Adaptive channel prediction and mitigating interference in OFDM systems

A method, comprising:

• determining, by an optimization module, a guard interval remainder based, at least in part on a comparison of an allowable microreflection interference level and an actual microreflection interference level;
• windowing, by a windowing module, an OFDM (orthogonal frequency division multiplexed) symbol utilizing the guard interval remainder;
• determining, by a channel estimator module, a predicted channel frequency response based, at least in part, on a probing symbol;
• and
• pre-equalizing, by a pre-equalizer module, or equalizing, by an equalizer module, or both pre-equalizer and equalizing, the OFDM symbol based, at least in part, on the predicted channel frequency resposnse.

A system comprising, one or more non-transitory computer memories having stored thereon, individually or in combination, instructions that when executed by one or more processors result in the following operations comprising:

• determining a guard interval remainder based, at least in part on a comparison of an allowable microreflection interference level and an actual microreflection interference level;
• windowing an OFDM (orthogonal frequency division multiplexed) symbol utilizing the guard interval remainder;
• determining a predicted channel frequency response based, at least in a part, on probing symbol;
• and
• pre-equalizer or equalizer or both pre-equalizer and equalizer, the OFDM symbol based, at least in part, on the predicted channel frequency response.

A system comprising:

• a transmitting device configured to transmit an OFDM (orthogonal frequency division multiplexed) symbol;
• the transmitting device having:
• a channel estimator module configured to determine a predicted channel frequency response based, at least in part, on a probing symbol;
• and
• a receiving device, comprising:
• an optimization module configured to determine a guard interval remainder based, at least in part on a comparison of an allowable microreflection interference level and an actual microreflection interference level;
• and
• a windowing module configured to window a received OFDM symbol utilizing the guard interval remainder, the received OFDM symbol related to the transmitted OFDM symbol;
• wherein at least one of the transmitting device includes a pre-equalizer module configured to pre-equalize the transmitted OFDM symbol based, at least in part, on the predicted channel frequency response, or the receiving device includes an equalizer module configured to equalize the received OFDM symbol.