Sentence examples for constellation scheme from inspiring English sources

In [12], the previous work has been extended to 16-QAM constellation scheme.

Adaptive modulation is one of the techniques that has been proposed to set up the best constellation scheme according to the channel conditions [2 4].

The authors have targeted specific constellation scheme (QPSK) and presented the performance comparison between a non-quantized system and quantized system for different system configuration.

The AM/AM and AM/PM characteristics cause distortions on the constellation scheme and spectral regrowth, degrading then the system performance.

Assuming that the can be estimated and known by the transmitter and the receiver, a hierarchical constellation scheme which can provide the best PSNR performance by using a selection of values is shown in Figure 19. Figure 19 A hierarchical constellation scheme for the best overall PSNR performance using a selection of value.

Various interleaving techniques, such as bit, cell, time and frequency interleaving, rotation constellation scheme, and cyclic Q-delay technique have been employed in DVB-T2 systems to combat the time-varying channel.

An area and power efficient high-throughput VLSI implementation of a 4 × 4, 64-QAM soft multiple-input-multiple-output (MIMO) detector, that is suitable for high-order constellation schemes is presented.

The performance of LLR quantization (1, 2, and 3 b) for MIMO-BICM systems has been investigated for BPSK and 16-QAM constellation schemes.

The proposed techniques adapt the circularity properties of the transmitted signals to the specific channel to be equalized; their performance analysis shows that also the simplest suboptimum procedure provides significant improvements over a fixed-constellation scheme.

To support a viability of the adaptive constellation mapping scheme, we again evaluate the system performance in the HW real-world setup.

In[11], the authors proposed a constellation reassignment scheme at the relay to minimize the symbol error rate at the destination node.