链路级仿真
对通信系统的链路级模型进行仿真。使用误码率仿真来分析系统对通信信道中固有噪声和干扰的响应，探索假设场景，并评估相互竞争的系统架构和参数之间的权衡。物理层 (PHY) 处理链准备从更高层接收的数据以进行传输，并在将传输数据传递给更高层之前恢复这些数据。
本节中介绍的示例说明信号发射、无线电设备和传播信道所致的信号损伤、信号接收、数据恢复以及链路性能分析。
精选示例
Mobility Modeling with Ray Tracing Channel
Ray tracing channel to model mobility in a communications link.
Indoor MIMO-OFDM Communication Link Using Ray Tracing
Perform ray tracing in an indoor environment and use the results to build a channel model for a link level simulation with the MIMO-OFDM technique.
RF Satellite Link
Simulate a satellite link that models amplifier impairments by using a Memoryless Nonlinearity block.
BER Simulations with Parallel Computing Toolbox
Improve the execution speed of communication systems involving BER simulations.
QPSK Transmitter and Receiver
Simulate a QPSK transmitter and receiver.
QPSK Transmitter and Receiver in Simulink
Model a QPSK transmitter and receiver in Simulink®.
End-to-End QAM Simulation with RF Impairments and Corrections
Visualization capabilities that show the effects of RF impairments and corrections in a satellite downlink.
Introduction to MIMO Systems
Model Multiple-Input-Multiple-Output (MIMO) systems that use multiple antennas at the transmitter and receiver ends of a wireless communication system.
DVB-S.2 Link, Including LDPC Coding in Simulink
Model shows the channel coding scheme used in the second generation digital video broadcasting standard (DVB-S.2).
Estimate BER of QPSK in AWGN with Reed-Solomon Coding
Transmit Reed-Solomon encoded data using QPSK over an AWGN channel. Demodulate and decode the received signal and collect error statistics. Compute the theoretical bit error rate (BER) for coded and noncoded data. Plot the BER results to compare performance.
Apply OFDM in MIMO Simulation
OFDM in 2-by-2 MIMO simulation.
Parallel Concatenated Convolutional Coding: Turbo Codes
Characterize the performance of turbo codes over a noisy channel.
Accelerate SISO Single-Carrier Link Simulation Using GPU
Compare four techniques to accelerate SISO single-carrier link bit error rate (BER) simulations.
802.11ac Multiuser MIMO Precoding with WINNER II Channel Model
Transmit and receive processing for a IEEE® 802.11ac™ multiuser downlink transmission over a WINNER II fading channel.
OFDM Transmitter and Receiver
Simulate an end-to-end OFDM transmission system for a single-input, single-output (SISO) channel.
