Multicast data delivery carries distinct importance in mobile wireless environments, where bandwidth is limited and transmission channels are shared between users. The development of mobile multicast protocols consequently exhibits emerging interest. As the common approach of Any Source Multicast distribution is burdened with intricate routing procedures, the spread of multicast–enabled network...

The needs to provide medical services in remote areas have motivated researchers to develop telemedicine systems. In most cases, it is very likely that very remote areas and disaster struck areas lack telecommunication infrastructure. Telemedicine system operating in such areas must have advanced wireless technology supporting it. Our approach is on MANET combined with Mobile IP and MIPV6, is t...

Text-to-speech technology has been broadly used to help people with voice disabilities to overcome their difficulties. With text-to-speech, a person types at a keyboard, the text is synthesized, and the sound comes out through the computer speakers. In recent years, Voice over IP (VoIP) applications have become very popular and have been used by people worldwide. These applications allow people...

Video call capabilities in 3G mobile handsets and higher data rate in HSPA networks are fuelling resurgence in video telephony. This enables the delivery of exciting video applications to subscribers. The addition of Interactive Voice and Video Response (IVVR) opens up a wide stream of interactive video applications. In this paper we present a comparative study on the encoding tools and the tec...

A novel mobile peer-to-peer (MP2P) in cellular networks is presented in this paper. The proposed architecture is based on Session Initiation Protocol (SIP) that is part of the IP Multimedia Subsystem (IMS) in the third-generation mobile cellular networks. In this architecture, P2P control messages are transported in SIP messages, so called P2PoverSIP. By way of SIP, the operators can have contr...

Multimedia and video streaming applications are becoming more popular and used by most of the users because of advances in mobile devices and mobile wireless networks. Maintaining continuity of video stream in mobility, handover protocol plays a pivotal role. The important task of handover process is handover prediction and decision. This paper presents a novel approach by considering a traditi...

Paging is an important mechanism for network bandwidth efficiency and mobile terminal battery life. It has been widely adopted by mobile networks, such as cellular networks, WiMax, and Mobile IP. Due to certain mechanisms for achieving paging efficiency and the convergence of wireless voice and data networks, the paging channel is vulnerable to inexpensive DoS attacks. To mitigate these attacks...