Method and system for predicting channel quality index (cqi) values for maximum likelihood (ml) detection in a 2x2 multiple input multiple output (mimo) wireless system

A system for communicating information in a wireless communication system, the system comprising:

• one or more circuits for use in a receiver, said one or more circuits are operable for computing a channel realization matrix based on a plurality of spatial stream signals that are concurrently received via a plurality of receiving antennas;
• said one or more circuits are operable for computing one or more channel quality index values based on said computed channel realization matrix and a reverse mapping function, wherein said reverse mapping function is generated based on one or more signal to noise ratio values for a single input single output communication system;
• and
• said one or more circuits are operable for selecting one or more coding rates based on said computed one or more channel quality index values.

A method for communicating information in a wireless communication system, the method comprising:

• performing by one or more processors and/or circuits in a multiple input multiple output receiver system that utilizes maximum likelihood detection:
• concurrently receiving a plurality of spatial stream signals via a plurality of receiving antennas;
• detecting one of said received plurality of spatial stream signals;
• detecting a subsequent one of said received plurality of spatial streams signals based on successive interference cancellation of said detected one of said plurality of spatial streams;
• computing a joint mutual information value based on said detected one of said received plurality of spatial stream signals and said detected subsequent one of said received plurality of spatial streams;
• selecting one or more coding rates based on said computed joint mutual information value;
• transmitting said selected one or more coding rates via one or more transmitting antennas;
• and
• concurrently receiving a subsequent plurality of spatial stream signals, wherein said received subsequent plurality of spatial stream signals comprise information that is encoded based on said selected one or more coding rates.