Link performance of an ESPAR-antenna array in rich scattering and clustered channels

This paper aims at evaluating the link performance of an Electronically Steerable Passive Array Radiator (ESPAR) in both rich scattering and clustered channels. Previous work has shown that the performance of an ESPAR-antenna can be comparable to a 2times2 Multiple-Input-Multiple-Output (MIMO) system in a rich scattering environment. The design of the antenna patterns used for transmission was based on intuition, and therefore cannot be guaranteed to be optimal. In this paper we follow a slightly different approach to the design of antenna patterns. We also evaluate the performance of the ESPAR antenna at higher spetral efficiencies than previous literature has done. The performance in terms of spectral-efficiency is evaluated for both rich scattering environments and clustered channels.