By Yan Zhang, Shiwen Mao, Laurence T. Yang, Thomas M Chen
Multimedia carrier provisioning is assumed to be one of many necessities to assure the good fortune of next-generation instant networks. studying the position of multimedia in state of the art instant platforms and networks, Broadband cellular Multimedia: options and purposes provides a suite of introductory suggestions, primary innovations, the newest advances, and open concerns during this vital quarter.
Divided into 4 sections, the quantity starts off with an creation to varied broadband instant multimedia structures. utilizing video as an program instance, it then specializes in the routing and cross-layer layout factor of multimedia conversation over multihop instant advert hoc and sensor networks. the following part discusses concerns on the topic of multimedia communications over WLANs—a dominant a part of today’s broadband instant entry networks. The ebook concludes with fresh advancements in quality-of-service (QoS) provisioning mechanisms and different permitting applied sciences, together with middleware, mobility administration, scheduling, and gear keep watch over.
With various illustrative figures and large references, this helpful technical advisor offers in-depth remedies of simple themes, an effective evaluation of state of the art advances, and a consultant sampling of vital examine results.
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Additional info for Broadband Mobile Multimedia: Techniques and Applications (Wireless Networks and Mobile Communications)
Regulating streaming through multiple TCP connections. The availability of multiple paths between the source and sink can be exploited by opening multiple TCP connections for multimedia traffic . Here, the desired streaming rate and the allowed throughput reduction in presence of bursty data, such as video, is communicated to the receiver by the sender. This information is used by the receiver, which then measures the actual throughput and controls the rate within the allowed bounds by using multiple TCP connections and dynamically changing its TCP window size for each connection.
Scalable. There is an inherent trade-off between degrees of flexibility and network performance. Platform independence is usually achieved through layers of abstraction, which usually introduces redundancy and prevents the developer from accessing low-level details and functionalities. However, WMSNs are characterized by the contrasting objectives of optimizing the use of the scarce network resources and not compromising on performance. The principal design objective of existing operating systems for sensor networks such as TinyOS is high performance.
However, transmit power control results in significant savings in energy consumption at the cost of increased latency. There is also a need to integrate source and channel coding schemes in existing cross-layer optimization frameworks. The existing schemes mostly consider point-to-point wireless links, and neglect interference from neighboring devices and multihop routes. 4 Cross-Layer Protocols Although a consistent amount of recent papers have focused on cross-layer design and improvement of protocols for WSNs, a systematic methodology to accurately model and leverage cross-layer interactions is still largely missing.