It is common today to have H.323 and SIP videoconferencing equipment deployed behind firewalls/NATs in campus and enterprise networks. A major challenge faced by network planners is to configure firewalls and gatekeeper proxies to allow voice-and-video traffic in-and-out of the internal-network’s ports while limiting malicious access of internal-network data by intruders through the same open p...

Automatic human Activity Recognition (AR) is an important process for the provision of context-aware services in smart spaces such as voice-controlled smart homes. In this paper, we present an on-line Activities of Daily Living (ADL) recognition method for automatic identification within homes in which multiple sensors, actuators and automation equipment coexist, including audio sensors. Three ...

Voice over IP (VoIP) and Internet Multimedia Subsystem (IMS) technologies are rapidly being adopted by consumers, enterprises, governments and militaries. These technologies offer higher flexibility and more features than traditional telephony (PSTN) infrastructures, as well as the potential for lower cost through equipment consolidation and, for the consumer market, new business models. Howeve...

Biometrics systems are automated systems that recognize a person based on physical or behavioral characteristics. There are a number of primary biometric disciplines including fingerprint, facial recognition, voice recognition, iris scan, and retina scan. A multimodal biometric system refers to a combination of the above physiological and behavioral human characteristics. There are many crucial...

Development of radio-frequency communications equipment for wireless indoor networks is an active field. A thorough understanding of the channel characteristics is needed to develop reliable system design guidelines and installation techniques for future indoor wirel~ss systems. These systems will be used for reconfigurable voice, data, and video networks that link portable computers, vision sy...

Femtocells are a promising technology that benefits both mobile user and operators by providing economical voice and high speed data service particularly at indoor. Femtocells overlaid on existing macrocell forms a two-tier network and it may be considered as a heterogeneous network. Close access mode working of Femtocell Access Points (FAPs) and sharing radio resource allocation between existi...

Device to device communication systems will be able to handle voice and data services in an efficient manner. To provide efficient transmission, power control mechanisms play a very important role in LTE-A networks. For D2D communication, D2D discovery signals and cellular signals are multiplexed. This multiplexing is responsible for In-band Emission Interference (IEI). In-band Emission Interfe...

In the recent year the trend towards automated analysis of pathological noise signal has gain momentum. The awkwardness of analog equipment has simulated development of digital computer techniques for processing and analysis of pathological speech signal in patient care system. The above filter design techniques & prepossessing of speech signal can be used in any speech processing application. ...

Airport traffic consists of aircraft performing landing, takeoff and taxi procedures. It is controlled by air traffic controller (ATC). To safely perform this task he/she uses traffic surveillance equipment and voice communication systems to issue control clearances. One of the most important indicators of this process efficiency is practical airport capacity, which refers to the number of airc...

A person sleeps a third of his or her life, which means that a person sleeps seven or eight hours a day. However, many people suffer from disturbed sleep. In this paper, we try to segment a video into shots using the method of Bhattacharyya Distance. After analyzing these segmented shots, we decide a movement during sleep. We also try to record all the breath from the beginning of the sleep to ...