We address the trade-offs among delay, loss, and bandwidth in the design of coupled-resonator optical waveguide (CROW) delay lines. We begin by showing the convergence of the transfer matrix, tight-binding, and time domain formalisms in the theoretical analysis of CROWs. From the analytical formalisms we obtain simple, analytical expressions for the achievable delay, loss, bandwidth, and a figu...

There exist some studies in Proportional Scheduling Algorithms for Differentiated Service Network which schedules the packets between different classes proportionally based on some metrics as bandwidth, loss, delay. In this paper, the behaviors of RJPS (Relative Jitter Packet Scheduler) and another proportional delay scheduler (WTP), as well as its influence at the Playout Buffer which uses Con...

We consider a single server queueing system with two types of traffic where traffic of type 1 (such as data) are delay-insensitive and loss-sensitive and traffic of type 2 (such as voice) are delay-sensitive and loss-insensitive. To provide the required Quality of Service (QoS) of each type of traffic, we adopt the strict priority scheme for delay and push-out scheme with threshold for loss. Th...

Active Queue Management (AQM) plays an important role in the Internet congestion control. It tries to enhance congestion control, and to achieve tradeoff between bottleneck utilization and delay. Random Early Detection (RED) is the most popular active queue management algorithm that has been implemented in the in Internet routers and is trying to supply low delay and low packet loss. RED al...

Schedule delays commonly occur in construction projects and often result in delay and low productivity. Several studies have proposed different schedule delay analysis methodologies. By using asplanned and as-built schedules most studies have concentrated on calculating and identifying the delay events on project but have neglected the low productivity. Loss in productivity, which is a primary ...

The effects of different combinations of antenna patterns and polarizations on path loss and rms delay spread in indoor obstructed channels at 2.45 G Hz are treated in this paper. Based on measurement results, and assuming the main beams of the antennas are lined up on boresight, it appears that using vertically polanzed (VPJ antennas at both the transmitter and the receiver can provide smaller...

Perceived voice quality is mainly affected by IP network impairments such as delay, jitter and packet loss. Adaptive smoothing buffer at the receiving end can compensate for the effects of jitter based on a tradeoff between delay and loss to archive a best voice quality. This work formulates an online loss model which incorporates buffer sizes and applies the ITU-T E-model approach to optimize ...

In distributed applications, a group of multiple processes cooperate by exchanging multimedia messages. It is critical to support the group of application processes with enough quality of service (QoS) in addition to the ordered delivery of messages. The delay time and the message loss ratio are signi cant QoS parameters. In the Internet application, the delay time and the loss ratio are signi ...

| In distributed applications, a group of multiple processes cooperate by exchanging multimedia messages. It is critical to support the group of application processes with enough quality of service (QoS) in addition to the ordered delivery of messages. The delay time and the message loss ratio are signi cant QoS parameters. In the Internet application, the delay time and the loss ratio are sign...

Many call admission control schemes for ATM-type networks focus on the cell loss rate as the exclusive QoS metric and therefore base their Eb (EEective bandwidth) schemes on cell-loss rate approximations. We use simulation data to train an adaptive logic network (ALN) to estimate cell loss and delay; these estimates can then be used to compute eeective bandwidths to satisfy both cell loss and d...