We consider a user communicating over a fading channel with perfect channel state information. Data is assumed to arrive from some higher layer application and is stored in a buuer until it is transmitted. We study adapting the user's transmission rate and power based on the channel state information as well as the buuer occupancy; the objectives are to regulate both the long-term average trans...

A new technique is proposed for the objective estimate of cochlear tuning, starting from measurements of the delay function of Stimulus Frequency (SF) and Transiently Evoked (TE) Otoacoustic Emissions (OAEs). The technique is quick and reliable, also in not cooperating subjects, while the psychoacoustic tuning measurements are time consuming and based on a large number of assumptions. It is wel...

objective mental retardation (mr) or intellectual disability is one of three chronic and disabling neurological disorders of children and adolescents. its prevalence is estimated 1-3% of the population. mr is defined as significant sub-average intellectual functioning and adaptive behavior that become detectable before the age of 18. mr may come into view before 5 years as delay in at least two...

We propose and evaluate a new burst assembly algorithm based on the average delay of the packets comprising a burst. This method fixes the average delay of the packets belonging to an assembled burst to a desired value TAVE that may be different for each forwarding equivalence class (FEC). We show that the proposed method significantly improves the delay jitter experienced by the packets during...

We study an uplink multi secondary user (SU) cognitive radio system having average delay constraints as well as an instantaneous interference constraint to the primary user (PU). If the interference channels from the SUs to the PU have independent but not identically distributed fading coefficients, then the SUs will experience heterogeneous delay performances. This is because SUs causing low i...

Anycast routing is very useful for many applications such as resource discovery in Delay Tolerant Networks (DTNs). In this paper, we first analyze the anycast semantics for DTN based on a new DTN model. Then we present a novel metric named EMDDA (Expected Multi-Destination Delay for Anycast) and a corresponding routing algorithm for anycast routing in DTNs. Extensive simulation results show tha...

In this paper we develop a Markov chain modeling framework for throughput/delay analysis of data services over cellular voice networks, using dynamic channel stealing method. Some eeective approximation techniques are also proposed and veriied for simpliication of modeling analysis. Our study identiies the average voice call holding time as the dominant factor to aaect data delay performance. E...

A neoclassical growth model is examined with a special mound-shaped production function. Continuous time scales are assumed and a complete steady state and stability analysis is presented. Fixed delay is then assumed and it is shown how the asymptotic stability of the steady state is lost if the delay reaches a certain threshold, where Hopf bifurcation occurs. In the case of continuously distri...

This paper presents a new analytical model for calculation of the average packet delay of the IEEE 802.11 Distributed Coordination Function assuming ideal channel conditions. The new model applies to both basic and Request-to-Send / Clear-to-Send access modes and is based on calculating the average delay of packets successfully transmitted after a specific number of collisions and the correspon...