49 citations · 103 across the 21 of their papers we have counts for
9 papers · 1 filter
Beyond Empirical Models: Pattern Formation Driven Placement of UAV Base Stations
Jiaxun Lu, Shuo Wan, Xuhong Chen +3
This work considers the placement of unmanned aerial vehicle base stations (UAV-BSs) with criterion of minimum UAV-recall-frequency (UAV-RF), indicating the energy efficiency of mo…
Energy-efficient 3D UAV-BS Placement Versus Mobile Users' Density and Circuit Power
Jiaxun Lu, Shuo Wan, Xuhong Chen +1
Properly 3D placement of unmanned aerial vehicle mounted base stations (UAV-BSs) can effectively prolong the life-time of the mobile ad hoc network, since UAVs are usually powered…
Directivity-Beamwidth Tradeoff of Massive MIMO Uplink Beamforming for High Speed Train Communication
Xuhong Chen, Jiaxun Lu, Tao Li +2
High-mobility adaption and massive Multiple-input Multiple-output (MIMO) application are two primary evolving objectives for the next generation high speed train (HST) wireless com…
Toward Traffic Patterns in High-speed Railway Communication Systems: Power Allocation and Antenna Selection
Jiaxun Lu, Ke Xiong, Xuhong Chen +1
In high-speed railway (HSR) communication systems, distributed antenna is usually employed to support frequent handover and enhance the signal to noise ratio to user equipments. In…
Massive MIMO Beam-forming for High Speed Train Communication: Directivity vs Beamwidth
Xuhong Chen, Jiaxun Lu, Pingyi Fan
High-mobility adaption and massive Multiple-input Multiple-output (MIMO) application are two primary evolving objectives for the next generation high speed train communication syst…
Shannon Shakes Hands with Chernoff: Big Data Viewpoint On Channel Information Measures
Shanyun Liu, Rui She, Jiaxun Lu +1
Shannon entropy is the most crucial foundation of Information Theory, which has been proven to be effective in many fields such as communications. Renyi entropy and Chernoff inform…
Location-aware ICI Reduction in MIMO-OFDM Downlinks for High-speed Railway Communication Systems
Jiaxun Lu, Xuhong Chen, Shanyun Liu +1
High mobility may destroy the orthogonality of subcarriers in OFDM systems, resulting in inter- carrier interference (ICI), which may greatly reduce the service quantity of high-sp…
Message Importance Measure and Its Application to Minority Subset Detection in Big Data
Pingyi Fan, Yunquan Dong, Jiaxun Lu +1
Message importance measure (MIM) is an important index to describe the message importance in the scenario of big data. Similar to the Shannon Entropy and Renyi Entropy, MIM is requ…
Subcarrier grouping with environmental sensing for MIMO-OFDM systems over correlated double-selective fading channels
Jiaxun Lu, Zhengchuan Chen, Pingyi Fan +1
With the increase of physical antenna and subcarrier numbers in MIMO-OFDM systems, channel side information feedback amount and signal precoding complexity overburden will consume…