This paper investigates the problem of robust stability of uncertain linear discrete-time system over network with bounded packet loss. A new Lyapunov functional is constructed. It can more fully utilize the characteristics of the packet loss; hence the established stability criterion is more effective to deal with the effect of packet loss on the stability. Numerical examples are given to illu...

We address the problem of video quality prediction and control for high resolution video transmitted over lossy packet networks. We analyze how the user-perceived quality is related to the average encoding bitrate for VBR MPEG2 video. We then show why simple distortion metrics (e.g., PSNR) may lead to inconsistent interpretations. Furthermore, for a given coder setup, we analyze the effect of p...

In this paper we propose an efficient discovery mechanism to select the best mobile gateway in wireless mesh networks (WMN’s). Our proposed scheme is based on mobile gateway learning mechanism, in which mobile gateways allow routers to discover them efficiently with minimal packet loss and packet delay. Simulation results have shown enhanced performance and throughput with minimal packet loss a...

control is less reliable than wired control due to packet loss, time delay, and packet disorder caused by wireless communication. A Bernoulli random process was used to model the possible packet loss. A modi ed LQG control with a disturbance observer (DOB) was proposed to control the cRSEA under packet loss [1]. Under the situation when future references can be previewed, the preview control te...

In this paper, a scalable variable-length packet switch using multistage interconnection network is proposed. The architecture consists of multiple non-buffer switch elements, interconnected with perfect shuffle pattern and with ring topology. Each input port is connected to a switch element in a different stage, and packets applied from these ports are routed to their destined output ports bas...

This paper is concerned with generalized predictive control based on state-space model for networked control systems. Both the network-induced time delay and packet loss are taken into account. The networked predictive controller design is discussed with respect to three network cases, which are related to packet loss, network-induced delay, and both packet loss and network-induced delay, respe...

The problem of determining asymptotic bounds on the capacity of a random ad hoc network is considered. Previous approaches assumed a threshold-based link layer model in which a packet transmission is successful if the SINR at the receiver is greater than a fixed threshold. In reality, the mapping from SINR to packet success probability is continuous. Hence, over each hop, for every finite SINR,...

The sending rate of commonly used TCP protocols is tightly coupled to packet loss within the network: a high rate of packet loss will cause a sender to slow down, thereby reducing the network load and decreasing subsequent packet loss rates. In this paper, we combine a widely verified source rate TCP model with an Optical Burst Switching (OBS) loss model, to find fixed-point input loads and los...

In this paper, we propose a new packet loss control mechanism – Dynamic Partial Buffer Sharing scheme. With DPBS scheme, the thresholds are dynamically adjusted in run-time based on packet loss behavior. So that DPBS scheme avoids parameter-setting problem, and it can achieve desired relative packet loss ratio easily. In addition, DPBS scheme can achieve higher buffer utilization for its adapta...

This paper analyzes the probabilities of data packet loss for both an encrypted channel in self-synchronous cipher feedback mode and a nonencrypted channel, in the space data systems. Simulation results show reasonable agreement with analytical results. When channel bit error probability is lo-' and the total number of packets per frame is 3, the analytical model gives 0.39% packet loss while t...