WebJun 8, 2024 · In the following, we propose a novel preamble based on IAM, which only consists of 2 columns of pilots. Compared to the conventional scheme in Fig. 1a, the proposed structure reduces 1/3 pilot overhead at a negligible price of channel estimation performance. 3.1 Preamble Structure of the Proposed Scheme. Figure 1b depicts the … Weband thereby avoid the large training overhead required for estimating the downlink channels at UEs [1]. However, even with TDD mode of operation, the large number of UEs whose channel state information (CSI) is required at the access points (APs) results in either an inordinately high pilot overhead, or in severe pilot contamination. Hence, the
A Low Pilot-Overhead Preamble for Channel Estimation with
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Webspectrum-efficient pilot design and reliable CSI acquisition in this Letter. Superimposed pilot design: In the conventional orthogonal pilots as shown in Fig. 1a, pilots of different transmit antennas are non-overlapping and null pilots are used to prevent the mutual interferences among different transmit antennas at the cost of high pilot ... WebDec 1, 2024 · The pilot overhead of diamond grid is adjustable based on the essential dimension of the GDPS basis in time, frequency and transmitter spatial domain which according to (6) are proportional to the bandwidth of the channel in each domain. The proposed channel estimator has better performance than the LS estimator. WebApr 6, 2024 · Apr 06, 2024 (The Expresswire) -- The Overhead Conductor Market (2024-2030) features an extensive analysis of the market's various types [Conventional, High... open g guitar tuning chart