2021/04/28 by Phillip B. Oni, Oni, Phillip B., Steven D. Blostein +1
Engineering · #Advanced MIMO Systems Optimization #Electromagnetic Compatibility and Measurements #FOS: Computer and information sciences #Full-Duplex Wireless Communications #Information Theory (cs.IT) #Networking and Internet Architecture (cs.NI) #Sparse and Compressive Sensing Techniques
paper · pdf · doi:10.48550/arxiv.2104.13574
openalex publication_date 2021/04/28 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28
Joint access point (AP) association and physical carrier sensing (PCS)\nthreshold selection has the potential to improve the performance in high\ndensity wireless LANs (WLANs) under high contention, interference and\nself-interference (SI) limited transmissions. Using tools from stochastic\ngeometry, user and AP locations are independent realizations of spatial point\nprocesses. Considering the inherent effects of the channel access protocol, the\nspatial density of throughput (SDT), which depends on channel access\nprobability and coverage rate, is derived as the performance objective.\nLeveraging spatial statistics of the network, a throughput-utility maximization\nproblem is formulated to seek AP association and PCS threshold selection\npolicies that jointly maximize SDT. The AP association and the PCS threshold\nselection policies are derived analytically while an algorithm is proposed for\nnumerical solution. Under simulated scenarios involving full-duplex (FD) nodes,\noptimizing AP association yields performance gains for low to high node density\nin large-scale wireless networks. Considering PCS threshold selection\noptimization jointly with AP association is shown to improve performance by\neffectively separating concurrent transmissions in space. It is shown that AP\nassociation in FD WLANs groups users into minimal contention domains and PCS\nthreshold optimization reduces the interference domain of user groups for\nadditional performance gains.\n