Apparatus and method for reception using iterative detection and decoding

A receiver for iterative detection and decoding, the receiver comprising:

• a channel estimator configured to generate a channel estimated value using a received signal;
• a first detector configured to generate a first Log Likelihood Ratio (LLR) value which is not influenced by feedback information using the received signal and the channel estimated value;
• a first buffer configured to store the generated first LLR value;
• a second detector configured to generate a second LLR value which is influenced the feedback information by using the received signal, the channel estimated value, and the feedback information and add the second LLR value to the stored first LLR value to generate a total LLR value;
• and
• a decoder configured to generate the feedback information including decoded bit information using the total LLR value,
• wherein the second LLR value is iteratively regenerated using the received signal, the generated feedback information, and the channel estimated value.

A non-transitory computer-readable medium storing instructions which, when executed by one or more processors, have components of a receiver perform the following operations:

• generating a channel estimated value using a received signal;
• generating a first Log Likelihood Ratio (LLR) value which is not influenced by feedback information using the received signal and the channel estimated value;
• storing the generated first LLR value;
• generating a second LLR value which is influenced by the feedback information using the received signal, the channel estimated value, and the feedback information;
• generating a total LLR value by adding the second LLR value to the stored first LLR value;
• and
• generating the feedback information including decoded bit information using the total LLR value,
• wherein the second LLR value is iteratively regenerated using the received signal, the generated feedback information, and the channel estimated value.

An integrated circuit, comprising:

• a channel estimator capable of generating a channel estimated value using a received signal;
• a first detector capable of generating a first Log Likelihood Ratio (LLR) value which is not influenced by feedback information using the received signal and the channel estimated value;
• a first buffer capable of storing the generated first LLR value;
• a second detector capable of generating a second LLR value which is influenced by the feedback information by using the received signal, the channel estimated value, and the feedback information and adding the second LLR value to the stored first LLR value to generate a total LLR value;
• and
• a decoder capable of generating the feedback information including decoded bit information using the total LLR value,
• wherein the second LLR value is iteratively regenerated using the received signal, the generated feedback information, and the channel estimated value.