2 citations · 3 across the 4 of their papers we have counts for
6 papers
Downlink Asynchronous Non-Orthogonal Multiple Access with Quantizer Optimization
Xun Zou, Mehdi Ganji, Hamid Jafarkhani
In this letter, we study a two-user downlink asynchronous non-orthogonal multiple access (ANOMA) with limited feedback. We employ the max-min criterion for the power allocation and…
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…
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…
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…
An Analysis of Two-User Uplink Asynchronous Non-Orthogonal Multiple Access Systems
Xun Zou, Biao He, Hamid Jafarkhani
Recent studies have numerically demonstrated the possible advantages of the asynchronous non-orthogonal multiple access (ANOMA) over the conventional synchronous non-orthogonal mul…
Asynchronous Channel Training in Multi-Cell Massive MIMO
Xun Zou, Hamid Jafarkhani
Pilot contamination has been regarded as the main bottleneck in time division duplexing (TDD) multi-cell massive multiple-input multiple-output (MIMO) systems. The pilot contaminat…