We have evaluated the information theoretical performance of variable rate adaptive channel coding for Rayleigh fading channels. The channel states are detected at the receiver and fed back to the transmitter by means of a noiseless feedback link. Based on the channel state informations, the transmitter can adjust the channel coding scheme accordingly. Coherent channel and arbitrary channel sym...

The paper is devoted to the analysis of problems appearing in optimisation and improvement of the powerbandwidth efficiency of digital communication feedback systems (FCS). There is shown that unlike digital systems, adaptive FCS with the analogue forward transmission allow full optimisation and derivation of optimal transmission-reception algorithm approaching their efficiency to the Shannon b...

High bandwidth sensor feedback is necessary for pegorming precise manipulation tasks within imprecisely calibrated and dynamically varying environments. Force controlled manipulation is a common technique for compliantly contacting and manipulating uncertain environments. visual servoing is an eflective technique for guiding imprecisely calibrated manipulators with imprecisely calibrated camera...

In this bachelors thesis I discussed how to use a fast feedback mechanism, implemented on an FPGA, to increase the coherence time of the resonant exchange only qubit. Using the fundamentals of the theory of feedback, I showed how a PID feedback controller could be implemented digitally using C on an FPGA and the limiting factors associated with the controller. Specifically it was found that the...

Bandwidth labelling is a well known research area in graph theory. We provide a new proof that the bandwidth of Mobius ladder is 4, if it is not a $K_{4}$, and investigate the bandwidth of a wider class of Mobius graphs of even strips.

Design and simulation of 7 GHz CMOS wideband amplifier(CMOSWA) using a modified cascode circuit realized in 90-nm technology is presented here. The proposed system consists two stages, namely folded an inductively degenerated common source amplifier. experimented with without feedback network. This work discusses the performance variation as function reactive components, initial stage results 2...

Chip Multiprocessors (CMPs) have become the architecture of choice for highperformance general-purpose processors. CMPs often share memory system units between processes. This may result in independent processes competing for memory bandwidth. Such competition can cause destructive interference which reduces performance predictability, decreases operating system scheduler efficiency and complic...

We take an algorithmic approach to a well-known communication channel problem and develop several algorithms for solving it. Specifically, we develop power control algorithms for sensor networks with collaborative relaying under bandwidth constraints, via quantization of finite rate (bandwidth limited) feedback channels. We first consider the power allocation problem under collaborative relayin...

The conventional A current feedback driver with double zeros compensation is proposed for medium to large AMOLED displays. The zeros for lead compensation are implemented with switched-capacitor circuits to reduce chip area. The selection rules for compensation Capacitors and zero capacitors are described to obtain wide bandwidth and high speed. The proposed driver has a settling time of 7us fo...

In this paper, we provide an online monitor and control approach for adaptive bandwidth allocations in a QoS-aware multimedia network system. Accurate management of bandwidth allocations with a goal of maximizing the revenues is quite complex, due to the interactions among various data flows that dynamically share the network bandwidth. So, we adopt a heuristics-aided control that iteratively a...