiments of the present invention the nature of an input signal is identified and the amplification of a pre-amplifier and a power amplifier in a transmitter system are modified responsive to whether the momentary content of the input signal is a preamble or data and to the modulation rate of the input signal. In some other embodiments sets of amplification factors are set to reduce in-band noise at the antenna of the transmitter system.

Abstract: Briefly, a method and apparatus to detect and acquire a frame within a transmission are provided. The apparatus may be coupled to at least two antennas and may include a frame acquisition module to detect and acquire the frame received within a transmission by one of the antennas.

Abstract: Briefly, a method and apparatus to compensate an imbalance of a modulator by providing calibration parameters to a calibration network. The modulator may receive a pair of predetermined sinusoidal in-phase and quadrature signals and output a distorted modulated signal. A processor may process spectral parameters at first and second harmonics of a detected envelope signal of the distorted modulated signal may generate the calibration parameters.

Abstract: Briefly, a method and apparatus to compensate for an imbalance of a demodulator by providing calibration parameters to a calibration network is provided. The apparatus may include a calibration network that may output an in-phase signal and a quadrature signal and a processor to generate calibration parameters. The processor may generate the calibration parameters by measuring an average power of the in-phase signal, an average power of the quadrature signal; and a correlation between the in-phase signal to the quadrature signal.