open-sdr/openwifi

Features

• RF Signal Processing Implementations - Implements the 802.11n physical and MAC layers using FPGA-based RF signal processing at baseband.
• WiFi Baseband FPGA Designs - Provides a full hardware and software implementation of the 802.11n wireless standard for programmable logic.
• IEEE 802.11 Implementations - Provides a full-stack design compatible with the IEEE 802.11n wireless standard.
• IQ Sample Captures - Extracts raw IQ samples and channel state information through a dedicated side-channel telemetry interface.
• Capture Channel Management - Extracts channel response and equalizer data from wireless packets via a dedicated side-channel interface.
• Network Interface Implementations - Provides a compatible network interface supporting multiple wireless modes implemented directly on FPGA hardware.
• Wireless Baseband Designs - Provides an open-source implementation of the 802.11n wireless baseband and MAC layers on FPGA hardware.
• RF Transmission Power Control - Sets power attenuation and modifies hardware registers to increase output signal strength.
• Gain and Filter Control - Toggles between automatic gain control and manual settings to optimize RF signal reception.
• Radio Parameter Configurations - Provides interfaces for adjusting low-level hardware parameters such as CCA thresholds and receiver sensitivity.
• Bandwidth Customizations - Allows modifying operational frequency ranges and channel bandwidth to support various wireless standards.
• Frequency Tuning - Enables precise adjustment of transmit and receive frequencies across a wide spectrum, including non-standard overrides.
• Receiver Sensitivity Thresholds - Establishes a signal strength threshold to ignore weak background noise during reception.
• Software Defined Radios - Provides a software-defined radio platform for capturing IQ samples and analyzing physical layer behavior.
• Wi-Fi CSI Sensing - Extracts and analyzes Channel State Information (CSI) for environmental sensing and object detection.
• WiFi Baseband Processors - Implements a low-level hardware baseband processor covering the physical and MAC layers for wireless networking.
• CSI Metadata Extraction - Extracts Channel State Information from wireless packets to analyze environment reflections and signal state.
• IoT Wireless Protocol Stacks - Implements a full wireless protocol stack that integrates with standard networking frameworks.
• Low-MAC Management - Handles the low-MAC process including sequence numbering and automatic hardware retransmissions.
• Physical-to-Packet Correlation - Relates captured IQ samples to specific packets by aligning their respective timestamps.
• Wireless Network Drivers - Implements low-level kernel drivers to manage the communication between the operating system and the FPGA-based wireless hardware.
• Hardware Queue Slicing - Slices transmission time based on MAC addresses using time-gated or scheduled queues.
• Coherent Multi-Antenna Captures - Records synchronized IQ data from primary and monitoring antennas to analyze multi-path reception.
• Radio Hardware Integration - Interfaces processing systems with frequency transceivers and amplifiers to execute software-defined radio operations.
• Signal Triggering Logics - Initiates IQ sample collection based on specific hardware conditions such as checksum results or signal thresholds.
• Joint Radar-Communication Sensing - Detects target objects by analyzing channel state information during full duplex transmission.
• Ad Hoc Network Provisioning - Implements the ability to create peer-to-peer wireless networks using shared channels and cell IDs.
• CSI Packet Correlation - Links channel state information to specific packets by matching timestamps across capture streams.
• CSI Value Injection - Injects artificial CSI values to test sensing capabilities or establish covert communication channels.
• Wireless Network Mode Toggles - Supports switching the wireless device between Access Point, Station, Ad-hoc, and Monitor modes.
• Wireless Protocol Analysis Suites - Provides utilities for capturing and analyzing radio frequency signals and protocol behavior for network debugging.
• Network Interface Slicing - Shares a single physical interface between two distinct network slices using control tools.
• Network Performance Analysis Tools - Injects packets across varying bitrates and payload sizes to analyze traces and measure physical layer performance.
• Protocol Fuzzing - Injects malformed packets and data into wireless protocols to test the security and robustness of implementations.
• MAC Layer Offloads - Offloads packet sequencing and automatic acknowledgment logic from the CPU to FPGA hardware.
• Network Task Offloads - Offloads Ethernet and MAC processing to programmable logic to reduce CPU overhead.
• Physical Layer Timestamp Correlation - Provides high-precision correlation between physical layer timestamps and captured wireless packets for signal analysis.
• Low-MAC Transmission Settings - Controls packet settings including modulation, RTS/CTS mechanisms, and retransmission limits.
• Packet Retransmission Strategies - Sets maximum packet re-transmissions and toggles automatic acknowledgement behavior in hardware.
• Raw Wireless Frame Injection - Sends arbitrary raw 802.11 frames through the network interface in monitor mode for physical layer testing.
• WiFi Access Point Hosting - Configures the device to broadcast beacons and accept associations as a WiFi access point.
• Wireless Frame Injection Tools - Supports the injection of raw frames and packet fuzzing to research the robustness of 802.11 implementations.
• Wireless Network Scanning - Enables scanning for available wireless networks and authenticating client devices to access points.
• Wireless Network Time Synchronization - Maintains high-precision clock alignment across multi-hop wireless connections for synchronized signal analysis.
• Physical Layer Configurations - Supports specific subcarriers and code rates to optimize high-speed wireless throughput.
• Physical Layer Packet Timestamping - Attaches high-precision timer values to packets at the moment of physical layer reception for accurate signal analysis.
• IQ Sample Replays - Writes custom IQ baseband data directly to hardware to trigger one-time transmissions for testing.
• Packet Metadata Extraction Logging - Extracts real-time telemetry including timestamps and signal strength from received wireless frames to the kernel log.
• Infrastructure réseau - Conception Wi-Fi complète basée sur la radio logicielle (SDR).
• Networking Tools - Full-stack Wi-Fi design based on software-defined radio.

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