Wireless 2D cameras are becoming more widely used for
applications such as video surveillance and conferencing due to their easy
deployment. These scenarios require multiple high quality video streams that
share limited wireless channel resource. Therefore, a bandwidth management that
is sensitive to application QoS requirements, content extraction and the
specifics of a camera array environment is essential. This paper addresses the
problem of bandwidth management to coordinate multiple video flows and to
support streaming from wireless camera array. We present a bandwidth management
framework that deploys a coordination scheme between the camera array and system
resources. Especially, the framework explores different relations and scheduling
policies between cameras and the bandwidth allocation to achieve better
multi-view video delivery. The implementation uses Linux platform and IEEE
802.11b wireless ad hoc network. Our experimental results show that the
bandwidth management framework helps achieving streaming differentiation while
maintaining high quality video delivery.
