352 citations · 2.1k across the 52 of their papers we have counts for
6 papers · 2 filters
On the DoF of Two-way Relay Networks with or without Relay Caching
Mehdi Ashraphijuo, Vaneet Aggarwal, Xiaodong Wang
Two-way relay is potentially an effective approach to spectrum sharing and aggregation by allowing simultaneous bidirectional transmissions between source-destinations pairs. This…
Joint Energy-Bandwidth Allocation for Multi-User Channels with Cooperating Hybrid Energy Nodes
Vaneet Aggarwal, Mark R. Bell, Anis Elgabli +2
In this paper, we consider the energy-bandwidth allocation for a network of multiple users, where the transmitters each powered by both an energy harvester and conventional grid, a…
Super-Resolution Delay-Doppler Estimation for OFDM Passive Radar
Le Zheng, Xiaodong Wang
In this paper, we consider the problem of joint delay-Doppler estimation of moving targets in a passive radar that makes use of orthogonal frequency-division multiplexing (OFDM) co…
The DoF of Two-way Butterfly Networks
Mehdi Ashraphijuo, Vaneet Aggarwal, Xiaodong Wang
This paper studies the two-way butterfly network, a class of two-way four-unicast networks. We first show that bidirectional links do not increase the degrees of freedom for this n…
Beamspace Channel Estimation for Millimeter-Wave Massive MIMO Systems with Lens Antenna Array
Linglong Dai, Xinyu Gao, Shuangfeng Han +2
By employing the lens antenna array, beamspace MIMO can utilize beam selection to reduce the number of required RF chains in mmWave massive MIMO systems without obvious performance…
Position-aided Large-scale MIMO Channel Estimation for High-Speed Railway Communication Systems
Tao Li, Xiaodong Wang, Pingyi Fan +1
We consider channel estimation for high-speed railway communication systems, where both the transmitter and the receiver are equipped with large-scale antenna arrays. It is known t…