Nelson Costa

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— Narrowband multiple-input – multiple-output (MIMO) measurements using 16 transmitters and 16 receivers at 2.11 GHz were carried out in Manhattan. High capacities were found for full, as well as smaller array configurations, all within 80% of the fully scattering channel capacity. Correlation model parameters are derived from data. Spatial MIMO channel(More)
The basic concepts for exoskeletal systems have been suggested for some time with applications ranging from construction, manufacturing and mining to rescue and emergency services. In recent years, research has been driven by possible uses in medi-cal/rehabilitation and military applications. Yet there are still significant barriers to the effective use and(More)
Many patients with spinal injures are confined to wheelchairs, leading to a sedentary lifestyle with secondary pathologies and increased dependence on a carer. Increasing evidence has shown that training using devices such as Reciprocating Gait Orthoses (RGO) reduces the incidence of these secondary pathologies, but the physical effort involved in this(More)
The basic concepts for exoskeletal systems have been suggested for some time with 21 applications ranging from construction, manufacturing and mining to rescue and emergency services. In recent years, research has been driven by possible uses in medi-23 cal/rehabilitation and military applications. Yet there are still significant barriers to the effective(More)
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