IoT Lab

Our Ph.D. student has successfully defended his Ph.D. thesis. His research topic was QoS Provisioning in D2D enabled Future Cellular Networks. Core findings of the thesis are (among others):

1) Mode selection mechanism critically affects the achievable QoS performance of a D2D communication link; therefore, designing efficient estimators for the underlying wireless channel features has paramount importance.
2) Benefits of using overlay D2D communication over underlay D2D communication diminishes as the quality of underlying wireless channel features (used for mode selection) deteriorates.
3) If a relay device (in the case of relay-assisted D2D communication) operates under stricter QoS constraints then QoS constraints imposed at the transmitting device become irrelevant.
4) QoS performance of a D2D communication link can be enhanced by employing retransmission schemes at the cost of extra bandwidth. To this end, this thesis proposes a novel framework for truncated HARQ-enabled D2D communication, which provides a suitable tradeoff between QoS and bandwidth in different network conditions for both overlay and underlay settings.

This thesis resulted in the following journal publications:

1) https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8651358
2) https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9502007
3) https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=8977527
4) https://onlinelibrary.wiley.com/doi/epdf/10.1002/ett.4339

We wish Dr. Syed Waqas Haider Shah the very best for his future endeavours.

Information Technology University Syed Waqas Haider