In this paper, it has been discussed and focused over the various frameworks on ad hoc networks. Since, it is not easy to follow all the aspects and issues over ad hoc networks followed by cross layer designing approaches. This paper discussed various frameworks supported by real-time multimedia, multi objective performance, multi-path transmission for Voice over Internet Protocol (VoIP) commun...

The introduction of third generation wireless systems provides the opportunity to develop a wide range of new mobile data services. Many of the proposed services (e.g. Voice over IP, streaming audio/video, and other multimedia) include data that require guarantees on throughput, delay, and probability of data loss. However, wireless links are inherently unreliable since the channel is subject t...

Following decades of research, the multimedia networks remain a great challenge; however, the modern multimedia wireless networks with video streaming and Internet Protocol voice, have been attracting special attention due to factors such as mobility and heterogeneity in the devices that are used, which can influence the quality of a user’s experience in a particular application or service. Thi...

With the rapid growth in popularity of wireless data services and the increasing demand for wireless connectivity, Wireless Local Area Networks (WLANs) have become more widespread and are making their way into commercial and public areas being almost everywhere including business, office and home deployments. WLANs based on the IEEE 802.11 standards enjoy an exceptionally high popularity owing ...

Cellular networks are evolving to an increasing number of applications ranging from simple voice calls to video streaming and data transfer. Recently, it has been suggested to extend theses networks to short range communications using device to device links. The aim of such type of operation is to alleviate the data traffic load on cellular networks, and also to provide an alternative option fo...

In this paper, we propose a web synchronization method (WSM) to share operation data on a browser and synchronize output time of data among browsers in browser-based communications such as video conferencing and remote control services. WSM continually provides users with an environment for smooth browser-based communications even if users are in a heterogeneous environment where network delay ...

IEEE 802.11 MAC protocol is a well-known method used in Wireless LANs (WLANs). However, it provides poor QoS guarantee for time sensitive traffic such as media streaming, or high priority traffic such as voice/video signaling requests. For improving the QoS guarantee of communications, call admission control (CAC) is important for access point’s (AP’s) point coordination function (PCF). In this...

IEEE 802.16e is a mobile version of Worldwide Interoperability for Microwave Access (WiMAX) that plays an important role in the evolution towards 4G. In this work, we focus on multimedia performance measurement for the purpose of a more realistic mobile WiMAX network test. Our work aims to make a contribution in better understanding the mobile WiMAX performance for multimedia applications. For ...

Although human perception appears to be automatic and unconscious, complex sensory mechanisms exist that form the preattentive component of understanding and lead to awareness. Considerable research has been carried out into these preattentive mechanisms and computational models have been developed for similar problems in the fields of computer vision and speech analysis. The focus here is to e...