NIT Sikkim

About Project

Real-Life Communication Systems & SDR Laboratory

National Institute of Technology (NIT) Sikkim

Akademika has set up a Modern Real-Life Communication Lab at NIT Sikkim that allows students to learn wireless communication at the physical layer using both hardware modulation kits and a 6 GHz Software-Defined Radio (SDR) platform.

Students design a modulation scheme → generate the waveform → transmit it over RF → capture it → demodulate → decode → and understand how real noise and channel effects change the data. This gives them a true practical insight into how wireless networks like 4G/5G actually operate.

SDR-Enabled Real Wireless Learning The SDR enables:

1. FM, AM, ASK, FSK, BPSK, QPSK generation & reception
2. Live constellation diagrams and spectral analysis
3. GNU Radio & Python-based signal flow editing
4. RF experiments up to 6 GHz with various bandwidths

Students don’t just simulate — they transmit real signals over air inside the lab.

Hardware-Based Digital Communication Systems

To support deep physical-layer understanding, the lab includes:

1. GMSK / GFSK Modulation–Demodulation kits : For Gaussian filtering & bandwidth-efficient modulation
2. QAM / DQAM Trainer: Constellation observation & bandwidth efficiency study
3. QPSK / DQPSK Trainer: Differential coding, phase changes & noise behavior
4.  DCL-QPSK: Convolution + Viterbi Error-Correction Kit , Satellite-Grade FEC implementation
5. CRC + MSK Trainer: Error detection, MSK waveform visualization
6. DPCM / ADPCM Voice Communication Kit : Real-time audio transmission, quantization noise study

What Students Achieve

1. Configure SDR as transmitter and receiver
2. Build live QPSK/QAM communication links
3. Analyze phase, amplitude & frequency transitions
4. Observe impact of SNR, bandwidth & fading
5. Study BER curves and error correction
6. Shift seamlessly between simulation & actual RF

Students experience how communication systems truly behave  not just how textbooks describe them.

Career-Ready Skill Outcomes Prepared for roles in:

1. SDR Development & Wireless PHY Layer R&D
2. SATCOM & Defence Communications
3. 5G/6G Modem Development
4. RF Signal Intelligence & Testing
5. IoT and Tactical Communications Engineering
6. Transforming Learners into Wireless Engineers

This lab gives NIT Sikkim students a full RF learning journey:
‍
Theory → Simulation → Hardware → Real Air Transmission
‍
building confidence and competency for the future of communication systems.