This paper proposes a sectored-cell framework for mmWave communication. It consists of multiple concurrent beams generated from a partially-connected hybrid precoder at an eNodeB (eNB) to serve a dense user population in urban scenarios. Multiple beams sweep the cell in a round-robin fashion to serve the sectors with fair scheduling opportunities. Each beam serves all the users located within a sector using orthogonal frequency division multiple access. We aim to estimate an optimum beamwidth and an optimum number of beams required to maximize the average of long-run user rates with a given power budget for transmission and hardware consumption at the eNB. Simulation results demonstrate that employing higher beams increases the side-lobe interference still, the achievable average long-run user rate improves on account of longer sector sojourn time and higher frequency reuse. On the other hand, employing a very narrow beam is also not optimal.

Joint Beamwidth and Number of Concurrent Beams Estimation in Downlink mmWave Communications / Varshney, Nancy; De, Swades. - ELETTRONICO. - (2021), pp. 255-260. (Intervento presentato al convegno 2021 National Conference on Communications (NCC) tenutosi a Kanpur (India) nel 27-30 July 2021) [10.1109/ncc52529.2021.9530054].

Joint Beamwidth and Number of Concurrent Beams Estimation in Downlink mmWave Communications

Varshney, Nancy;
2021

Abstract

This paper proposes a sectored-cell framework for mmWave communication. It consists of multiple concurrent beams generated from a partially-connected hybrid precoder at an eNodeB (eNB) to serve a dense user population in urban scenarios. Multiple beams sweep the cell in a round-robin fashion to serve the sectors with fair scheduling opportunities. Each beam serves all the users located within a sector using orthogonal frequency division multiple access. We aim to estimate an optimum beamwidth and an optimum number of beams required to maximize the average of long-run user rates with a given power budget for transmission and hardware consumption at the eNB. Simulation results demonstrate that employing higher beams increases the side-lobe interference still, the achievable average long-run user rate improves on account of longer sector sojourn time and higher frequency reuse. On the other hand, employing a very narrow beam is also not optimal.
2021
978-1-6654-4177-3
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2989463