SPAWC 2020, 21st IEEE International Workshop on Signal Processing Advances in Wireless Communications, 26-29 May 2020, Atlanta, GA, USA (Virtual Conference)
In this paper we describe the simulation modeling of the OpenAirInterface (OAI) C-RAN testbed deployed at Eurecom and present the performance evaluation of a fast calibration (FC) scheme based on antenna grouping. We generate an indoor LOS radio wave propagation model using ray tracing technique and perform distributed channel reciprocity calibration which is required to exploit uplink (UL) channel estimates to infer the precoder performed on the downlink (DL) channel. We consider a channel based on the geometry of the area where the RRUs are distributed and compare the different choices to form the RRU groups. We validate that the simulation results match the experimental results from our previous work [1].
Type:
Conférence
City:
Atlanta
Date:
2020-05-26
Department:
Systèmes de Communication
Eurecom Ref:
6262
Copyright:
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