Implicit Transmission of Coded Information Using Multi-Constellation Signaling

A multi-constellation signaling (MCS) technique is proposed to implicitly transmit coded bits in addition to explicitly transmitted bits over the channel to increase the throughput. MCS schemes select one out of N(> 1) constellations based on a set of implicit bits during every interval. MCS schemes are designed, analyzed, and compared with traditional signaling schemes that employ a single constellation. It is demonstrated that a properly designed MCS scheme can double and triple the throughput and also perform better than a scheme that employs a single constellation, and MCS schemes can perform better than turbo coded signals in the Long Term Evolution (LTE).