Abstract: Computation offloading is a technique to offload computation intensive applications executed on mobile terminals to remote servers. It is an effective way to expand the comprehensive processing capabilities of mobile terminals. However, for this promise to become a reality, it is necessary to find an approach to guide decision-making on computation offloading. Orienting to the LTE context, a computing offloading approach is presented in this paper, which can optimize both processing delay and energy efficiency. The approach first establishes the mobile terminal's computation offload model; then it constructs an offloading cost function based on analyzing the computation offloading parameters related; finally, it implements reasonable computation offloading by taking the processing delay and the energy consumption as constraints. An extensive numerical analysis reveals that the proposed approach achieves less processing delay and better energy efficiency simultaneously.

Key words: mobile terminal, computation offloading, processing delay, energy efficiency