Adaptive Cross Layer Approach for Video Transmission Over Cognitive UWB Network

The demand of Quality of Service (QoS) for multimedia transmission over wireless network raises huge challenges such as time-varying channel conditions, limited resources, tight delay constraints, high bandwidth demand and complex protocol design. Therefore, there is need to efficiently utilize and manage the interactions among different layers of the protocol stack using Cross Layer Design (CLD) approach in order to provide necessary support for video applications. This paper presents the authors' proposed strategies for adaptive video transmission over Cognitive Ultra WideBand (C-UWB) network using MAC centric CLD approach. Generally, the proposed MAC centric CLD framework consists of sensing module, adaptive resource allocation module and adaptive quantization scale module.

Provided by: IARIA Topic: Mobility Date Added: Jul 2011 Format: PDF

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