Energy-efficient data transmission is a key challenge in Wireless Sensor Networks (WSNs). Cluster heads (CHs) are often used to relay aggregated data from sensor nodes to a central base station (BS). However, the transmission range of such relay nodes is limited, necessitating multihop communication for forwarding data from edge relays to BS. Further, links may not be created due to the unavailability of suitable relays resulting in unreliable networks. The use of cellular device-to-device (D2D) communication eliminates the requirement of very short-range communication of WSNs and also helps in maintaining a good link throughput. In this paper, a cellular D2D-assisted relay communication scheme has been proposed for forwarding data where the issue of link disconnection is solved using dual connectivity of D2D and cellular communication among cluster heads. The proposed scheme, DSPA (D2D Relay Node (DRN) Selection and uplink Power Allocation), uses the Maximum Weight Bipartite Matching for selection of relays. Performance analysis shows that the higher sleeping probability of the sensor nodes improves the overall energy efficiency of the network and also increases the average hop gain.

节能数据传输是无线传感器网络（WSN）的关键挑战。群集头（CH）通常用于将聚合数据从传感器节点中继到中央基站（BS）。但是，这种中继节点的传输范围受到限制，因此需要多跳通信以将数据从边缘中继转发到BS。此外，由于合适的中继器的不可用可能导致不可靠的网络，因此可能不会创建链接。蜂窝设备到设备（D2D）通信的使用消除了WSN的非常短距离通信的需求，并且还有助于维持良好的链路吞吐量。在本文中，已经提出了一种蜂窝D2D辅助中继通信方案，用于转发数据，其中使用D2D的双连通性和簇头之间的蜂窝通信来解决链路断开的问题。所提出的方案DSPA（D2D中继节点（DRN）选择和上行链路功率分配）使用最大权重两方匹配来选择中继。性能分析表明，传感器节点的较高睡眠概率提高了网络的整体能源效率，还增加了平均跳数增益。