Bharath Raj Govindraj

WLAN Test Engineer with three years of experience at Zilogic Systems, a partner of Qualcomm, specializing in the evaluation and optimization of wireless LAN device performance. Demonstrated expertise in assessing WLAN products against stringent criteria for speed, reliability, and functionality in real-world scenarios. Proven ability to enhance product quality through meticulous testing and analysis. Career objective focuses on further advancing skills in wireless technology within a dynamic engineering team.

Key responsibilities include:

• Designing and executing performance tests to evaluate throughput, latency, and signal strength in WLAN modules and devices.
• Analyzing test results to identify areas for optimization and troubleshooting performance-related issues.
• Collaborating with development and engineering teams to provide insights and solutions that enhance product performance.
• Running both automated and manual tests to measure performance under various environmental conditions.
• Ensuring products meet Qualcomm’s performance benchmarks and industry standards (e.g., IEEE 802.11).
• Creating detailed reports and presenting findings to key stakeholders, contributing to the continuous improvement of WLAN solutions.

This role has enabled me to develop advanced expertise in wireless network performance analysis, test methodologies, and problem-solving within a high-performance environment.

Work Area:

• Cabled Peak Testing (2G, 5G, 6G Radios): Conducted in-depth performance validation of radio devices across 2G, 5G, and 6G bands, focusing on key metrics such as SLO (Service Level Objectives), MLO (Multi-Link Operation), TBTC (Traffic-Based Transmission Control), and DBDC (Dual Band Dual Concurrent) in high-concurrency scenarios.
• MLO (Multi-Link Operation) Testing: Performed validation on both 2-link and 3-link MLO scenarios, analyzing device performance in complex multi-link configurations to assess throughput, latency, and fault tolerance in real-world conditions.
• Rate vs. Range Testing: Evaluated throughput performance versus signal range, ensuring that WLAN devices maintain optimal data rates across various distances and environmental factors.
• TXBF (Transmitter Beamforming): Tested and validated TXBF techniques, measuring improvements in signal strength, throughput, and overall network efficiency under various conditions.
• 360° Orientation Testing: Conducted comprehensive 360-degree orientation testing to assess the performance of WLAN devices in various directional placements, addressing issues like signal degradation and interference in real-world usage.
• Veriwave Multi-Client Testing: Utilized Veriwave for multi-client performance testing, evaluating how multiple concurrent connections impact device performance in terms of throughput, latency, and stability under high-traffic environments.
• Concurrency Testing: Validated performance under high-concurrency scenarios, measuring the impact of simultaneous device connections and traffic loads on the overall WLAN performance.
• Boot KPI Validation:Validated the boot-up time of Devices Under Test (DUT), measuring critical KPIs such as the time to first beacon and first ping using sniffer capture techniques.
  
  Key test cases included:
• First Beacon Time (e.g., 92 seconds)
  Last Beacon Time before reboot (used as a time reference).
  First Ping Time (e.g., 96 seconds), tracking the device’s responsiveness after boot.
  Covered both controller boot time and agent boot time based on specific test requirements to ensure system readiness and performance.
  
• Malton Voice Simulator Testing:

Tested voice latency and reliability using the Malton Voice Simulator, simulating voice traffic through a SIP server for real-world voice communication scenarios.

Involved setting up a topology with two boards (each with chipsets), acting as end clients, to generate voice traffic between clients and through the SIP server, ensuring the latency and reliability of voice communication within the local area network.
Assessed the overall quality of voice traffic under different load conditions to ensure smooth telecommunication performance.