Wireless Transceiver Design, Part 1: Wireless Network Modeling

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Simulink® modeling of wireless network is challenging for some wireless system designers who want to use a model-based approach to design the networks. We developed a Simulink system model for a relatively complete wireless network.

The modeled wireless network uses packetized data and half-duplexing on transmission and receiving, like those employed in WLAN, IOT, and TD-LET. This model provides methodology on how to use Simulink to simulate a complicated wireless network. It also shows the efficient implementations for some key function blocks in communication systems, such as a radio network with bi-directional paths, decision feedback equalizer, head/frame CRCs, and MAC layer. With this model, various system behaviors can be studied, including:

Different channel models (mobile channel, MIMO channel, etc.)
Selected PHY and MAC schemes (QPSK, ALOHA based, and 802.11-CSMA/CA)
Different architectures for the function blocks in the system
Interactions between the radio nodes in the network
We built this model mainly with HDL-supported Simulink and Stateflow® blocks that facilitate the direct HDL code generation of the whole transceiver block. Automation in HDL code generation greatly increases the efficiency on SDR+FPGA prototyping and ASIC implementation.

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