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Next generation of wireless broadband network such as WiMAX MMR networks and LTE Advanced support high quality multimedia services with high data transmission rate. Most of the current broadband operates at high frequency and thus has limited transmission range. Multi-hop relaying technology is seen as an efficient solution that could enhance coverage and improves system capacity. However, overall...
Due to significant popularity of Location-based Services and Multimedia communication over mobile devices, there are many researches has been conducted to extend the features of location tracking and make it cost-effective to users. It becomes necessary for the users to have seamless communication with automated switching of software applications. This paper focuses on the performance of indoor location...
The development of mobile computing and Wireless Local Area Networks (WLANs) has grown rapidly, nowadays. There are several approaches and practically work has been done on tracking mobile nodes and transmitting multimedia data among the network using wireless technology. Several applications and methods are being used to maintain the accuracy of tracking distance for the mobile nodes and broadcasting...
Cross layer design is considered as an attractive strategy to enable multimedia transmission over cognitive ultra wide band (C-UWB) system experiencing time-varying channel conditions and traffic characteristics. The close dependency among various parameters across protocol stacks need to be addressed to determine the optimum cross layer approach. Hence, this paper highlights a MAC centric cross layer...
Limited available spectrum and the inefficiency in the spectrum usage necessitate the use of cognitive radio (CR) approach to exploit the existing wireless spectrum opportunistically. To achieve the goal of CR, it is a fundamental requirement that the cognitive user (CU) performs spectrum sensing to detect the presence of the primary user (PU) signal before a spectrum is accessed to avoid interference...
Enabling video transmission to be maintained at an acceptable level under unreliable and time-varying wireless channels in a non-trivial challenge. The main challenge in enabling video transmission over UWB WPAN lies on how to meet the QoS requirements (ie: delay, jitter, PSNR) under time-varying spectral resources, video frame dependencies, limited power and data rate and tight delay constraint....
Over the past few decades, unprecedented growth in wireless communications, networking and video-coding technologies have stimulate numerous applications such as video on demand and interactive video telephony. Ultrawideband technology (UWB) which offers high data rate with low transmit power, becomes a very promising wireless platform for video transmission. Recently, cognitive radio (CR) technology...
Wireless multimedia technology has witnessed a rapid development in recent years due to explosive growth in communication, commerce and entertainment services. Undoubtedly, future wireless communication systems will eventually integrated a broad range of multimedia services such as voice, video, and data. This will have a profound impact on the way individuals communicate and access information. It...
We present our work on modeling multimedia traffic over an Internet Protocol - Generalised Multiprotocol Label Switching (IP-GMPLS) network for admission control using the network simulator ns-2. GMPLS networks are potential solutions to an all optical internet environment. To generate GMPLS network scenarios the MPLS components in the ns-2 was utilized. The multimedia traffic comprised of real time...
There has been an alarming increase in demand for multimedia applications due to explosive growth in communication, commerce and entertainment services. Nowadays devices such PDA, laptops and phone have more processing and computing capability. Consequently, this will eventually allow more effective and efficient video streaming and mobile applications over wireless network. Perhaps the development...
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