Proof-of-QoE NOMA Token: A Crypto Rewarding Concept to Incentivize Local Relay In Non-Orthogonal Multiple Access Wireless Networks

Abstract

In Non-Orthogonal Multiple Access (NOMA) wireless networks, it can be beneficial to allow closer users to relay the cache data to farther users. However, motivating short-distance NOMA users to participate in the relaying requires an appropriate incentive. In this paper, we propose a new crypto token - NOMAToken on the Ethereum blockchain leveraging the Proof of Quality of Experience (QoE) consensus mechanism. NOMAToken serves as a payment token that facilitates all monetary transactions within a NOMA network. As an Ethereum-based token, it can be held or traded against reserve tokens, establishing its own price. The optimal price for retransmission services is determined using the Vickery-Clarke-Groves (VCG) second price auction technique. We discuss the Proof-of-QoE driven consensus model and a Prospect Theory inspired scoring model to regulate the token. The consensus model is designed to ensure that the relay provides the highest possible QoE for its users, while the scoring mechanism serves as a paradigm to allow users to mint new NOMAToken and introduce liquidity.