Opportunistic Routing-Aided Cooperative Communication Network With Energy Harvesting
Opportunistic Routing-Aided Cooperative Communication Network With Energy Harvesting
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DOI：
10.1109/jiot.2022.3227214
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发表时间：
2022-05
影响因子：
10.6
通讯作者：
Wannian An;Chen Dong;Xiaodong Xu;Chao Xu;Shujun Han;Lei Teng
中科院分区：
文献类型：
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作者：
Wannian An;Chen Dong;Xiaodong Xu;Chao Xu;Shujun Han;Lei Teng
本文研究了一种基于能量采集(EH)译码转发(DF)的协作通信网络，该网络利用采集-存储-使用(HSU)结构的缓冲器从环境中获取能量。提出了一种机会路由(OR)协议，该协议根据节点的传输优先级来选择分组的传输路径，以改善该网络中的数据传输。此外，还提出了一种基于状态转移矩阵(STM)的算法来获得候选广播节点集的概率分布。基于概率分布，利用离散连续状态空间马尔可夫链(DCSMC)模型，给出了能量缓冲器中能量极限分布的存在条件和理论表达式。此外，借助缓冲区中存储的能量的极限分布，得到了网络中断概率和吞吐量的闭合形式的表达式。为了验证所推导出的协作通信网络性能的理论表达式，已经进行了大量的实验。
In this article, a cooperative communication network based on energy-harvesting (EH) decode-and-forward (DF) relays that harvest energy from the ambience using buffers with the harvest-store-use (HSU) architecture is considered. An opportunistic routing (OR) protocol, which selects the transmission path of packet based on the node transmission priority, is proposed to improve data delivery in this network. Additionally, an algorithm based on the state transition matrix (STM) is proposed to obtain the probability distribution of the candidate broadcast node set. Based on the probability distribution, the existence conditions and the theoretical expressions for the limiting distribution of energy in energy buffers using a discrete-time continuous-state space Markov chain (DCSMC) model are derived. Furthermore, the closed-form expressions for network outage probability and throughput are obtained with the help of the limiting distributions of energy stored in buffers. Numerous experiments have been performed to validate the derived theoretical expressions of the performance of this cooperative communication network.