With exponential growth of mobile subscribers , mobile data traffic has been projected to experience, with increasing demand for the bandwidth. To support the rate of growth there will be need for the device & standard capable of providing next generation mobile network that require high data rate to obtain video streaming, live gaming, voice over Wi-Fi ,database search, file transfer & other f...

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...

Adaptive bit and power loading schemes in broadband Multiple-Input Multiple-Output (MIMO) systems are generally aiming to maximize the overall system throughput. However, in delay-critical applications such as voice or video streaming, a fixed data rate is crucial. Therefor in this contribution, bit and power allocation schemes in broadband MIMO systems for fixed rate applications are developed...

In this paper, we introduce our mobile QoS testbed “MOBIQ”, which is designed for mobile multimedia services including VoIP (Voice over IP) and audio/video streaming. The key components on this are 1) multiple-reference compression of RTP/UDP/IP headers for efficient media packet delivery on radio links, 2) layer2 combined queueing, which integrates wireless layer2 functionality into an IP-laye...

Wireless Local Area Network (WLAN) is the current technology which provides services with high bandwidth and low latency. It is one of the reasons for which it is preferred over several other wireless data networks. However, there are a few problems associated with it. Handoff is one such problem. Handoff process takes place when a mobile terminal moves from one access point to another. Existin...

Within the EMBRACE project an advanced communications system and network was developed. It uses the DVB technology for the high-speed downlink and a novel multi-frequency TDMA system for the return link. The return link is scaleable to accommodate the variety of data rates. Emphasis was put on providing quality of service (QoS) in wireless IP networks. Site diversity is used to increase the ava...

Multimedia applications are becoming increasingly popular in IP networks, while in mobile networks the limited bandwidth and the higher error rate arise in spite of its popularity. These are restraining factors for mobile clients using multimedia applications such as voice over IP (VoIP) or video streaming. In some conditions the retransmission of lost and corrupted packets should increase the ...

The use of mobile devices capable of wireless communications such as mobile phones, PDAs, and laptops in disaster recovery has been an important research topic for several years. However, while the majority of previous research has focused on voice and data communications a small number of researchers have proposed the use of multimedia content in aiding with patient diagnosis. Disaster recover...

The deployment of the higher data rate wireless infrastructure systems and the emerging convergence of voice, video, and data services have been driving various modern multimedia applications, such as video streaming and mobile TV. However, the greatest challenge for video transmission over an uplink multiaccess wireless channel is the limited channel bandwidth and battery energy of a mobile de...

This paper presents a new multi-core architecture for in-car digital entertainment. Target functions vary from terrestrial reception, digital reception, and compressed audio, up to handsfree voice with acoustic echo cancellation and USB media playback, possibly in different user modes like single versus dual media sound. In the near future, new functions like near field communication, wireless ...