Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Zheng, Mengfan"'
Autor:
Zheng, Mengfan
In coding theory, an error-correcting code can be encoded either systematically or non-systematically. In a systematic encode, the input data is embedded in the encoded output. Conversely, in a non-systematic code, the output does not contain the inp
Externí odkaz:
http://arxiv.org/abs/2308.08201
Autor:
Zheng, Mengfan, Ling, Cong
Polarization-adjusted convolutional (PAC) codes, as a concatenated coding scheme based on polar codes, is able to approach the finite-length bound of binary-input AWGN channel at short blocklengths. In this paper, we extend PAC codes to the fields of
Externí odkaz:
http://arxiv.org/abs/2308.05472
Autor:
Li, Tianya, Wu, Yongpeng, Zheng, Mengfan, Zhang, Wenjun, Xing, Chengwen, An, Jianping, Xia, Xiang-Gen, Xiao, Chengshan
In this paper, we investigate a joint device activity detection (DAD), channel estimation (CE), and data decoding (DD) algorithm for multiple-input multiple-output (MIMO) massive unsourced random access (URA). Different from the state-of-the-art slot
Externí odkaz:
http://arxiv.org/abs/2112.09310
A joint sparse-regression-code (SPARC) and low-density-parity-check (LDPC) coding scheme for multiple-input multiple-output (MIMO) massive unsourced random access (URA) is proposed in this paper. Different from the state-of-the-art covariance-based m
Externí odkaz:
http://arxiv.org/abs/2009.10912
In this paper, we investigate a large intelligent surface-enhanced (LIS-enhanced) system, where a LIS is deployed to assist secure transmission. Our design aims to maximize the achievable secrecy rates in different channel models, i.e., Rician fading
Externí odkaz:
http://arxiv.org/abs/2009.00473
In this paper, we propose a new polar coding scheme for the unsourced, uncoordinated Gaussian random access channel. Our scheme is based on sparse spreading, treat interference as noise and successive interference cancellation (SIC). On the transmitt
Externí odkaz:
http://arxiv.org/abs/2007.05739
In this paper, we investigate the design of secure transmission frameworks with an intelligent reflecting surface (IRS). Our design aims to minimize the system energy consumption in cases of rank-one and full-rank access point (AP)-IRS links. To faci
Externí odkaz:
http://arxiv.org/abs/1909.00629
Existing polarization theories have mostly been concerned with Shannon's information measures, such as Shannon entropy and mutual information, and some related measures such as the Bhattacharyya parameter. In this work, we extend polarization theorie
Externí odkaz:
http://arxiv.org/abs/1907.06423
In this paper, we propose a low-complexity, secrecy capacity achieving polar coding scheme for the cognitive interference channel with confidential messages (CICC) under the strong secrecy criterion. Existing polar coding schemes for interference cha
Externí odkaz:
http://arxiv.org/abs/1710.10202
In this paper, we consider the problem of polar coding for block fading channels, with emphasis on those with instantaneous channel state information (CSI) at neither the transmitter nor the receiver. Our approach is to decompose a block fading chann
Externí odkaz:
http://arxiv.org/abs/1701.06111