4 documents found, page 1 of 1
Spectrum sharing for LTE and 5G-NR coexistence
Busari, Sherif Adeshina; Correia, Noélia; Saghezchi, Firooz B.; Mumtaz, Shahid; Rodriguez, JonathanSpectrum sharing provides a rapid migration pathway toward 5G by enabling the coexistence of 4G LTE and 5G new radio (NR) that share the same spectrum. Due to significant differences in the LTE and 5G-NR air interfaces, several enablers are required to facilitate the spectrum sharing. In this study, we explore the coexistence features and investigate their impacts on network performance. For static and dynamic ...
Performance evaluation of radio resource schedulers in LTE and 5G NR two-tier H...
Busari, Sherif Adeshina; Correia, Noélia; Mumtaz, Shahid; Rodriguez, Jonathan; Saghezchi, Firooz B.Network performance is critically dependent on the employed radio resource scheduler (RRS). The impact becomes even more significant in 5G ultra-dense networks due to the challenges of complicated base station distribution, user association, load balancing and inter-cell interference, among others. Using a combination of three popular schedulers (i.e., round robin (RR), proportional fairness (PF) and best chann...
Millimeter-wave massive MIMO for capacity-coverage optimization in 5G heterogen...
Busari, Sherif AdeshinaToday's Long Term Evolution Advanced (LTE-A) networks cannot support the exponential growth in mobile traffic forecast for the next decade. By 2020, according to Ericsson, 6 billion mobile subscribers worldwide are projected to generate 46 exabytes of mobile data traffic monthly from 24 billion connected devices, smartphones and short-range Internet of Things (IoT) devices being the key prosumers. In response, ...
A novel mapping technique for ray tracer to system-level simulation
Khan, Muhammad Awais; Busari, Sherif Adeshina; Saidul Huq, Kazi Mohammed; Mumtaz, Shahid; Al-Rubaye, Saba; Rodriguez, Jonathan; Al-Dulaimi, AnwerSimulations have become remarkably useful in evaluating the performance of new techniques and algorithms in communication networks. This is due to its comparative cost, time and complexity advantage over the analytical and field trial approaches. For large-scale networks, system-level simulators (SLS) are used to assess the performance of the systems. The SLS typically employs statistical channel models to char...