anti-jamming-env

Anti-Jamming Communication System (OpenEnv)

This environment simulates a real-world wireless link under intelligent jamming. Agents learn to select transmission parameters that maximize throughput while avoiding interference. The environment is OpenEnv-compliant and provides reset(), step(), and state() with typed Pydantic models.

Environment Summary

Key features:

• Realistic RF physics (path loss, fading, noise, interference)
• Multiple jammer behaviors (spot, sweep, barrage, reactive, learning)
• Dense reward signals for throughput and efficiency
• Deterministic graders for reproducible scoring
• Three tasks: easy, medium, hard

Action Space

The agent selects transmission parameters:

class AntiJammingAction(BaseModel):
        frequency_channel: int  # 0-63
        tx_power_dbm: float      # 0.0-30.0
        modulation: str          # BPSK, QPSK, 16QAM, 64QAM
        coding_rate: str         # 1/2, 2/3, 3/4, 5/6
        beam_direction: int      # 0-7
        enable_fhss: bool        # frequency hopping
        enable_dsss: bool        # direct sequence spread spectrum
        enable_notch_filter: bool

Observation Space

The environment returns:

• Channel states for 16 representative frequencies
• Jammer detection and estimated power
• Last transmission success, throughput, and energy
• Recent success rate and average SINR

Reward Function

Dense reward combines:

• Throughput (primary objective)
• Energy efficiency penalty
• Success bonus / failure penalty
• SINR quality bonus
• Anti-jam technique bonus

Tasks

Each task has a deterministic grader with score in [0.0, 1.0].

• Easy: spot jammer, success threshold 0.70
• Medium: barrage or sweep jammer, success threshold 0.60
• Hard: learning jammer, success threshold 0.50

Setup

python3 -m venv venv
source venv/bin/activate
pip install -r requirements.txt

Running Baseline Inference

export HF_TOKEN="your_hf_token"
export API_BASE_URL="https://router.huggingface.co/v1"
export MODEL_NAME="Qwen/Qwen2.5-72B-Instruct"
export ANTI_JAMMING_TASK="easy"
python inference.py

The script prints only [START], [STEP], and [END] lines to stdout.

Baseline Scores

Baseline scores depend on the model and prompt. Example targets:

• Easy: 0.70
• Medium: 0.60
• Hard: 0.50

Docker

docker build -t bhargav-2007/anti-jamming-env:latest .
docker run -p 8000:8000 bhargav-2007/anti-jamming-env:latest

Validation

openenv validate .

        enable_fhss=random.choice([True, False]),
        enable_dsss=False,
        enable_notch_filter=True
    )
    
    result = await env.step(action)
    total_reward += result.reward
    
    if result.done:
        break

print(f"Total reward: {total_reward:.2f}")
await env.close()

asyncio.run(run_random_agent())

### Heuristic Agent (Frequency Hopper)

```python
async def run_heuristic_agent():
    env = AntiJammingEnv(task="medium", max_steps=50)
    result = await env.reset()
    
    # Track jammed channels
    jammed_channels = set()
    current_freq = 0
    
    for step in range(50):
        obs = result.observation
        
        # Update jammed channel list
        for ch_state in obs.channel_states:
            if ch_state.is_jammed:
                jammed_channels.add(ch_state.frequency_index)
        
        # Find clear channel
        clear_channels = [i for i in range(64) if i not in jammed_channels]
        if clear_channels:
            current_freq = random.choice(clear_channels)
        
        # Adaptive action
        action = AntiJammingAction(
            frequency_channel=current_freq,
            tx_power_dbm=20.0,
            modulation="QPSK",
            coding_rate="2/3",
            beam_direction=step % 8,  # Rotate beam
            enable_fhss=True,
            enable_dsss=True,
            enable_notch_filter=True
        )
        
        result = await env.step(action)
        
        if result.done:
            break
    
    await env.close()

asyncio.run(run_heuristic_agent())

Validation

Verify environment compliance with OpenEnv specification:

# Install OpenEnv CLI
pip install openenv[cli]

# Validate environment
openenv validate .

# Expected output:
# ✓ openenv.yaml found and valid
# ✓ Action/Observation models properly defined
# ✓ reset() returns StepResult
# ✓ step() returns StepResult
# ✓ state() returns State
# ✓ Dockerfile builds successfully

Training an RL Agent

Example using Stable-Baselines3:

from stable_baselines3 import PPO
from stable_baselines3.common.env_util import make_vec_env

# This requires a Gym wrapper (not included in base package)
# See examples/train_with_sb3.py for complete implementation

# Pseudocode:
# env = make_vec_env(lambda: GymWrapper(AntiJammingEnv(task="easy")), n_envs=4)
# model = PPO("MlpPolicy", env, verbose=1)
# model.learn(total_timesteps=100000)
# model.save("anti_jamming_ppo")

Deployment to Hugging Face Spaces

# Login to Hugging Face
huggingface-cli login --token $HF_TOKEN

# Create Space
huggingface-cli repo create anti-jamming-env --type space --space_sdk docker

# Push to Space
git remote add hf https://huggingface.co/spaces/Bhargav-2007/anti-jamming-env
git push hf main

# Space will auto-build from Dockerfile
# Access at: https://huggingface.co/spaces/Bhargav-2007/anti-jamming-env

Performance Benchmarks

Technical Details

Physics Simulation

The environment implements:

• Free-space path loss: FSPL = twenty log ten of distance plus twenty log ten of frequency plus constant
• Rayleigh fading: Time-varying multipath channel
• AWGN: Thermal noise based on bandwidth and noise figure
• SINR calculation: Accounts for signal, interference, and noise
• Modulation-specific BER: Bit error rate models for each modulation scheme
• Throughput: Shannon-like capacity with practical constraints

Jammer Implementations

Six jammer types with increasing sophistication:

1. Spot Jammer: Single frequency, high power
2. Barrage Jammer: Wide bandwidth, distributed power
3. Sweep Jammer: Time-varying frequency coverage
4. Reactive Jammer: Follows transmitter frequency
5. Pulse Jammer: Intermittent on-off pattern
6. Smart Learning Jammer: Pattern recognition and prediction

Contributing

Contributions welcome. Please ensure:

• Code passes all tests: pytest tests/
• OpenEnv validation succeeds: openenv validate .
• Baseline script reproduces scores
• Documentation updated for new features

License

MIT License. See LICENSE file for details.

Citation

@software{anti_jamming_env_2026,
  author = {Bhargav-2007},
  title = {AI-Powered Anti-Jamming Communication System},
  year = {2026},
  publisher = {GitHub},
  url = {https://github.com/Bhargav-2007/openenv-anti-jamming}
}

Contact

• GitHub: @Bhargav-2007
• Hugging Face: Bhargav-2007
• Environment: anti-jamming-env

Acknowledgments

Built for the OpenEnv Hackathon. Special thanks to Meta AI and Hugging Face for the OpenEnv framework and infrastructure support.