摘要

The energy efficiency of the IEEE 802.16e sleep mode mechanism was studied. The analysis of the energy efficiency and data package delay was made by the use of a Markov chain model in sleep mode with time threshold. Then a heuristic time threshold setting algorithm was presented to adapt network real time traffic load. NS2 simulation results show that this proposed algorithm can achieve higher efficiency in power consumption and less data package delay in the comparison with the traditional sleep mechanism.

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