Convolutionally encoded M-ary quadrature amplitude modulation (M-QAM) systems operated over multidimensional channels, for example dual-polarized radio systems are considered in this paper.
We analyze the bit error probability reduction for direct detection ON-OFF keying optical receivers using return-to-zero (RZ) coding instead of the nonreturn-to-zero (NRZ)format.
Orthogonal frequency division multiplexing (OFDM) is an effective technique for high-speed digital transmission over time-dispersive channels.
Analytical results are derived for the performance of maximal-ratio combining (MRC) over correlated Gaussian vector channels.
The bit error rate (BER) of multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems with carrier frequency offset and channel estimation errors is analyzed i
Digital error rate measurements are described for a 30 kHz cellular channel transmitting at a rate of 48 kbps using pi/4-DQPSK modulation.
This paper describes the preliminary results of the bit error rate measurements on a 30 kHz digital channel using Four Level DPSK modulation (pi/4-shift QPSK).
Cyclic prefixed communications, such as multicarrier communications, first became widely used in the context of digital subscriber lines (DSL).
A dependence of nonlinear transmission penalty om bit sequence length in pseudo-linear transmission is demonstrated and studied.
A dependence of nonlinear transmission penalty on bit sequence length in psendolinear transmission is demonstrated and studied.
