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Mediumband wireless communication refers to wireless communication through a class of channels known as mediumband that exists on the TmTs-plane. This paper, through statistical analysis and computer simulations, studies the performance limits of this class of channels in terms of uncoded bit error rate (BER) and diversity order. We show that, owing mainly to the effect of the deep fading avoidance, which is unique to the channels in the mediumband region, mediumband wireless systems, if designed judiciously, have the potential to achieve significantly superior error rate and higher order diversity even in non-line-of-sight (NLoS) propagation environments where the achievable diversity order is otherwise low., Comment: 6 pages, 5 figures, Accepted for Publication in the Proceedings of IEEE VCC 2023, 28-30 Nov. 2023

The fundamental phenomenon widely known as multipath is unavoidable in wireless communication, and affects almost every element of modern wireless communication systems. The impact of multipath on the received signal depends on whether the delay spread (i.e., spread of time delays associated with different multipath components) is large or small relative to the signalling period of the wireless communication system. In narrowband systems, the delay spread is about one tenth (or less) of the signalling period. The delay spread and the signalling period of broadband systems are in the same order of magnitude. In between these two extremes, there appears to exist an important, yet overlooked, class of systems whose delay spread is neither small nor large enough for them to fall into these two basic classes. In this paper, the effect of multipath on this class of systems denoted henceforth as mediumband is studied, and its channel is characterized in compact form in order to enable future research into this class of wireless communication systems., Comment: 5 pages, 3 figures, Proceedings of IEEE Vehicular Technology conference (VTC-Fall) 2022, London-Beijing