Patent ID: 8731092
Filing Date: 2014-05-20
Classification: H04L

Abstract:
1. A method, comprising: receiving data bits coded using a Reed Solomon code then a convolutional code for transmission; forward error correcting (FEC) the received data bits; interleaving the coded bits in a multicarrier communication channel according to a number of coded bits per Orthogonal Frequency Division Multiplexing (OFDM) symbol (Ncbps), by: mapping adjacent coded bits onto non-adjacent subcarriers in the channel by entering the coded bits in rows and reading the coded bits in columns, wherein separation between the adjacent coded bits is a function of a channel coherence bandwidth of the multicarrier communication channel; and mapping the adjacent coded bits alternately onto less or more significant bits of a constellation to avoid long runs of low reliability bits, wherein a number of bits used is dependent upon a modulation type; forming an OFDM symbol; and transmitting the OFDM symbol in the multicarrier communication channel.