A Cluster-based Approach to Maximize Number of Users in Wireless Multi-Cell Networks

Adasme, Pablo; Juan, Enrique San; Soto, Ismael; Valdes, F.

doi:10.1109/ica-acca.2018.8609801

Cited by 1 publication

(1 citation statement)

References 11 publications

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“…The proposed SFDMA technique aims to provide network access to as many users as possible, operating the channel resources assignment allowing the achievement of potentially requested communication requirements. In this regard, the problem formulation can be presented in a binary fashion [45], [46]. Specifically, we represent the n-th user requesting the access by means of a binary variable z n that describes the access status, that is, z n =1 if the access is granted, otherwise z n =0.…”

Section: A Problem Formulationmentioning

confidence: 99%

Hybrid Space-Frequency Access for Underwater Acoustic Networks

Petroni

et al. 2022

IEEE Access

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Underwater acoustic networks have recently risen as an effective support to several marine and oceanic applications. However, the potential presence of a large number of nodes simultaneously connected has necessarily led the scientific community to address the matter of communication resources management, hence to provide the best possible performance for each link. Since underwater acoustic communications (UWACs) suffer from limited bandwidth and long propagation delays, medium access control results really challenging. The best known schemes, that are time division, frequency division and code division multiple access have been considered to handle this problem in underwater scenarios, but they showed both strength points and weaknesses. Furthermore, spatial division multiple access achievable in Multiple-Input Multiple-Output (MIMO) systems has emerged as a promising technique able to fit with the multipath propagation typically characterizing UWACs. Dealing with underwater medium access control, we investigate the feasibility of a novel hybrid multiple access technique that works in a bi-dimensional resources domain, namely space and frequency. This solution is aimed to mitigate the multi-user interference by exploiting spatial diversity and, whenever necessary, by applying frequency reuse. Finally, we discuss the feasibility and potential of massive MIMO paradigm, conveniently recast into the underwater context.INDEX TERMS Underwater acoustics, access protocols, MIMO.

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Section: A Problem Formulationmentioning

confidence: 99%

Hybrid Space-Frequency Access for Underwater Acoustic Networks

Petroni

et al. 2022

IEEE Access

View full text Add to dashboard Cite

show abstract

A Cluster-based Approach to Maximize Number of Users in Wireless Multi-Cell Networks

Cited by 1 publication

References 11 publications

Hybrid Space-Frequency Access for Underwater Acoustic Networks

Hybrid Space-Frequency Access for Underwater Acoustic Networks

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