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In cognitive radio networks, self-interested secondary users (SUs) desire to maximize their own throughput. They compete with each other for transmit time once the absence of primary users (PUs) is detected. To satisfy the requirement of PU protection, on the other hand, they have to form some coalitions and cooperate to conduct spectrum sensing. Such dilemma of SUs between competition and cooperation...
In view of the periodical tasks and emergent tasks transmitted in networked control systems, a bandwidth scheduling scheme with deterministic time-constraint is proposed. Based on task demands analysis, the limited network bandwidth is allocated to each transmission task properly by dividing time-window, setting priority of tasks and the initial transmission moment of each task. As a result, delay...
Since the infrastructures of the Cognitive radio network are more flexible than the conventional network, a novel network structure is required to adapt with such changes. Thus, we develop the joint design between the transport layer and MAC&PHY layer in overlay Cognitive Radio networks.The objective is to achieve the maximum throughput rationally, concerned with the constraint of interference...
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