Zobrazeno 1 - 10
of 246
pro vyhledávání: '"Jing Yindi"'
Publikováno v:
Tongxin xuebao, Vol 44, Pp 58-69 (2023)
To solve the channel acquisition overhead problem of frequency division duplex massive MIMO, for the typical scenario of zero-forcing (ZF) precoding at the base station with users’ quality of service guarantee, a supervisory mechanism for the signa
Externí odkaz:
https://doaj.org/article/863ca9997df046ccb06daed8dab56c8e
In this paper, we investigate the problem of jamming detection and channel estimation during multi-user uplink beam training under random pilot jamming attacks in beamspace massive multi-input-multi-output (MIMO) systems. For jamming detection, we di
Externí odkaz:
http://arxiv.org/abs/2410.14215
Interleaved training has been studied for single-user and multi-user massive MIMO downlink with either fully-digital or hybrid beamforming. However, the impact of channel correlation on its average training overhead is rarely addressed. In this paper
Externí odkaz:
http://arxiv.org/abs/2307.16356
In frequency division duplexing (FDD) cell-free massive MIMO, the acquisition of the channel state information (CSI) is very challenging because of the large overhead required for the training and feedback of the downlink channels of multiple coopera
Externí odkaz:
http://arxiv.org/abs/2307.10730
Publikováno v:
IEEE Wireless Communications Letters, vol. 9, no. 8, pp. 1278-1282, Aug. 2020
This letter proposes a modified non-orthogonal multiple-access (NOMA) scheme for systems with a multi-antenna base station (BS) and two single-antenna users, where NOMA transmissions are conducted only when the absolute correlation coefficient (CC) b
Externí odkaz:
http://arxiv.org/abs/2002.11185
In this paper, we study a massive multiple-input multiple-output (mMIMO) relay network where multiple source-destination pairs exchange information through a common relay equipped with a massive antenna array. The source users perform simultaneous wi
Externí odkaz:
http://arxiv.org/abs/2001.11803
We consider the use of deep neural network (DNN) to develop a decision-directed (DD)-channel estimation (CE) algorithm for multiple-input multiple-output (MIMO)-space-time block coded systems in highly dynamic vehicular environments. We propose the u
Externí odkaz:
http://arxiv.org/abs/1901.03435
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Akademický článek
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Water-filling solutions play an important role in the designs for wireless communications, e.g., transmit covariance matrix design. A traditional physical understanding is to use the analogy of pouring water over a pool with fluctuating bottom. Numer
Externí odkaz:
http://arxiv.org/abs/1808.01707