To realize cooperative computation and communication in a relay mobile edge computing system, we develop a hybrid relay forward protocol, where we seek to balance the execution delay and network energy consumption. The problem is formulated as a nondifferentible optimization problem which is nonconvex with highly coupled constraints. By exploiting the problem structure, we propose a lightweight algorithm based on inexact block coordinate descent method. Our results show that the proposed algorithm exhibits much faster convergence as compared with the popular concave-convex procedure based algorithm, while achieving good performance.
@article{arxiv.1710.11420,
title = {Joint Cooperative Computation and Interactive Communication for Relay-Assisted Mobile Edge Computing},
author = {Xihan Chen and Qingjiang Shi and Yunlong Cai and Minjian Zhao and Mingjie Zhao},
journal= {arXiv preprint arXiv:1710.11420},
year = {2017}
}