Khalid Ahmed

Research engineer at Fraunhofer IIS. Implementing an LTE/5G uplink system level simulator using MATLAB object oriented programming. The simulator is used to test new multiple access schemes to reduce the latency for URLLC users in the uplink. LTE/5G protocol stack development. Implementing short Transmission Time Interval (sTTI) feature in LTE release 15 to reduce latency. The development is done using Open Air Interface (OAI) platform.

The task was to develop and enhance the Open Air Interface (OAI) simulation environment to allow for shorter transmission time intervals (TTI) in the current LTE protocol stack on the physical layer in the downlink using C programming language. The task was a step towards development of 5G cellular stack. A 7-OFDM symbol downlink TTI was developed and tested using OAI simulation environment.

Student research assistant (Hiwi) in RFID Project at LIKE, Friedrich-Alexander-University. Implementing a maximum likelihood (ML) receiver for RFID tag reader using multiple receive antennas using Matlab. Validating the performance of ML receiver in a multiple input-multiple output (MIMO) double rayleigh backscat- ter channel.

Masters of Science student in Communication and Multimedia Engineering