Description:As shown in Figure 1.a and Figure 1.b, a base station is associated with two antennas and it sends downlink signals to multiple Internet-of-Things devices (IoDs) through a passive reconfigurable intelligent surface (RIS). Passive RIS is considered to be associated with a uniform planar array with L=N × M elements, where N and M are the number of elements present in horizontal and vertical direction, respectively. The RIS is embedded on a wall of a building to reflect the transmitted signals from base station towards IoDs. It is considered that all the IoDs are equipped with single antenna. RIS is operated in energy splitting mode to fulfil the target of energy efficient operation. All the channels between various links in the system follow Nakagami distribution and the channels are reciprocal. The transmission between base station and IoDs is possible using either time-division multiple access or non-orthogonal multiple access technique. , Claims:We Claim:
1. The network architecture can be applied to achieve higher system spectrum efficiency and to minimize the congestion in highest possible extend.

2. Based on energy harvesting by using radio frequency energy harvesting module, the network will become an energy efficient system.

3. The performance of the architecture will be able to gain more superiority over previous generation relay-based network architecture.

4. The architecture is more robust and it can be used to achieve higher end-to-end reliability.

5. The system flexibility and data storage capability at IoDs are sufficiently higher as desirable.