History

ruv a7f7adfabc perf(vitals,wifiscan): O(1) VecDeque sliding windows + vitals bench (ADR-157 §A1/§D1) Replace Vec::remove(0) (O(n) per-sample buffer shift -> O(n^2) full-window sweep) with VecDeque push_back/pop_front (O(1) eviction) in the fixed-length sliding/ring buffers of the vital-sign and wifiscan extractors. Where the autocorrelation / zero-crossing / Pearson loop needs a contiguous slice, make_contiguous() is called once per extract(), matching the idiom already used in wifiscan/pipeline/orchestrator.rs. Output is bit-identical. Sites: anomaly.rs (rr/hr history), store.rs (readings ring; history() now takes &mut self to hand back a contiguous slice, no external callers), wifiscan breathing_extractor.rs (filtered history), wifiscan correlator.rs (per-BSSID histories -> Vec<VecDeque<f32>>). (heartrate.rs/breathing.rs windows land with the §A2/§A3 fixes in a separate commit.) New criterion bench crates/wifi-densepose-vitals/benches/vitals_bench.rs drives each extractor over a full-window fill. Honest MEASURED result: end-to-end win is NULL within noise at realistic ESP32 window sizes (1500-3000) because the per-frame DSP dominates the eviction (heartrate 42.8ms->44.4ms, breathing 7.95ms->7.86ms, overlapping CIs). In isolation the eviction collapses O(n^2) -> O(n) (34.6x at window=3000, 3158x at window=100000); A1 lands as the correct data structure removing a latent O(n^2), NOT a claimed hot-path speedup. Reproduce: cargo bench -p wifi-densepose-vitals --bench vitals_bench Co-Authored-By: claude-flow <ruv@ruv.net>		2026-06-11 20:59:57 -04:00
..
src	perf(vitals,wifiscan): O(1) VecDeque sliding windows + vitals bench (ADR-157 §A1/§D1)	2026-06-11 20:59:57 -04:00
Cargo.toml	chore(repo): rename rust-port/wifi-densepose-rs → v2/ (flatten to one level) (#427 )	2026-04-25 21:28:13 -04:00
README.md	chore(repo): rename rust-port/wifi-densepose-rs → v2/ (flatten to one level) (#427 )	2026-04-25 21:28:13 -04:00

README.md

wifi-densepose-wifiscan

Multi-BSSID WiFi scanning for Windows-enhanced DensePose sensing (ADR-022).

Overview

wifi-densepose-wifiscan implements the BSSID Acquisition bounded context for the WiFi-DensePose system. It discovers and tracks nearby WiFi access points, parses platform-specific scan output, and feeds multi-AP signal data into a sensing pipeline that performs motion detection, breathing estimation, attention weighting, and fingerprint matching.

The crate uses #[forbid(unsafe_code)] and is designed as a pure-Rust domain layer with pluggable platform adapters.

Features

BSSID registry -- Tracks observed access points with running RSSI statistics, band/radio type classification, and metadata. Types: BssidId, BssidObservation, BssidRegistry, BssidEntry.
Netsh adapter (Tier 1) -- Parses netsh wlan show networks mode=bssid output into structured BssidObservation records. Zero platform dependencies.
WLAN API scanner (Tier 2, wlanapi feature) -- Async scanning via the Windows WLAN API with tokio integration.
Multi-AP frame -- MultiApFrame aggregates observations from multiple BSSIDs into a single timestamped frame for downstream processing.
Sensing pipeline (pipeline feature) -- WindowsWifiPipeline orchestrates motion detection, breathing estimation, attention-weighted AP selection, and location fingerprint matching.

Feature flags

Flag	Default	Description
`serde`	yes	Serialization for domain types
`pipeline`	yes	WindowsWifiPipeline sensing orchestration
`wlanapi`	no	Tier 2 async scanning via tokio (Windows WLAN API)

Quick Start

use wifi_densepose_wifiscan::{
    NetshBssidScanner, BssidRegistry, WlanScanPort,
};

// Parse netsh output (works on any platform for testing)
let netsh_output = "..."; // output of `netsh wlan show networks mode=bssid`
let observations = wifi_densepose_wifiscan::parse_netsh_output(netsh_output);

// Register observations
let mut registry = BssidRegistry::new();
for obs in &observations {
    registry.update(obs);
}

println!("Tracking {} access points", registry.len());

With the pipeline feature enabled:

use wifi_densepose_wifiscan::WindowsWifiPipeline;

let pipeline = WindowsWifiPipeline::new();
// Feed MultiApFrame data into the pipeline for sensing...

Architecture

wifi-densepose-wifiscan/src/
  lib.rs          -- Re-exports, feature gates
  domain/
    bssid.rs      -- BssidId, BssidObservation, BandType, RadioType
    registry.rs   -- BssidRegistry, BssidEntry, BssidMeta, RunningStats
    frame.rs      -- MultiApFrame (multi-BSSID aggregated frame)
    result.rs     -- EnhancedSensingResult
  port.rs         -- WlanScanPort trait (platform abstraction)
  adapter.rs      -- NetshBssidScanner (Tier 1), WlanApiScanner (Tier 2)
  pipeline.rs     -- WindowsWifiPipeline (motion, breathing, attention, fingerprint)
  error.rs        -- WifiScanError

Crate	Role
`wifi-densepose-signal`	Advanced CSI signal processing
`wifi-densepose-vitals`	Vital sign extraction from CSI
`wifi-densepose-hardware`	ESP32 and other hardware interfaces
`wifi-densepose-mat`	Disaster detection using multi-AP data

License

MIT OR Apache-2.0