172 citations · 336 across the 12 of their papers we have counts for
13 papers
LoS Blockage in Pinching-Antenna Systems: Curse or Blessing?
Zhiguo Ding, H. Vincent Poor
This letter is to investigate the impact of line-of-sight (LoS) blockage on pinching-antenna systems. Analytical results are developed for both single-user and multi-user cases to…
MIMO-PASS: Uplink and Downlink Transmission via MIMO Pinching-Antenna Systems
Ali Bereyhi, Chongjun Ouyang, Saba Asaad +2
Pinching-antenna systems (PASSs) are a recent flexible-antenna technology that is realized by attaching simple components, referred to as pinching elements, to dielectric waveguide…
Flexible-Antenna Systems: A Pinching-Antenna Perspective
Zhiguo Ding, Robert Schober, H. Vincent Poor
Flexible-antenna systems have recently received significant research interest due to their capability to reconfigure wireless channels intelligently. This paper focuses on a new ty…
Hybrid NOMA Assisted OFDMA Uplink Transmission
Zhiguo Ding, H. Vincent Poor
Hybrid non-orthogonal multiple access (NOMA) has recently received significant research interest due to its ability to efficiently use resources from different domains and also its…
Next Generation Multiple Access for IMT Towards 2030 and Beyond
Zhiguo Ding, Robert Schober, Pingzhi Fan +1
Multiple access techniques are fundamental to the design of wireless communication systems, since many crucial components of such systems depend on the choice of the multiple acces…
Design of Downlink Hybrid NOMA Transmission
Zhiguo Ding, Robert Schober, H. Vincent Poor
The aim of this paper is to develop hybrid non-orthogonal multiple access (NOMA) assisted downlink transmission. First, for the single-input single-output (SISO) scenario, i.e., ea…
Utilizing Imperfect Resolution of Near-Field Beamforming: A Hybrid-NOMA Perspective
Zhiguo Ding, H. Vincent Poor
This letter studies how the imperfect resolution of near-field beamforming, the key feature of near-field communications, can be used to improve the throughput and connectivity of…
NOMA-Based Coexistence of Near-Field and Far-Field Massive MIMO Communications
Zhiguo Ding, Robert Schober, H. Vincent Poor
This letter considers a legacy massive multiple-input multiple-output (MIMO) network, in which spatial beams have been preconfigured for near-field users, and proposes to use the n…
Impact of NOMA on Age of Information: A Grant-Free Transmission Perspective
Z. Ding, R. Schober, H. V. Poor
The aim of this paper is to characterize the impact of non-orthogonal multiple access (NOMA) on the age of information (AoI) of grant-free transmission. In particular, a low-comple…
Design of Massive-MIMO-NOMA with Limited Feedback
Zhiguo Ding, H. Vincent Poor
In this letter, a low-feedback non-orthogonal multiple access (NOMA) scheme using massive multiple-input multiple-output (MIMO) transmission is proposed. In particular, the propose…
NOMA: An Information Theoretic Perspective
Peng Xu, Zhiguo Ding, Xuchu Dai +1
In this letter, the performance of non-orthogonal multiple access (NOMA) is investigated from an information theoretic perspective. The relationships among the capacity region of b…
Cooperative Non-Orthogonal Multiple Access in 5G Systems
Zhiguo Ding, Mugen Peng, H. V. Poor
Non-orthogonal multiple access (NOMA) has recently received considerable attention as a promising candidate for 5G systems. A key feature of NOMA is that users with better channel…
Cooperative Energy Harvesting Networks with Spatially Random Users
Zhiguo Ding, H. Vincent Poor
This paper considers a cooperative network with multiple source-destination pairs and one energy harvesting relay. The outage probability experienced by users in this network is ch…