# Energy Harvested and Cooperative Enabled Efficient Routing Protocol (EHCRP) for IoT-WBAN
## 2 Related Literature
In the first step, i.e., the initialization phase, a channel competition procedure is done. In the next step, i.e., the routing setup phase, routes having energy abundant are selected. Finally in the third step, time slots are assigned for data communication. Extensive simulations show that the proposed protocol achieved better results as compared to its counterpart in terms of minimizing the energy consumption along with efficiently utilizing the communication channel. [PERSON] et al. [29], focused in their research work on two very important WBAN issues, prolonging the network lifespan and efficient communication. A complete novel scheme is proposed for WBANsnamed \"Robust and Energy Harvested-aware Routing Protocol with Clustering Approach in Body Area Networks (EH-RCB)\". The authors targeted many WBAN network issues such as throughput, network lifespan, end to end delay, etc. They have proposed a system in which tiny sensors nodes are placed on the human body. These tiny sensors sense the important health-related parameters and forward it to two sink nodes. The two sink nodes are positioned on the front and back side of the human body. The highly critical data is sent directly to the sink node. Forwarder node selection is based on the optimal cost function (CF) value, which is calculated based on different parameters, such as residual energy, required transmission power, link SNR and distance from the sink node. Energy harvesting technique is adopted to provide additional energy to the sensor nodes in order to help out in prolonging the network lifetime. [PERSON] et al. [30] proposed a robust solution for WBANS. It works for one of the important health-related parameters, ECG. In order to save energy, the ECG signals are divided into acute and non-acute. The overall technical system is controlled and monitored by an IoT controller named Light Weight Power Management Controller. [PERSON] et al. [31], presented the \"Energy Budget-based Multiple Attributes Decision Making Algorithm (EB-MADM)\" which is designed to be low power, having a cluster-based routing mechanism. In this technique an optimal cluster head in each round is selected based on multiple factors, such as residual energy and low energy consumption. Furthermore, EB-MADM uses a cooperative effort which saves transmission energy by not sending redundant/duplicate data in consecutive rounds. The authors claimed that their simulation results shows better performance in terms of network stability, propagation delay, throughput and network lifetime as compared to its counterparts. [PERSON] et al. [32], characterized an ultra-wide band (UWB) network for WBAN applications and all wearable IoT devices. They designed the UWB's antenna using two unlike substrates, FR4 and denim textile material, which work from 2.9 to 11 GHz, as a result covering the whole UWB frequency band. A model of the proposed UWB antenna is then prepared to work on dissimilar antenna parameters such as gain, radiation patterns and reflection quantity (S11). [PERSON] et al. [33], have focused on uses of the IoT for healthcare purposes. They worked on how to use biological devices to get human data and forward it to nursing institutes. They have defined special health services (SHS), to sense certain health parameters via wireless communication techniques such as WSN, RFID [6; 11] and smart phones. [PERSON] et al. [34], proposed Fog-supported Internet of Things architecture for Remote Patient monitoring Systems using Wireless body Area Sensor Networks (WBASNs) protocol which works for a range of medical applications such as patient monitoring and their activities recognition. They integrated WBASNs with a communication structure for the purpose of getting the best and pre-defined results. They also used the model of fog computing in their proposed system. They claimed that the results and simulations showed much reduction of load on IoT WBANs and it worked much better. [PERSON] et al. [35] proposed the so-called Energy-efficient Routing Protocol (EERP) scheme for wireless body area networks.