Abstract
This study designed a data broadcasting method called evolved broadcast scheduling algorithm (eBSA) to further support LTE evolved multimedia broadcast/multicast services (e-MBMS). This eBSA provides new scheduling technology for e-MBMS and a new information searching method for user equipments that simultaneously conserves user equipment energy and maintains favorable access latency of broadcast messages. The eBSA constructs index and message channels based on the message popularities, using the index channel to guide user equipments to rapidly locate the position of the desired message in the message channel. Consequently, a short mean access time and mean turning time can be attained. The results of numerical analysis verify that when access messages possess skewed access characteristics, the proposed eBSA method performs exceptionally. Additionally, by adequately adjusting the parameter provided by the eBSA method, the optimal tradeoff between energy conservation and access latency performance can be attained.
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