BSCP-MAC: A Blockchain-Based Synchronous Control Polling MAC Protocol for Wireless Sensor Networks

In the era of 5G, the concurrency of users in wireless sensor networks increases dramatically, and a blockchain-based synchronous control polling MAC protocol (BSCP-MAC) is designed to avoid information collisions while accelerating information processing efficiency. The protocol proposes to add the polling control system to the underlying blockchain technology to achieve the purpose of system decentralization. Next, the system model and the data distribution method are analyzed, i.e., the packets within the block are served according to the synchronization method. Finally, combining the Markov chain system analysis model and probabilistic mother function analysis method, the scheme is verified in each of the three service strategies of Gated, Exhaustive, and Limited-1, and the results prove that the scheme is correct and feasible. Meanwhile, the three service policies under BSCP-MAC are also compared with each of the three service policies under the traditional single-server polling MAC (TSP-MAC) method respectively. The experiments prove that BSCP-MAC under the blockchain technology architecture significantly reduces packet latency and expands the system throughput. Moreover, all aspects of the system performance are greatly improved from the TSP-MAC, such as reduced network delay, improved information processing efficiency in the face of larger traffic, and increased network resource utilization.