BICM

Novel data detection and channel estimation algorithms for BICM-OFDMA uplink asynchronous systems in the presence of IQ imbalance

The problem of channel estimation and in-phase/quadrature-phase (IQ) imbalance is one of the main challenges that has to be faced by uplink transmission in orthogonal frequency division multiple access (OFDMA) systems. The previously reported …

Precoding for word error rate minimization of LDPC coded modulations on block fading channels

In wireless communications, the block fading (BF) channel is an important channel model. A key quality indicator in coded transmission is the word error rate (WER), which is the fraction of packets that cannot be decoded correctly at the receiver. We …