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This paper considers a multiuser system with one full-duplex (FD) base station (BS) serving a set of half duplex (HD) mobile users. Due to the self-interference and co-channel interference from the uplink users to the downlink users, the transmissions of the BS and uplink users have to jointly designed. In this paper, we consider such a joint design problem for maximizing the max-min-fairness (MMF)...
In this paper, we consider a wireless network with one full-duplex (FD) base station (BS) and a set of half-duplex (HD) user equipments (UEs). In such scenario, in addition to the self-interference, the co-channel interference from uplink UEs to downlink UEs is the main bottleneck for the network performance. To overcome this, we consider the problem of maximizing the minimum fairness rate among all...
Next generation mobile network is characterized by ubiquitous access. It is therefore challenging to address the convergence of heterogeneous network and performance of handover. In this paper, a novel vertical handover framework is proposed for optimizing mobile handover signaling. This framework is based on the cooperation of Media Independent Handover (MIH) and Software-Defined Networking (SDN),...
In practical implementations of single-antenna full-duplex (FD) radios, the imperfect isolation between the transmit (TX) and receive (RX) ports of the circulator causes the leakage of a strong self-interference (SI) component. This issue reduces both the spectral and energy efficiency of the device. State-of-the-art SI cancellation (SIC) solutions mitigate this problem, however they also constrain...
In practical implementations of single-antenna full-duplex (FD) radios, the imperfect isolation between the transmit (TX) and receive (RX) ports of the circulator causes the leakage of a strong self-interference (SI) component. This issue reduces both the spectral and energy efficiency of the device. State-of-the-art SI cancellation (SIC) solutions mitigate this problem, however they also constrain...
Performance of in-band full-duplex (FD) radios is typically hindered by practical hardware limitations of the circulator, whose signal leakage may cause the presence of very large self-interference (SI) in the receiver (RX) chain. This causes both spectral and energy efficiency reduction for the FD radio. In this work, a novel energy-recycling single-antenna FD architecture, in which an energy harvester...
The control algorithm affects the quality of the control system directly, even determines the success or failure of the whole system. When a control system can use a variety of control algorithms, but it is difficult to assess the merits according to precision indicator and time indicator, it needs a new evaluation indicator. This paper puts forward a control accuracy indicator to represent the situation...
We discuss titanium dioxide material development for CMOS compatible fabrication and integration of athermal silicon photonic components. Titanium dioxide overclad ring modulators achieved athermal operation (< 0.2 GHz/°C).
A supplemental side air-injection (SAI) system for obtaining stratified lean-burn in a non-road small spark-ignition (SI) engine was put forward and the comparative performance was experimentally investigated. A SAI port is bored through one side of the engine cylinder wall and connected with an induction channel through a solenoid valve. In the periods of intake and detonation strokes, compressed...
We demonstrate a 4λx12.5Gbps Silicon Photonics CWDM link integrating all optical components, electronics, and packaging technologies required to form the link.
Layer-encoded multimedia multicasting (LMM) has emerged in recent years to support heterogeneous subscriber stations with diverse computing and networking capabilities. With the advance of broadband wireless access technologies, wireless relay networks (WRNs) are expected to provide significant improvement on throughput and extension of coverage for next-generation wireless systems. In this paper,...
Power delivery system noise, current and impedance are the key performance factors for successful chipsets/CPUs design. Power delivery noise is significantly affected by on-die impedance and current, i.e., on-die power grid equivalent resistance (Rdie), capacitance (Cdie), and Icc(t). Rdie and Cdie have been challenging in pre-silicon extraction and post-silicon measurement. This paper focuses on...
In this paper an analytic model for Ge/Si core/shell nanowire MOSFETs (NWFETs) is developed. First, the electrostatic potential and charge model are derived out from classical device physics. Then the drift-diffusion drain current model is obtained and verified by comparisons with the numerical simulation. The ballistic current model is obtained with the approximately described quantum-mechanical...
This paper presents a charge-based compact model for the arbitrary doped long-channel cylindrical surrounding-gate (SRG) MOSFETs. Starting from Poissonpsilas equation with fixed charge and inversion charge terms, an accurate equation of inversion charge is obtained with the full-depletion approximation. Substituting this inversion charge expression into Pao-Sahpsilas dual integral, a drain current...
An analytic surface potential based non-charge-sheet model for poly-silicon thin film transistors (poly-Si TFTs) is proposed in this paper with consideration of the substrate and film thickness effects. The 1-D Poissonpsilas equation with dopant, mobile, and the trap charge terms is first solved to obtain accurate yet continuous channel potentials physically. An analytic non-charge-sheet drain current...
A global continuous channel potential solution is proposed for the modeling of symmetric double-gate (DG) MOSFETs. To obtain the channel potential, from accumulation to inversion regions, 1-D Poissonpsilas equation in the silicon film of the DG MOSFETs is solved physically. The extensive comparisons between the calculated results and numerical simulations illustrate that the analytical solution is...
On-die capacitance is critical parameter in power delivery analysis and design, which impacts design cost and system performance. To improve modeling accuracy, correlation was studied for on-die capacitance among internal algorithm/tool, on-die PDA, Apachepsilas RedHawk and lab measurement. Internal tool, on-die PDA is a tool to automatically simulate on-die models including Cdie, Rdie and Icc(t)...
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