7 citations · 18 across the 7 of their papers we have counts for
8 papers · 1 filter
Capacity Degradation with Modeling Hardware Impairment in Large Intelligent Surface
Sha Hu, Fredrik Rusek, Ove Edfors
In this paper, we consider capacity degradations stemming from potential hardware impairments (HWI) of newly proposed Large Intelligent Surface (LIS) systems. Without HWI, the util…
On Ergodic Capacity and Optimal Number of Tiers in UAV-Assisted Communication Systems
Sha Hu
In this paper, we consider unmanned aerial vehicle (UAV) assisted communication systems where a number of UAVs are utilized as multi-tier relays between a number of users and a bas…
Unmanned Aerial Vehicle Assisted Cellular Communication
Sha Hu, Jose Flordelis, Fredrik Rusek +1
In this paper, we consider unmanned aerial vehicles (UAVs) assisted cellular communication system, where UAVs can be used as amplify-and-forward (AF) relays. The effective channel…
Modulus Zero-Forcing Detection for MIMO Channels
Sha Hu, Fredrik Rusek
We propose a modulus based zero-forcing (MZF) detection for multi-input multi-output (MIMO) channels. Traditionally, a ZF detector nulls out all interferences from other layers whe…
On Time-of-Arrival Estimation in NB-IoT Systems
Sha Hu, Xuhong Li, Fredrik Rusek
We consider time-of-arrival (ToA) estimation of a first arrival-path for a device working in narrowband Internet-of-Things (NB-IoT) systems. Due to a limited 180 KHz bandwidth used…
User Assignment with Distributed Large Intelligent Surface (LIS) Systems
Sha Hu, Krishna Chitti, Fredrik Rusek +1
In this paper, we consider a wireless communication system where a large intelligent surface (LIS) is deployed comprising a number of small and distributed LIS-Units. Each LIS-Unit…