Implicit Transmission of Coded Information Using Multi-Constellation Signaling

Throughput enhancing concatenated codes with a second uncoded implicit stream

“…However, an SM scheme that employs k transmitting antennas can transmit up to bits implicitly based on the selection of the transmitting antenna in addition to the bits transmitted explicitly over the channel. Multi‐constellation signalling [5] also uses implicit transmission by employing a constellation with clusters and selecting a particular constellation based on a set of implicit bits during every interval. The implicit transmission principle presented in SM and in [5], has been applied to construct a novel class of throughput enhancing concatenated codes (TECCs) presented in [6].…”

“…Multi‐constellation signalling [5] also uses implicit transmission by employing a constellation with clusters and selecting a particular constellation based on a set of implicit bits during every interval. The implicit transmission principle presented in SM and in [5], has been applied to construct a novel class of throughput enhancing concatenated codes (TECCs) presented in [6].…”

“…Ex L i (e 1 ) denotes operation according to equation (5). Low SNR performance and throughput expansion tradeoff: As stated before TECC-1 schemes can increase the throughput significantly by transmitting a second coded data stream implicitly while transmitting a first coded data stream explicitly.…”

Throughput enhancing concatenated codes

“…A generalised SM (GSM) that combines both the MIMO and SM techniques, has been introduced to transmit m Im ≤ log 2 N K additional bits by choosing K( ≤ N) antennas for transmission during every interval [4,5]. A multi-constellation signalling (MCS) technique has been proposed in [6] by applying the SM principle for transmission using a single antenna. MCS is a higher-order signalling technique that employs clusters of constellation points and performs significantly better than traditional higher-order signalling.…”