Dynamic traffic awareness in wireless multichannel data dissemination

Data dissemination by the use of periodic broadcast is an important scalable data delivery mechanism due to the explosion of wireless information services. Consider that the recent emergence of a multichannel data dissemination model has attracted much research attention. In this paper, we devise an on-line multichannel traffic awareness (MCTA) mechanism by exploiting the notion of client impatience against traffic dynamics in a multichannel data dissemination environment. The design of MCTA performs a cyclical estimation of dynamic access frequency distribution in response to dynamic traffic changes. The experimental results show that MCTA is not only able to attain an estimated distribution of high accuracy, but also of low complexity and robustness without performance degradation.