We consider the stochastic behavior of dropping time of a decoder withM frame buffers. It can be formulated as the following stochastic problem. Suppose X1, X2, . . . , are independent and identically distributed random variables. Suppose W0 and Wi = max{Wi−1 + Xi, 0}, i = 1, 2, . . . . For a fixed positive threshold Γ, the dropping time D is defined as D = min{n,Wn ≥ Γ}. Our main result is to ...

We explore the advantages of intelligently dropping a small fraction of packets that arrive for transmission over a time varying wireless downlink. Without packet dropping, the optimal energy-delay tradeoff conforms to a square root tradeoff law, as shown by Berry and Gallager (2002). We show that intelligently dropping any non-zero fraction of the input rate dramatically changes this relation ...

In stateless core (SCORE) networks, edge routers maintain per flow state while core routers do not. Core stateless fair queuing (CSFQ) has been proposed for approximating the operation of per-flow queuing techniques in SCORE networks. However, the packet dropping probability offered by CSFQ suits only UDP flows. Thus, CSFQ cannot achieve fair bandwidth allocation for TCP flows. This paper propo...

In this paper, we present an analytical model to study the soft handoff coverage by evaluating the new call blocking and the handoff call dropping probabilities in a cellular CDMA system. By assuming that the new call generation rate per unit area is uniformly distributed over the service area, enlarging the soft handoff region may increase both the blocking and the dropping probabilities. On t...

This study assessed the nature of the perceived exertion response to treadmill running in 14 healthy 7-8 year-old children, using the Eston-Parfitt (E-P) Ratings of Perceived Exertion (RPE) scale and a marble dropping task. For the E-P scale and the marble dropping task, the relationships between the RPE and work rate were best described as linear (R2 = .96) and curvilinear (R2 = .94), respecti...

This paper presents a fuzzy based buffer management scheme that performs buffer allocation and packet dropping for wireless multimedia networks in the context of future generation cellular networks. In this scheme, buffers are allocated to requesting application by using buffer allocation factor and packets are dropped for an application by using dropping factor. A buffer allocation factor for ...

The most outstanding event in the Spanish education system in the past two decades has been the overall improvement of enrolment in all educational levels. However, the primary school dropout rate in Spain is relatively high, and the evidence indicates that being a dropout is a permanent condition. This is the first study on dropouts in Spain, and it uses individual-level data from the Living a...

We propose a Rate-Distortion (RD) optimized strategy for frame-dropping and scheduling of multi-user conversational and streaming videos. We consider a scenario where conversational and streaming videos share the forwarding resources at a network node. Two buffers are setup on the node to temporarily store the packets for these two types of video applications. For streaming video, a big buffer ...

In this report we summarize our work on real time transcoding implementation combining frame dropping (FD) and DCT coefficient dropping (CD). FD can realize the temporal down sampling resulting in a low frame rate video stream, while CD is implemented by truncating the high frequency AC DCT coefficient bits. The video quality is optimized by adopting the Lagrange optimization. We also specify t...

In stateless core (SCORE) networks, edge routers maintain per-flow state while core routers do not. Core stateless fair queuing (CSFQ) has been proposed for approximating the operation of per-flow queuing techniques in SCORE networks. However, the packet dropping probability offered by CSFQ suits only UDP flows. Thus, CSFQ cannot achieve fair bandwidth allocation for TCP flows. This paper propo...