11 citations · 19 across the 23 of their papers we have counts for
11 papers · 1 filter
The Tradeoff Between Coverage and Computation in Wireless Networks
Erdem Koyuncu
We consider a distributed edge computing scenario consisting of several wireless nodes that are located over an area of interest. Specifically, some of the "master" nodes are taske…
Optimal Placement of UAVs for Minimum Outage Probability
Maryam Shabanighazikelayeh, Erdem Koyuncu
We consider multiple unmanned aerial vehicles (UAVs) serving a density of ground terminals (GTs) as base stations. The objective is to minimize the outage probability of GT-to-UAV…
Interleaving Channel Estimation and Limited Feedback for Point-to-Point Systems with a Large Number of Transmit Antennas
Erdem Koyuncu, Xun Zou, Hamid Jafarkhani
We introduce and investigate the opportunities of multi-antenna communication schemes whose training and feedback stages are interleaved and mutually interacting. Specifically, unl…
Power-Efficient Deployment of UAVs as Relays
Erdem Koyuncu
Optimal deployment of unmanned aerial vehicles (UAVs) as communication relays is studied for fixed-rate variable-power systems. The considered setup is a set of ground transmitters…
Performance Gains of Optimal Antenna Deployment for Massive MIMO Systems
Erdem Koyuncu
We consider the uplink of a single-cell multi-user multiple-input multiple-output (MIMO) system with several single antenna transmitters/users and one base station with antenna…
Deployment and Trajectory Optimization of UAVs: A Quantization Theory Approach
Erdem Koyuncu, Maryam Shabanighazikelayeh, Hulya Seferoglu
Optimal deployment and movement of multiple unmanned aerial vehicles (UAVs) is studied. The considered scenario consists of several ground terminals (GTs) communicating with the UA…
Distributed Channel Quantization for Two-User Interference Networks
Xiaoyi Leo Liu, Erdem Koyuncu, Hamid Jafarkhani
We introduce conferencing-based distributed channel quantizers for two-user interference networks where interference signals are treated as noise. Compared with the conventional di…
Variable-Length Channel Quantizers for Maximum Diversity and Array Gains
Erdem Koyuncu, Hamid Jafarkhani
We consider a multiple-antenna fading channel with quantized channel state information at the transmitter (CSIT). Our goal is to maximize the diversity and array gains…
Very Low-Rate Variable-Length Channel Quantization for Minimum Outage Probability
Erdem Koyuncu, Hamid Jafarkhani
We identify a practical vector quantizer design problem where any fixed-length quantizer (FLQ) yields non-zero distortion at any finite rate, while there is a variable-length quant…
The Necessity of Relay Selection
Erdem Koyuncu, Hamid Jafarkhani
We determine necessary conditions on the structure of symbol error rate (SER) optimal quantizers for limited feedback beamforming in wireless networks with one transmitter-receiver…
Distributed Beamforming in Wireless Multiuser Relay-Interference Networks with Quantized Feedback
Erdem Koyuncu, Hamid Jafarkhani
We study quantized beamforming in wireless amplify-and-forward relay-interference networks with any number of transmitters, relays, and receivers. We design the quantizer of the ch…