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The Internet of Things (IoT) is going to create a heterogeneous network of billions or trillions of connected things with self-aware, self-configuration capabilities that will exchange data with each other. This heterogeneous IoT network requires standard protocols, secure and energy-efficient wireless communication, and the allocation of unique identities such as IPv6 addresses. One of the key challenges in such a heterogeneous network is the maintenance of device location and unique identity to ensure the smooth functioning of location-aware applications. Hence, this paper presents a stateless spatiotemporal IPv6 addressing scheme called four-dimensional IP addressing (FDIPA). It is founded on the idea that two objects can not be in the same place at the same time. It uses the time and location information of the device to generate the target IPv6 address and assigns it to the device after verifying its uniqueness with the duplicate address detection (DAD) protocol. It not only maintains spatial and temporal information but also guarantees a unique identity for a large-sized network. Analytically, it is proved that FDIPA will always generate a unique identity if there is no technological limitation. However, the performance of FDIPA is evaluated based on metrics such as Assignment Success Rate (ASR), communication overhead, and total energy consumption in the assignment of a unique IPv6 address. The experimental results show that FDIPA achieves good ASR while keeping low energy consumption and less overhead in the network.

A Stateless Spatial IPv6 Address Configuration Scheme for Internet of Things