568 citations · 831 across the 93 of their papers we have counts for
8 papers · 2 filters
MIMO-ISAC: Performance Analysis and Rate Region Characterization
Chongjun Ouyang, Yuanwei Liu, Hongwen Yang
This article analyzes the performance of sensing and communications (S\&C) achieved by a multiple-input multiple-output downlink integrated S\&C (ISAC) system. Three ISAC scenarios…
Integrated Sensing and Communications: A Mutual Information-Based Framework
Chongjun Ouyang, Yuanwei Liu, Hongwen Yang +1
Integrated sensing and communications (ISAC) is potentially capable of circumventing the limitations of existing frequency-division sensing and communications (FDSAC) techniques. H…
Capacity Scaling Law in Massive MIMO with Antenna Selection
Chongjun Ouyang, Hao Xu, Xujie Zang +1
Antenna selection is capable of handling the cost and complexity issues in massive multiple-input multiple-output (MIMO) channels. The sum-rate capacity of a multiuser massive MIMO…
Some Discussions on PHY Security in DF Relay
Chongjun Ouyang, Hao Xu, Xujie Zang +1
Physical layer (PHY) security in decode-and-forward (DF) relay systems is discussed. Based on the types of wiretap links, the secrecy performance of three typical secure DF relay m…
How Should IRSs Scale to Harden Multi-Antenna Channels?
Ali Bereyhi, Saba Asaad, Chongjun Ouyang +3
This work extends the concept of channel hardening to multi-antenna systems that are aided by intelligent reflecting surfaces (IRSs). For fading links between a multi-antenna trans…
NOMA-ISAC: Performance Analysis and Rate Region Characterization
Chongjun Ouyang, Yuanwei Liu, Hongwen Yang
This paper analyzes the performance of a multiuser integrated sensing and communications (ISAC) system, where nonorthogonal multiple access (NOMA) is exploited to mitigate inter-us…
Channel Hardening of IRS-Aided Multi-Antenna Systems: How Should IRSs Scale?
Ali Bereyhi, Saba Asaad, Chongjun Ouyang +3
Unlike active array antennas, intelligent reflecting surfaces (IRSs) are efficiently implemented at large dimensions. This allows for traceable realizations of large-scale IRS-aide…
Performance of Downlink and Uplink Integrated Sensing and Communications (ISAC) Systems
Chongjun Ouyang, Yuanwei Liu, Hongwen Yang
This letter analyzes the fundamental performance of integrated sensing and communications (ISAC) systems. For downlink and uplink ISAC, the diversity orders are analyzed to evaluat…