PERFORMANCE ANALYSIS OF EUV HOLOGRAPHIC BEAMFORMING IN VEHICULAR COMMUNICATION NETWORK

This paper presents an analysis of the capacity and bit error rate (BER) in a vehicular communication network that utilizes holographic beamforming at the transmitter. The network operates in urban areas and connects vehicles to the internet through infrastructure. The holographic beamforming technique employed is known as passive electronically steered array (PESA) or phased array, which enables antenna movement control without discrete phase shifters. In optical holography, the reference wave is the traveling wave that transforms into the desired beam, referred to as the object wave. The hologram acts as the structure that transfers energy from the reference wave to the object wave. The pattern of element coupling, which converts guided excitation into a free space wave, is represented by the hologram. In this study, we propose the use of an extreme ultraviolet (EUV) hologram to enhance the system’s performance, particularly in meeting terabyte-level bandwidth requirements. Each base station in the network consists of a large number of antennas. The EUV holographic beamformer serves as a passive system, enabling both reception and transmission using the hologram without the need for antenna-level switching. This eliminates the requirement for separate amplifiers and baseband components at the antenna level because they can be contained within the radio unit. The paper derives closed-form expressions for the capacity and BER of the proposed EUV hologram-based vehicle communication network, considering both base station and access point setups.