Sudula Sandeep

**** ****** *****, **, *** adyso6@r.postjobfree.com 240-***-**** linkedin.com/in/sudula-sandeep-347112151 EDUCATION

Master of Science in Telecommunications Engineering & Management, GPA: 3.7/4 Anticipated May 2023 University of Maryland (UMCP) College Park, MD, United States Bachelor of Technology, Electronics and Communication Engineering, GPA: 7.01/10 May 2018 National Institute of Technology (NIT-MIZORAM) Mizoram, India TECHNICAL SKILLS

• Cellular Technologies & Services: 5G NR, 4G LTE, UMTS, HSPA, OFDM, CDMA2000, GSM, VOLTE, CSFB, SRVCC, Vo-NR.

• Wireless protocols: NAS, SDAP, RRC, PDCP, RLC, MAC, PHY, RADIUS, DIAMETER(DEA&DRA), SIGTRAN (STP &SCP).

• Wi-Fi Technologies & Protocols : 802.11 a/b/g/n/ac/ad/ax, ERP-DSS,ERP-OFDM,WDS, WPA2/3, WEP, EAPS-TTLS, AAA.

• Wireless Tools: iBwave, INSSIDER, Ruckus, EKahau, Net Spot, Google RF network planner.

• RF Propagation Concepts: Propagation effects, Link- budget analysis, Antenna design, Return loss, VSWR, Rx sensitivity, propagation models, System design, Spectrum analysis, NF, TRP, TIS, EVM, IP3, NF, P1dB, SNR.

• Network Protocols: (TCP/UDP)-IP, SS7, SCTP, HTTPS, DNS, ICMP, MPLS-VPN, IP-Sec, OSPF, BGP, EIGRP, RIP V-1 &2.

• OS Concepts: IPC communication, Deadlocks, Mutex, Semaphores, Process synchronization & scheduling.

• Troubleshooting Tools : Wireshark, Spectrum Analyzer,Oscilloscope, VNA, Anritsu PIM tester.

• Programming & Scripting Languages: C, C++, Python, MATLAB, Shell Scripting, Serial Programming (AT Commands). RESEARCH INTEREST & SURVEY

• Research Interest: Indoor and outdoor DAS, Small Cells, Het-Net, Fixed wireless, Neutral Host CBRS networks (MOCN), Massive MIMO, Beamforming, mm Wave, Carrier Aggregation, LTE WIFI, LAA, e-MBMS, Comp, SA/NSA, NB-IOT, LTE-M, Multi- Access edge Computing, O-RAN, 5G-Split architecture.

• Research survey & Technical Presentations: May 2022

• Studied journal “telecommunication policy” about Wi-Fi-6 vs 5G, presented about key objectives & use-cases of both technologies.

• Studied journal “Evolved Multimedia Broadcast/Multicast Service (eMBMS) in LTE-Advanced: Overview and Rel 11 Enhancements” as a part of technical presentation in 5G course.

• Technical Class Presentation on “Neutral Host CBRS Networks” and its advantages compared to Indoor DAS.

• Scholarly paper on the in Role of SAS on Dynamic Spectral Access CBRS 5G networks. Oct 2022

• Formulated a IEEE scholarly research paper about the role of SAS and factors contributing to the delay in dynamic spectrum allocation, which impact latency and performance of the 5G private network. WORK EXPERIENCE - I

Pollen Mobile (Pronto AI subsidiary) San Francisco, CA Radio Network Engineer Jun 2022 – Aug 2022

• Worked on Roaming integration involving configuring S-6 (Diameter and SS7 connection) and S5/S8 interfaces between Pollen CBRS Private network(MNO) and Gigsky & US Cellular Telecom Operators(MVNO).

• Worked on planning of decentralized private networks in the Bay area using the Google RF network planner Tool. Project on Network Validation using Raspberry-pi-4 to report coverage details:

• Configuring Raspberry-pi using nmcli /mbim to connect to the APN based PDN connection using AT commands and also to report network coverage details recorded by omni-direction antenna.

• Automated Configuring Sierra Modem (setup APN, PDN context) using python Scripts for network validation.

• Mapping the Coverage details (SNR, RSRP, RSSI) on to map to access network validation info at each location.

• Automated exporting network validation logs including SNR, RSRP, RSRQ along with NMEA GPS coordinates. WORK EXPERIENCE - II

L & T Chiyoda (Larsen and Toubro subsidiary) Vadodara, India Telecommunication Engineer Aug 2018 – Aug 2021

• Worked as a Telecom engineer in the field of Telecom & Security Systems with the exposure to Optical/ Radio transmission networks, SDH Multiplexers, LAN, CCTV System, PABX Analog & IP Telephony, Access Control System, PAGA System, intrusion detection System, TETRA Radio System, Telecom supervisory system.

• Preparation of MTO, detailed design documents and drawings as per project Plan.

• Response to Technical queries, Vendor clarifications meetings during bidding and design phase.

• Coordination with Telecom vendors and Clients for document approval.

• Supporting Site team for Construction and commissioning for engineering queries ACADEMIC PROJECTS

Design, Analyze and Troubleshoot Multi operator active DAS system in 4-Floor Stadium using IB-Wave Dec 2022

• Simulated and designed a multi-operator active DAS system in a stadium with 6 sectors, each sector is covered by operator-1 & 2 deploying LTE at 700 MHz & 2100 MHz band and WCDMA at 850 MHz & 1900 MHz band respectively.

• Configured channel number, channel bandwidth(15MHz), and split users according to operator penetration rate (50% of users with operator-1/2) and technology breakdown (50% of users of operator-1/2 using LTE / WCDMA technology).

• Network Optimization to define cell loading, RSRP threshold(-100dBm) and RSRP margin(5dB) for the potential handoff between sectors.

• Down-tiling the undesired sector antenna to reduce interference and % overlap to improve SINR and end user throughput.

• Configured to use three 5MHz channel instead of one 15MHz channel for 6 sectors (i.e, 1 channel / 2 sector) for effective channel frequency reuse.

• Verified the Signal strength, Best Server and LTE RSRP for Compliance criteria’s. Wi-Fi monitoring, planning, Site survey and troubleshooting using Net Spot Tool Apr 2022

• Analyzed Wi-Fi network of university building and identified the area where there is no coverage using the site survey reports.

• Troubleshooting Wi-Fi Connectivity issues by improving signal strength and identified noise sources using this tool. Wi-Fi floor planning using Ruckus Tool Apr 2022

• Analyzed the floor planning of university building across each floor and design Wi-Fi network as per client density, coverage and interference.

• Configure Wi-Fi routers as per the coverage or density profile and application type Analyzed the configuration of Wi-Fi network using InSSIDer Tool Mar 2022

• Analyzed the configuration of Wi-Fi including channel settings, security, signal strength, and the impact of neighboring Wi-Fi networks using InSSIDer Tool.

• Studied the impact of adjacent and co-channel interference on Wi-Fi due to other Wi-Fi networks and wireless devices Cellular coverage analysis of 3-sectored base station Nov 2021

• The Key feature of the project explore the effects of down tilting antennas on cell performance, both from a coverage and an interference/throughput point of view.

• Implemented a Python application which will simulate the downlink behavior of two base stations along a road communicating with mobiles travelling the road.

• Project code: https://github.com/sandeepsudula/Cellular-Coverage-analysis-for-sectored-Basestation.git TRAININGS & CERTIFICATION Jun 2022

• Approved CBRS Certified Professional Installer (CPI) by Google.

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