69 citations · 252 across the 66 of their papers we have counts for
9 papers · 2 filters
Coverage Analysis of Relay Assisted Millimeter Wave Cellular Networks with Spatial Correlation
Simin Xu, Nan Yang, Biao He +1
We propose a novel analytical framework for evaluating the coverage performance of a millimeter wave (mmWave) cellular network where idle user equipments (UEs) act as relays. In th…
Trellis-Coded Non-Orthogonal Multiple Access
Xun Zou, Mehdi Ganji, Hamid Jafarkhani
In this letter, we propose a trellis-coded nonorthogonal multiple access (NOMA) scheme. The signals for different users are produced by trellis coded modulation (TCM) and then supe…
Optimal deployments of UAVs with directional antennas for a power-efficient coverage
Jun Guo, Philipp Walk, Hamid Jafarkhani
To provide a reliable wireless uplink for users in a given ground area, one can deploy Unmanned Aerial Vehicles (UAVs) as base stations (BSs). In another application, one can use U…
MmWave Amplify-and-Forward MIMO Relay Networks with Hybrid Precoding/Combining Design
Lisi Jiang, Hamid Jafarkhani
In this paper, we consider the amplify-and-forward relay networks in mmWave systems and propose a hybrid precoder/combiner design approach. The phase-only RF precoding/combining ma…
Space-Time Signal Design for Multilevel Polar Coding in Slow Fading Broadcast Channels
Hossein Khoshnevis, Ian Marsland, Hamid Jafarkhani +1
Slow fading broadcast channels can model a wide range of applications in wireless networks. Due to delay requirements and the unavailability of the channel state information at the…
Energy Efficient Node Deployment in Wireless Ad-hoc Sensor Networks
Jun Guo, Saeed Karimi-Bidhendi, Hamid Jafarkhani
We study a wireless ad-hoc sensor network (WASN) where sensors gather data from the surrounding environment and transmit their sensed information to fusion centers (FCs) vi…
Cooperative Asynchronous Non-Orthogonal Multiple Access with Power Minimization Under QoS Constraints
Xun Zou, Mehdi Ganji, Hamid Jafarkhani
Recent studies have demonstrated the superiority of non-orthogonal multiple access (NOMA) over orthogonal multiple access (OMA) in cooperative communication networks. In this paper…
MOCZ for Blind Short-Packet Communication: Some Practical Aspects
Philipp Walk, Peter Jung, Babak Hassibi +1
We will investigate practical aspects for a recently introduced blind (noncoherent) communication scheme, called modulation on conjugate-reciprocal zeros (MOCZ), which enables reli…
Using Quantization to Deploy Heterogeneous Nodes in Two-Tier Wireless Sensor Networks
Saeed Karimi-Bidhendi, Jun Guo, Hamid Jafarkhani
We study a heterogeneous two-tier wireless sensor network in which N heterogeneous access points (APs) collect sensing data from densely distributed sensors and then forward the da…