硬件损伤条件下的能量采集中继网络系统性能分析  

Performance analysis of energy harvesting communication network with hardware impairments

作　　者：李超[1] 郭道省[1] 郭克锋[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007

出　　处：《微型机与应用》2017年第18期59-62,共4页Microcomputer & Its Applications

摘　　要：能量采集技术在能量资源有限的背景下得到业界的广泛关注和研究,并已取得了丰硕成果。考虑到实际系统中硬件很难达到理想状况,会不可规避地存在各种损耗,从而对通信过程产生诸多影响,将这些影响统一等效为硬件自身的等效噪声,将其定义为硬件损伤。考虑了硬件损伤条件下的能量采集系统,两个时隙里,中继采用译码转发和功率分割的能量收集策略,并就中断概率作为分析指标,对于系统的整体传输性能进行了衡量并做了简要的分析。分析的准确性和可行性由Monte-Carlo仿真结果予以证实。Energy harvesting technique attracts a lot of attention with abundant of excellent works done already. For some further insights,we consider the condition that in the real wireless communication system,the hardware can not be easily assumed ideal,and the impairments do exist and can not be avoided by some engineering way. That makes a negative influence on the transmitting processing,which is non-ignorable.Thus,all the factors that have influence on the communication caused by the non-ideal hardware are summed up to be regarded as the equivalent noise themselves,defined as hardware impairments. The energy harvesting relay system under hardware impairments is investigated in this paper. In the consider of two-hop model,the decoding and forwarding（ DF） protocol and power splitting strategy is chosen in the relay node.To give a numerical analysis result,the outage probability is picked out to be the evaluation standard metric,with the closed-form expressions derived in this paper also. In addition,Monte-Carlo simulation results verifies the correctness of this paper.

关 键 词：中断概率 中继网络通信 能量采集 译码转发 硬件损伤 

分 类 号：TN925[电子电信—通信与信息系统]