Decentralized Transmission Strategy for Delay-sensitive Applications over Spectrum Agile Network

With the growing demand of radio resources, maximizing spectrum efficiency becomes increasingly important. Traditional static spectrum allocation lacks the mechanisms for sharing the spectral resources between different allocated bands. Hence, spectrum agility which allows the radio devices to dynamically use the idle spectral band is attracting more and more attention. In this paper, we show how spectrum agility can be used to satisfy delay sensitive applications over wireless networks. We show that the performance of networks using spectrum agility presents significant improvements over existing network. By utilizing a decentralized, non-cooperative channel searching and switching strategy, different users with various throughput requirements can share the available channel resources in an efficient way to satisfy their own packet loss and delay constraints.