Realization Method of Dynamic Allocation of Distributed Spectrum Resources

Abstract

A method for realizing the dynamic allocation of distributed spectrum resources in the field of wireless communication technology, by distributing the spectrum allocation process in the secondary wireless spectrum market, removing the dependence of the centralized allocation method on the central node, and ensuring feasible computing and Under the premise of communication overhead, combined with the spatial reusability of spectrum, a distributed incentive mechanism is designed, which is anti-manipulation and encourages nodes to participate in the distributed spectrum dynamic allocation process truthfully. According to the channel estimation and demand information collected locally, the nodes use the greedy algorithm to improve the overall allocation utility of spectrum resources through cooperation.

Description

technical field [0001] The present invention relates to a technology in the field of wireless networks, in particular to a method for dynamically allocating distributed spectrum resources in a wireless network, which removes the dependence on the central node in the centralized allocation method, and on the premise of ensuring feasible calculation and communication overhead, Combined with the spatial reusability of spectrum, nodes are encouraged to participate in the distributed dynamic spectrum allocation process faithfully, improving the allocation utility of spectrum resources. Background technique [0002] Rapidly growing wireless technologies are competing for limited spectrum resources. A large number of newly added wireless services and applications require spectrum resources, which have been difficult to meet through the traditional high-cost and low-efficiency static spectrum allocation methods. Therefore, it is urgent to design a fair and efficient dynamic allocat...

AI Technical Summary

Problems solved by technology

Second, the scalability of the centralized allocation method is not ideal. In order to dynamically allocate spectrum resources on demand, the central node needs to establish a reliable communication channel with each wireless node in order to collect the evaluation and demand of spectrum resources from nodes. Such communication channels may not exist in actual application scenarios

Third, the robustness of the centralized distribution method is questionable. Once the central node fails, the entire distribution process will be forced to stop

Second, the wireless spectrum has spatial reusability. When a sufficient signal-to-noise ratio is satisfied, multiple nodes can simultaneously use the spectrum of the same band, which makes the optimization of spectrum resource allocation even in a centralized environment. not computable in polynomial time

Third, nodes have limited computing and communication capabilities, and cannot directly adopt traditional trusted multi-party computing methods. Instead, it is necessary to design an anti-manipulative distributed spectrum dynamic allocation mechanism to prevent nodes from obtaining improper utility through strategic behavior. Incentivize nodes to truly participate in the dynamic allocation process

However, this technology does not consider the difference in the value of spectrum resources to different sensor nodes, and cannot allocate limited spectrum resources to the nodes that can use it most effectively, and there are also many disadvantages of the above-mentioned centralized method

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