论文标题
在MEC网络中延迟最小化混合BAC-NOMA卸载
Delay Minimization for Hybrid BAC-NOMA Offloading in MEC Networks
论文作者
论文摘要
本文研究了基于反向散射通信（BackCom）辅助非正交多访问（BAC-NOMA）的多访问边缘计算（MEC）的卸载服务改进。提出了一种混合BAC-NOMA协议，在该协议中，上行链路用户通过利用下行链路信号来对其任务进行反向散射，然后通过uplink noma传输其余数据。特别是，提出了资源分配问题，以最大程度地减少上行链路用户的卸载延迟。非凸问题转化为凸问题，并相应地开发了迭代算法。仿真结果表明，所提出的协议在卸载延迟方面优于基准。
This paper studies the offloading service improvement of multi-access edge computing (MEC) based on backscatter communication (BackCom) assisted non-orthogonal multiple access (BAC-NOMA). A hybrid BAC-NOMA protocol is proposed, where the uplink users backscatter their tasks by leveraging the downlink signal, and then the remaining data is transmitted through uplink NOMA. In particular, a resource allocation problem is formulated to minimize the offloading delay of uplink users. The non-convex problem is transformed into a convex problem, and an iterative algorithm is developed accordingly. Simulation results show that the proposed protocol outperforms the benchmark in terms of offloading delay.
