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This paper focuses on the unslotted cognitive radio networks in which the secondary users (SUs) are not synchronized with the primary users (PUs). The SUs can opportunistically utilize the wireless channel as long as the channel is not occupied by the PUs. Due to the half-duplex nature of the wireless medium, the SUs may inevitably impose interference to the PUs because the SUs cannot precisely predict...
Effective capacity is an effective technique in devising and evaluating the capability of a time-varying wireless channel to support data transmissions with diverse statistical quality of service (QoS) guarantees. In this paper, we propose an efficient framework to optimize and analyze the effective capacity for mobile multicast over broadcast fading . Our analyses identify the fundamental tradeoffs...
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