The University of Osaka · 공학
Jianhao Wang 교수의 연구실은 향후 6세대 이동통신(6G) 시스템을 위한 첨단 무선 통신 기술과 전자패키징 기술을 중심으로 연구를 진행하고 있습니다. 특히 밀리미터파 및 대량 다중안테나(Massive MIMO) 환경에서의 채널 추정, 통합 감지 및 통신(ISAC) 기반 자율주행 차량 인프라, 고신뢰성 전자소자 패키징 기술에 초점을 맞추고 있으며, 생체재료 및 항균 마이크로니들을 활용한 의료용 약물 전달 기술 등 다학제적 응용도 함께 연구하고 있습니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Channel estimation is a challenging issue for millimeter wave (mmWave) and massive multiple-input multiple-output (MIMO) in the future sixth generation (6G) wireless systems, where the conventional estimation schemes may fail to track the fast varying channels, especially in high-speed mobile scenarios. In this paper, a novel tensor-based uplink channel estimation scheme is proposed for multi-user MIMO (MU-MIMO) systems over time-varying channels. In the proposed scheme, a low-overhead pilot tra
Skin and soft tissue infections (SSTI) include bacterial infections of the skin, muscles, and connective tissue such as ligaments and tendons. SSTI in patients with immunocompromising diseases may lead to chronic, hard-to-heal infected wounds, resulting in disability, amputation, or even death. To treat SSTI and rebuild the defensive barrier of the skin, here we utilize recombinant type XVII collagen protein (rCol XVII) to construct biodegradable, regenerative collagen microneedles (rCol-MNs) fo
To meet the demand of cryogenic reliability on the electronic packaging for deep space satellite, the three-dimensional interfacial morphology and property of eutectic SnPb solder joint under an extreme thermal shocking of 77–423 K were investigated. After thermal shocking, Cu-Sn IMC layers coarsened in the cross-sectional observation and micro-cracks formed in Cu6Sn5 layer. The rough Cu6Sn5 layer in the top view gradually smoothed, with broken Cu6Sn5 particles and exposed Cu3Sn. In the bottom-v
Cosmic radiation has always been the most obvious barrier to planetary travels, especially in long-duration deep space exploration missions. Therefore, the reliability of satellite materials and the requirements of satellite miniaturization have received considerable attention. In this paper, the effect of γ-ray irradiation on the reliability of Sn50Pb49Sb1/Cu solder joints was investigated. It was found that the influence of γ-ray irradiation on the thickness and morphology of the intermetallic
Pavement damage detection is of great significance for traffic safety and pavement maintenance. Traditional detection methods require a lot of time and cost, and there are many problems in image detection. Therefore, an improved YOLOv5 pavement damage detection algorithm, GSC-YOLOv5, is proposed. First of all, to solve the problem that small cracks are similar to pavement and difficult to detect, we introduced the self-designed Spatial Pyramid Pooling module into the backbone network of the orig
As one of the promising technologies of the future 6G network, Integrated Sensing and Communication (ISAC) is able to provide tremendous benefits such as performance improvement and cost reduction through integrating the two systems as a whole. The use of ISAC technology will introduce new sensing abilities and enhance information processing capabilities at base stations, and makes the interaction between base stations and vehicles more frequent, which brings huge benefits to connected automated
