With fast deployment of wireless local area networks (WLANs), the ability of WLAN to support real time services with stringent quality of service (QoS) requirements is attracting ever-increasing research interest. In this paper, we evaluate the capability of the point coordination function (PCF), which is part of the medium access control (MAC) mechanisms specified in the IEEE 802.11 standard f...

FGS (Fine Granularity Scalability) is a scalable coding technique which can provide flexibility and good performance for Internet video streaming. However, FGS is not suitable for wireless video streaming. This is mainly because the low coding efficiency of FGS does not fit the limited bandwidth of wireless networks. In this paper, we jointly consider mode selection and UEP (unequal error prote...

BACKGROUND Various modes of mechanical ventilation have different effects on respiratory variables. Lack of patients' neuro-ventilatory coordination and increasing the work of breathing are major disadvantages in mechanically ventilated patients. OBJECTIVES This study is conducted to compare the respiratory parameters differences in Adaptive support ventilation (ASV) and synchronized intermit...

A new high frequency CMOS current-mode receiver front-end composed of a current-mode low noise amplifier (LNA) and a current-mode down-conversion mixer has been proposed in the frequency band of 24 GHz and fabricated in 0.13-lm 1P8M CMOS technology. The measurement of the current-mode receiver front-end exhibits a conversion gain of 11.3 dB, a noise figure (NF) of 14.2 dB, the input-referred 1-...